U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Institute for Occupational Safety and Health

CDC Stacks Public Health Publications

The National Institute for Occupational Safety and Health (NIOSH) conducts research and makes recommendations for preventing work-related injuries, illnesses, and deaths. For more information, visit https://www.cdc.gov/niosh/index.html.

(183)
(711)
(1101)
(1282)
(1653)
(1923)
(2675)
(2174)
(2169)
(2199)
(2025)
(2294)
(2195)
(2187)
(1953)
(1953)
(1863)
(1812)
(1891)
(1851)
(2014)
(1833)
(1770)
(1792)
(1618)
(1440)
(1339)
(1049)
(1126)
(1101)
(945)
(1158)
(1313)
(1239)
(1325)
(1190)
(1403)
(1035)
(1171)
(1174)
(1210)
(1053)
(1184)
(1312)
(1467)
(1471)
(1458)
(1275)
(1229)
(1333)
(1434)
(1233)
(1062)
(1077)
(826)
(603)
(527)
(112)
(50)
(32)
(40)
(31)
(34)
(23)
(13)
(6)
(7)
(6)
(5)
(2)
(2)
(1)
(1)
(2)
(2)
(2)
(3)
(1)
(1)
(2)
(2)
(2)
(3)
(1)
(2)
(2)
(2)
(3)
(5)
(36)
0 of 90
(1)
(588)
(12)
(2)
(119)
(1)
(85)
(2)
(13)
(1)
(182)
(57)
(5)
(49)
(36)
(4)
(7)
(1088)
(18)
(466)
(5)
(80535)
(1)
(4)
0 of 24
(2)
(5)
(938)
(768)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(909)
(260)
(3)
(2)
(2)
(1)
(3)
(1)
(6)
(1)
(1)
(196)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(5)
(2)
(1)
(1)
(9)
(3)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(119)
(1)
(1)
(3)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(3)
(97)
(1)
(8)
(6)
(1)
(3)
(1)
(1)
(1)
(2)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(6254)
(2)
(2)
(1)
(4)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(7)
(2)
(360)
(1)
(28)
(5)
(1)
(2)
(1)
(4)
(1)
(1)
(1)
(1)
(3767)
(5)
(2)
(1)
(10)
(1)
(1)
(2)
(1)
(997)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(103)
(3)
(1)
(7)
(1)
(2)
(1)
(1)
(1)
(98)
(1)
(1)
(39)
(1)
(94)
(1)
(1)
(2)
(1)
(2776)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(2)
(2)
(1)
(3)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(5)
(2)
(2012)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2924)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(38)
(2)
(1)
(2)
(1)
(2)
(2)
(1)
(1)
(167)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(405)
(1)
(2377)
(1097)
(4)
(1840)
(2)
(2)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(5)
(1)
(1)
(1)
(2)
(1)
(244)
(1)
(7)
(74)
(1)
(1)
(1)
(1587)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(4)
(4)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(1)
(4)
(1)
(1)
(6)
(1)
(766)
(1)
(3)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(302)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(3)
(3)
(1)
(1)
(1)
(5092)
(2)
(1)
(1)
(4218)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2708)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2170)
(1)
(256)
(1)
(1)
(1166)
(1)
(1)
(1)
(2)
(394)
(1)
(1)
(4)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(667)
(1)
(611)
(1)
(1)
(3)
(3)
(1)
(1)
(234)
(1229)
(2)
(605)
(3)
(1)
(4)
(2)
(1)
(4984)
(17)
(1)
(13)
(4)
(92)
(7)
(177)
(2)
(2)
(1)
(1)
(2)
(6)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2852)
(1)
(136)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(16323)
(1)
(531)
(2)
(1)
(1513)
(3)
(2)
(5563)
(5884)
(26810)
(10209)
(23657)
(4371)
(3613)
(1)
(5685)
(7503)
(7289)
(5)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(9870)
(2)
(1)
(1)
(1)
(3)
(13)
(2)
(460)
(1)
(1)
(3)
(1)
(1)
(3)
(8)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(3)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(7)
(101)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(3)
(3)
(1)
(1)
(1)
(171)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(4)
(1)
(1)
(6)
(5)
(255)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(5)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(1)
(496)
(196)
(3)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(6)
(2)
(1)
(1)
(1)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(651)
(1)
(2666)
(1)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(18)
(1)
(1)
(991)
(1)
(1)
(1435)
(1)
(2)
(215)
(1)
(1)
(1)
(1909)
(2)
(1)
(1)
(3)
(2)
(3)
(1)
(5266)
(14)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(11847)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1428)
(1)
(1)
(1)
(81)
(2)
(2)
(1)
(308)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
0 of 750
(47)
(29)
(1)
(1)
(1)
(1)
(1)
(2)
(790)
(5)
(282)
(3570)
(808)
(2061)
(6)
(1)
(3855)
(587)
(1)
(17279)
(11)
(1)
(2)
(22)
(1)
(1)
(112)
(132)
(152)
(4777)
(31)
(3)
(4)
(3)
(16)
(4)
(1)
(3)
(24)
(16)
(16)
(50)
(559)
(4)
0 of 44
(1)
(1)
(1)
(48)
(57)
(125)
(24)
(24)
(8)
(86)
(153)
(75)
(19)
(11)
(1)
(661)
(1)
(44)
(19)
(41)
(3)
(86)
(44)
(29)
(2539)
(1)
(6)
(21)
(1179)
(15)
(122)
(14)
(31)
(1)
(633)
(4)
(10)
(3)
(20)
(2811)
(38)
(174)
(7)
(8)
(4)
(2575)
(81)
(5)
(4)
(154)
(2186)
(239)
(4)
(108)
(32)
(198)
(182)
(1)
(1)
(221)
(221)
(8)
(61)
(2)
(1)
(117)
0 of 66
(68)
(6)
(1268)
(9)
(5)
(5412)
(6234)
(4)
(9055)
(7)
(19)
(15)
(44)
(32)
(38)
(27)
(74)
(216)
(4)
(160)
(75)
(6)
(27)
(6)
(109)
(5)
(747)
(26)
(12)
(6)
(2145)
(52)
(1955)
(1992)
(12)
(4591)
(9)
(62)
(328)
(7)
(747)
(8)
(5250)
(1307)
(2566)
(7)
(52)
(10)
(21)
(246)
(169)
(36)
(10)
(34)
(277)
(23)
(402)
(34)
(24)
(164)
(66)
(52)
(6)
(4)
(18)
(55)
(157)
(11)
(39)
(170)
(3236)
(61)
(17)
(81)
(5)
(225)
(157)
(41)
(90)
(5)
(238)
(4)
(4)
(265)
(15)
(5)
(4)
(995)
(6)
(1269)
(1281)
(39)
(113)
(4)
(6)
(256)
(12)
(2027)
(53)
(25)
(7)
(6)
(4)
(6)
(227)
(202)
(1875)
(7)
(208)
(4)
(14)
(26)
(4)
(7)
(234)
(112)
(23)
(547)
(362)
(371)
(6)
(153)
(116)
(19)
(1265)
(1302)
(246)
(10)
(20)
(4)
(1741)
(216)
(143)
(94)
(4)
(70)
(357)
(11)
(5)
(4)
(22)
(23)
(63)
(6)
(6)
(4)
(61)
(5)
(219)
(64)
(190)
(41)
(190)
(4)
(35)
(12)
(75)
(4)
(32)
(12)
(127)
(9)
(248)
(5)
(5)
(2136)
(1573)
(4)
(1932)
(7)
(555)
(67)
(29)
(69)
(52)
(418)
(4)
(28)
(4)
(4)
(96)
(5)
(4)
(37)
(8)
(73)
(2815)
(498)
(33)
(12)
(5)
(29)
(115)
(253)
(7)
(6)
(10)
(64)
(27)
(339)
(21)
(282)
(151)
(262)
(4)
(321)
(5)
(109)
(62)
(5)
(3905)
(3536)
(49)
(25)
(5)
(39)
(14)
(802)
(90)
(4)
(53)
(210)
(12)
(167)
(1844)
(144)
(163)
(263)
(4)
(540)
(392)
(4486)
(535)
(5)
(45)
(214)
(26)
(78)
(9)
(111)
(51)
(70)
(32)
(178)
(4)
(25)
(13)
(4)
(31)
(4)
(4)
(479)
(25)
(4)
(52)
(7)
(71)
(8)
(195)
(521)
(172)
(163)
(5)
(8)
(10)
(321)
(18)
(6)
(4)
(587)
(5)
(2002)
(19)
(165)
(6)
(673)
(44)
(33)
(34)
(5)
(73)
(683)
(4)
(306)
(362)
(311)
(85)
(4)
(331)
(40)
(7)
(8)
(33)
(4)
(4)
(50)
(251)
(4)
(186)
(8)
(5)
(34)
(34)
(56)
(12)
(8)
(10)
(173)
(7035)
(25)
(640)
(8)
(21)
(8)
(25)
(336)
(2520)
(5)
(44)
(404)
(731)
(1104)
(8)
(26)
(60)
(206)
(4)
(4)
(87)
(46)
(16)
(888)
(5)
(2375)
(5)
(370)
(6)
(52)
(396)
(52)
(313)
(1071)
(23)
(1992)
(480)
(4869)
(5)
(1378)
(7)
(7028)
(16)
(1647)
(5)
(7)
(530)
(9)
(8)
(5496)
(5)
(30)
(117)
(9)
(6)
(15)
(26)
(2427)
(47)
(64)
(13)
(37)
(4)
(72)
(5)
(13)
(5)
(8)
(26)
(85)
(4)
(8)
(861)
(186)
(6)
(7)
(474)
(111)
(254)
(18)
(776)
(2428)
(4)
(8)
(698)
(21)
(24)
(13)
(7)
(370)
(39)
(67)
(349)
(284)
(4)
(4)
(15)
(2048)
(1459)
(123)
(34)
(22)
(56)
(5)
(7)
(42)
(20)
(33)
(8)
(4)
(4)
(404)
(103)
(49)
(455)
(588)
(11)
(626)
(349)
(4)
(166)
(11)
(6)
(304)
(27)
(667)
(119)
(5)
(21)
(15)
(9)
(5)
(6)
(5)
(4)
(1217)
(43)
(653)
(212)
(5)
(4)
(57)
(139)
(75)
(5)
(65)
(18)
(116)
(7)
(16)
(4)
(4)
(6895)
(56)
(54)
(10)
(332)
(2465)
(17)
(4)
(14)
(10)
(3471)
(16)
(14)
(1503)
(5)
(5)
(7)
(11)
(8)
(171)
(945)
(1222)
(1257)
(4)
(4)
(4)
(50)
(589)
(5)
(6)
(519)
(897)
(32)
(22)
(5)
(4)
(202)
(38)
(12)
(42)
(96)
(7)
(58)
(61)
(84)
(10)
(154)
(11)
(7)
(244)
(956)
(58)
(15)
(31)
(343)
(510)
(6)
(1191)
(12)
(23)
(10)
(6)
(16)
(45)
(5)
(1614)
(4)
(7)
(32)
(4)
(1474)
(4)
(4)
(17)
(18)
(4)
(21)
(5)
(14)
(56)
(20)
(4)
(34)
(22)
(8)
(10)
(125)
(4)
(38)
(532)
(9)
(5)
(59)
(1163)
(77)
(5)
(1530)
(5)
(4)
(75)
(77)
(7)
(1403)
(418)
(6)
(10)
(133)
(5483)
(49)
(7)
(690)
(1149)
(371)
(6)
(196)
(5)
(233)
(345)
(369)
(9)
(75)
(8)
(5)
(49)
(5429)
(3941)
(4)
(10)
(9)
(60)
(4)
(5)
(131)
(8)
(21)
(124)
(4)
(363)
(10)
(242)
(4727)
(19)
(26)
(102)
(11)
(160)
(18)
(31)
(28)
(41)
(2681)
(32)
(378)
(2895)
(208)
(4)
(2745)
(843)
(1060)
(7)
(31)
(62)
(10)
(431)
(23)
(13)
(20)
(6)
(40)
(6)
(4)
(26)
(12)
(1110)
(4)
(9)
(7)
(29)
(791)
(19)
(8)
(10054)
(4)
(111)
(11)
(4)
(4)
(911)
(8)
(3906)
(6)
(9)
(90)
(7)
(4)
(3248)
(5)
(3350)
(351)
(70)
(4)
(50)
(4)
(4)
(28)
(23)
(9)
(15)
(38)
(44)
(10)
(17)
(11)
(7)
(206)
(3276)
(15)
(3289)
(865)
(121)
(211)
(84)
(171)
(65)
(55)
(41)
(75)
(171)
(40)
(112)
(5)
(40)
(24)
(2258)
(1598)
(6)
(8)
(5)
(12)
(172)
(27)
(5)
(197)
(122)
(51)
(9)
(8)
(5)
(6)
(1263)
(6)
(22)
(9762)
(39)
(35)
(31)
(80470)
(20)
(1157)
(8)
(5)
(4)
(14)
(14)
(6)
(6)
(309)
(38)
(5)
(313)
(4)
(4)
(127)
(8)
(131)
(125)
(628)
(96)
(7)
(84)
(11)
(6)
(5015)
(385)
(4)
(7)
(5)
(29)
(41)
(6)
(6501)
(5)
(11)
(217)
(34)
(5)
(102)
(156)
(4)
(15)
(89)
(52)
(31)
(94)
(6)
(4)
(8)
(6)
(455)
(29)
(76)
(11)
(5)
(7)
(12)
(738)
(9)
(179)
(521)
(203)
(10)
(40)
(56)
(21)
(49)
(8)
(7)
(8)
(14)
(34)
(28)
(50)
(1379)
(585)
(11)
(11)
(716)
(229)
(64)
(15)
(9)
(37)
(12)
(1368)
(35)
(1669)
(15)
(6)
(17)
(5)
(35)
(18)
(33)
(5)
(361)
(422)
(15)
(1370)
(1340)
(132)
(272)
(165)
(164)
(13)
(11)
(447)
(11)
(187)
(44)
(78)
(17)
(7)
(6)
(108)
(20)
(18)
(5)
(21)
(5)
(7)
(7)
(45)
(5)
(6)
(793)
(384)
(2164)
(7912)
(7247)
(7)
(8)
(5)
(7988)
(6326)
(11)
(11)
(191)
(6)
(80180)
(4846)
(12)
(8)
(7)
(60)
(5)
(79)
(1503)
(152)
(894)
(56)
(1160)
(6)
(545)
(220)
(8)
(83)
(1714)
(117)
(61)
(2399)
(389)
(860)
(7)
(752)
(622)
(296)
(382)
(6)
(988)
(17)
(13)
(27)
(1154)
(2143)
(34)
(9)
(183)
(89)
(18)
(10)
(5464)
(15)
(5)
(29)
(11)
(1641)
(140)
(166)
(180)
(151)
(51)
(63)
(166)
(52)
(35)
(106)
(3247)
(5)
(9)
(32)
(7)
(14)
(840)
(205)
(37)
(407)
(10)
(8)
(15)
(19)
(23)
(100)
(758)
(262)
(10)
(1848)
(30)
(5)
(783)
(7)
(62)
(44)
(110)
(30)
(136)
(31)
(17)
(139)
(9)
(16)
(680)
(903)
(1339)
(22)
(12)
(7)
(25)
(50)
(7)
(935)
(3143)
(115)
(5)
(723)
(54)
(454)
(6)
(590)
(7)
(7)
(36)
(66)
(6)
(310)
(62)
(23)
(31)
(359)
(5)
(124)
(9)
(707)
(100)
(3094)
(312)
(8)
(17)
(25)
(5)
(259)
(9196)
(23)
(11)
(47)
(121)
(13)
(7)
(88)
(15)
(7)
0 of 1000
(76)
(66)
(38)
(49)
(38)
(51)
(50)
(113)
(79)
(93)
(62)
(38)
(46)
(36)
(51)
(109)
(247)
(56)
(60)
(83)
(277)
(86)
(106)
(43)
(57)
(135)
(48)
(126)
(37)
(44)
(73)
(36)
(42)
(44)
(72)
(38)
(98)
(39)
(226)
(42)
(38)
(69)
(71)
(64)
(122)
(54)
(77)
(62)
(37)
(151)
(143)
(52)
(51)
(43)
(63)
(68)
(36)
(49)
(70)
(50)
(52)
(45)
(61)
(173)
(63)
(39)
(59)
(38)
(88)
(41)
(39)
(69)
(60)
(50)
(45)
(54)
(55)
(38)
(105)
(123)
(43)
(59)
(69)
(53)
(80)
(69)
(53)
(42)
(80)
(58)
(147)
(43)
(45)
(99)
(37)
(46)
(47)
(88)
(92)
(37)
(45)
(85)
(78)
(37)
(37)
(55)
(38)
(66)
(44)
(55)
(84)
(45)
(59)
(83)
(159)
(62)
(42)
(129)
(84)
(40)
(94)
(61)
(108)
(70)
(47)
(77)
(62)
(179)
(36)
(44)
(38)
(40)
(99)
(43)
(60)
(73)
(69)
(926)
(88)
(48)
(39)
(46)
(189)
(47)
(36)
(61)
(36)
(60)
(129)
(101)
(71)
(72)
(39)
(147)
(39)
(88)
(37)
(75)
(41)
(43)
(109)
(37)
(39)
(47)
(250)
(59)
(77)
(126)
(36)
(41)
(93)
(44)
(41)
(41)
(57)
(140)
(66)
(45)
(135)
(59)
(55)
(49)
(58)
(64)
(38)
(48)
(37)
(48)
(56)
(147)
(46)
(72)
(38)
(38)
(55)
(72)
(140)
(37)
(103)
(82)
(52)
(119)
(43)
(88)
(84)
(38)
(36)
(53)
(82)
(42)
(42)
(51)
(41)
(47)
(44)
(58)
(41)
(79)
(47)
(52)
(53)
(66)
(172)
(48)
(39)
(157)
(82)
(37)
(49)
(37)
(46)
(61)
(98)
(59)
(126)
(41)
(80)
(71)
(225)
(100)
(51)
(122)
(41)
(39)
(54)
(42)
(48)
(37)
(40)
(74)
(84)
(140)
(44)
(56)
(58)
(171)
(38)
(45)
(42)
(167)
(40)
(48)
(36)
(76)
(119)
(71)
(39)
(86)
(58)
(41)
(39)
(55)
(69)
(55)
(56)
(213)
(155)
(40)
(60)
(75)
(87)
(41)
(52)
(88)
(83)
(41)
(43)
(87)
(85)
(56)
(54)
(65)
(47)
(55)
(62)
(81)
(208)
(49)
(73)
(61)
(47)
(36)
(183)
(38)
(45)
(45)
(105)
(43)
(82)
(93)
(44)
(85)
(40)
(46)
(62)
(53)
(48)
(44)
(97)
(39)
(65)
(56)
(49)
(69)
(43)
(147)
(44)
(42)
(46)
(54)
(45)
(125)
(39)
(60)
(74)
(200)
(85)
(250)
(83)
(87)
(37)
(257)
(97)
(78)
(65)
(175)
(92)
(37)
(78)
(55)
(87)
(44)
(62)
(60)
(112)
(37)
(36)
(134)
(63)
(44)
(77)
(252)
(38)
(66)
(40)
(89)
(36)
(117)
(56)
(37)
(108)
(78)
(156)
(68)
(39)
(196)
(43)
(86)
(59)
(46)
(62)
(54)
(38)
(76)
(49)
(61)
(44)
(88)
(49)
(51)
(51)
(43)
(97)
(49)
(44)
(93)
(121)
(109)
(46)
(165)
(47)
(72)
(63)
(92)
(48)
(83)
(125)
(44)
(43)
(102)
(45)
(44)
(56)
(38)
(63)
(94)
(44)
(75)
(78)
(36)
(95)
(51)
(38)
(82)
(209)
(65)
(59)
(77)
(37)
(108)
(240)
(51)
(44)
(104)
(67)
(55)
(48)
(46)
(45)
(53)
(47)
(39)
(82)
(49)
(47)
(49)
(54)
(38)
(59)
(63)
(71)
(41)
(70)
(92)
(159)
(45)
(56)
(71)
(67)
(61)
(78)
(54)
(59)
(51)
(106)
(37)
(63)
(250)
(80)
(39)
(40)
(49)
(40)
(42)
(98)
(40)
(106)
(46)
(91)
(131)
(39)
(91)
(55)
(74)
(51)
(45)
(70)
(37)
(82)
(44)
(94)
(155)
(40)
(75)
(42)
(55)
(54)
(39)
(61)
(43)
(62)
(59)
(60)
(84)
(178)
(45)
(120)
(45)
(235)
(60)
(67)
(95)
(38)
(79)
(71)
(87)
(63)
(70)
(96)
(71)
(68)
(56)
(44)
(122)
(101)
(44)
(55)
(68)
(49)
(75)
(47)
(44)
(106)
(56)
(57)
(46)
(160)
(45)
(76)
(44)
(41)
(59)
(46)
(68)
(37)
(51)
(55)
(44)
(37)
(40)
(58)
(64)
(42)
(49)
(116)
(63)
(127)
(48)
(54)
(88)
(79)
(45)
(76)
(103)
(59)
(54)
(37)
(80)
(84)
(45)
(70)
(63)
(46)
(58)
(40)
(108)
(53)
(102)
(78)
(55)
(177)
(40)
(38)
(115)
(108)
(70)
(61)
(40)
(49)
(155)
(96)
(95)
(37)
(90)
(47)
(38)
(61)
(97)
(38)
(65)
(67)
(84)
(51)
(48)
(201)
(48)
(44)
(69)
(81)
(54)
(37)
(45)
(37)
(52)
(188)
(44)
(41)
(104)
(41)
(51)
(85)
(58)
(40)
(44)
(41)
(59)
(171)
(42)
(37)
(68)
(86)
(43)
(46)
(52)
(40)
(54)
(43)
(50)
(38)
(38)
(93)
(43)
(43)
(49)
(122)
(53)
(39)
(47)
(56)
(152)
(44)
(74)
(262)
(47)
(49)
(57)
(56)
(217)
(144)
(45)
(130)
(164)
(42)
(45)
(98)
(68)
(39)
(48)
(66)
(41)
(38)
(76)
(134)
(63)
(37)
(58)
(65)
(51)
(45)
(155)
(49)
(69)
(122)
(53)
(79)
(148)
(41)
(52)
(51)
(49)
(39)
(105)
(37)
(37)
(42)
(93)
(46)
(162)
(40)
(43)
(166)
(60)
(152)
(58)
(119)
(38)
(40)
(101)
(58)
(48)
(49)
(41)
(111)
(61)
(71)
(44)
(46)
(43)
(42)
(41)
(151)
(58)
(42)
(42)
(64)
(84)
(53)
(110)
(53)
(43)
(78)
(103)
(41)
(109)
(59)
(132)
(67)
(54)
(53)
(96)
(46)
(119)
(78)
(68)
(47)
(223)
(39)
(57)
(40)
(59)
(172)
(52)
(67)
(92)
(57)
(276)
(43)
(43)
(38)
(99)
(37)
(40)
(90)
(82)
(85)
(43)
(92)
(39)
(171)
(68)
(99)
(51)
(68)
(65)
(49)
(78)
(125)
(124)
(37)
(71)
(52)
(39)
(40)
(71)
(68)
(45)
(89)
(157)
(49)
(288)
(70)
(40)
(53)
(53)
(52)
(189)
(57)
(53)
(114)
(40)
(42)
(37)
(46)
(43)
(67)
(44)
(95)
(227)
(42)
(79)
(39)
(227)
(71)
(161)
(46)
(82)
(49)
(87)
(55)
(95)
(62)
(102)
(114)
(50)
(78)
(39)
(43)
(65)
(44)
(45)
(122)
(51)
(109)
(54)
(55)
(46)
(40)
(40)
(55)
(51)
(79)
(90)
(58)
(52)
(54)
(37)
(50)
(96)
(95)
(59)
(220)
(229)
(38)
(52)
(170)
(37)
(62)
(70)
(43)
(37)
(93)
(157)
(55)
(46)
(49)
(57)
(52)
(89)
(62)
(42)
(60)
(58)
(96)
(53)
(43)
(55)
(59)
(86)
(92)
(40)
(40)
(78)
(104)
(234)
(99)
(55)
(63)
(101)
(71)
(55)
(54)
(69)
(103)
(107)
(39)
(37)
(121)
(61)
(85)
(69)
(39)
(58)
(61)
(289)
(42)
(59)
(42)
(72)
(194)
(119)
(86)
(105)
(115)
(37)
(59)
(70)
(81)
(46)
(55)
(88)
(189)
(41)
(41)
(117)
(59)
(51)
(63)
(50)
(71)
(43)
(48)
(137)
(84)
(50)
(48)
(85)
(38)
(104)
(68)
(68)
(51)
(136)
(37)
(128)
(59)
(40)
(108)
(76)
(48)
(60)
(45)
(73)
(47)
(106)
(64)
(46)
(59)
(45)
(45)
(181)
(86)
(82)
(38)
(58)
(47)
(40)
(76)
(54)
(61)
(81)
(45)
(42)
(50)
(71)
(99)
(89)
(97)
(119)
(64)
(54)
(49)
(39)
(64)
(43)
(98)
(99)
(51)
(40)
(53)
(45)
(46)
(59)
(50)
(137)
(80)
(38)
(43)
(82)
(71)
(54)
0 of 1000
(1)
(2)
(1)
(1)
(11)
(1)
(3)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(64)
(1)
(65)
(6)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(7)
(5)
(1)
(2)
(1)
(1)
(3)
(1)
(69)
(85)
(2)
(125)
(117)
(4)
(270)
(1)
(1)
(55)
(1)
(7)
(1)
(1)
(1)
(3)
(2)
(1)
(1)
(1)
(1)
(1)
(6)
(1)
(2)
(1)
(21)
(1)
(1)
(1)
(1)
(2)
(67)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(9)
(1)
(1)
(3)
(2)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(4)
(2)
(1)
(1)
(1)
(49)
(1)
(1)
(7)
(3)
(5)
(1)
(1)
(5)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(57)
(48)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(4)
(15)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(605)
(1)
(1)
(2)
(12)
(77)
(53)
(6)
(1)
(8)
(2)
(8)
(35)
(9)
(2)
(1)
(4)
(1)
(1)
(1)
(6)
(5)
(105)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(31)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(31)
(12)
(2)
(2)
(7)
(1)
(3)
(1)
(19)
(8)
(1)
(1)
(1)
(1)
(4)
(2)
(4)
(1)
(1)
(1)
(1)
(20)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(14)
(14)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(220)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(5)
(1)
(3)
(23)
(1)
(1)
(1)
(2)
(2)
(2)
(134)
(1)
(1)
(1)
(2)
(2)
(1)
(230)
(1)
(1)
(11)
(1)
(2)
(13)
(2)
(1)
(1)
(1)
(29)
(2)
(21)
(21)
(1)
(1)
(4)
(246)
(52)
(1)
(1)
(1)
(217)
(1)
(1)
(1)
(1)
(2)
(1)
(5)
(3)
(1)
(1)
(228)
(49)
(53)
(1)
(210)
(1)
(187)
(2)
(184)
(47)
(47)
(1)
(1)
(4)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(35)
(2)
(1)
(4)
(1)
(1)
(1)
(1)
(1)
(2)
(3)
(1)
(1)
(1)
(15)
(1)
(1)
(1)
(1)
(6)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(53)
(1)
(1)
(3)
(14)
(8)
(1)
(1)
(1)
(1)
(1)
(1)
(8934)
(2)
(1)
(4)
(18)
(1)
(1)
(47)
(8)
(8)
(2)
(3)
(1)
(1)
(1)
(35)
(3)
(1)
(234)
(2)
(1)
(1)
(2)
(2)
(1)
(1)
(1)
(1)
(6)
(22)
(23)
(3)
(9)
(1)
(1)
(1)
(7)
(1)
(1)
(1)
(1)
(315)
(2)
(739)
(1)
(2)
(2)
(1)
(1)
(1)
(8)
(1)
(3)
(19)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(110)
(1)
(2)
(36)
(2)
(1)
(4)
(6)
(1)
(4)
(124)
(13)
(3)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(17)
(1)
(2)
(1)
(1)
(1)
(7)
(7)
(1)
(1)
(33)
(59)
(18)
(77)
(29)
(1)
(9)
(1)
(1)
(24)
(3)
(2)
(1)
(1)
(1)
(16)
(24)
(1)
(1)
(186)
(211)
(30)
(30)
(32)
(1)
(65)
(1)
(62)
(3)
(4)
(3)
(1)
(1)
(6)
(10)
(4)
(1)
(1)
(10)
(1)
(1)
(1)
(27)
(3)
(3)
(11)
(52)
(52)
(52)
(1)
(1)
(1)
(1)
(1)
(150)
(41)
(38)
(8)
(1)
(8)
(2)
(1)
(1)
(5)
(1)
(1)
(1)
(8)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(1)
(6)
(3)
(3)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(3)
(1)
(25)
(1)
(5)
(21)
(1)
(3)
(13)
(15)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(1)
(1)
(48)
(1)
(4)
(1)
(4)
(1)
(1125)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(9)
(1)
(3)
(1)
(1)
(4)
(2)
(1)
(1)
(1)
(1)
(1)
(40)
(7)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(12)
(1)
(4)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(3)
(1)
(20)
(1)
(1)
(10)
(2)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(38)
(94)
(1)
(283)
(1)
(1)
(1)
(4)
(5)
(1)
(1)
(1)
(1)
(2)
(3)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(84)
(7)
(1)
(19)
(4)
(1)
(2)
(1)
(1)
(1)
(1)
(14)
(7)
(1)
(2)
(715)
(127)
(49)
(47)
(2)
(1)
(1)
(1)
(2)
(1)
(34)
(34)
(1)
(34)
(12)
(106)
(1)
(106)
(2)
(14)
(2)
(2)
(5)
(1)
(1)
(1)
(1)
(1)
(45)
(45)
(1)
(1)
0 of 750
(1)
(205)
(21)
(1)
(114)
(129)
(679)
(92)
(186)
(66)
(1)
(185)
(1)
(8)
(168)
(2485)
(1015)
(12)
(1)
(62)
(77)
(5)
(256)
(1)
(866)
(2)
(1)
(1)
(123)
(1)
(1523)
(667)
(2372)
(260)
(1)
(8015)
(478)
(1)
(3198)
(6)
(206)
(355)
(33)
(1668)
(237)
(170)
(3)
(21)
(81)
(5307)
(1)
(1)
(1)
(5)
(51)
(116)
(4)
(27)
(96)
(2)
(1040)
(5)
(27)
(13)
(1)
(727)
(5)
(4)
(850)
(3)
(29)
(1735)
(2)
(11)
(65)
(2052)
(7)
(5)
(688)
(10)
(1)
(1)
(237)
(46)
(13)
(139)
(3)
(1)
(2)
(1)
(1182)
(6)
(2)
(1)
(5)
(3956)
(1932)
(64)
(428)
(775)
(269)
(15)
(413)
(7)
(309)
(602)
(530)
(2)
(1125)
(12)
(384)
(8)
(49)
(1246)
(1)
(205)
(37)
(99)
(1)
0 of 119
(2)
(2)
(2)
(2)
(2)
(4)
(590)
(1)
(2)
(5)
(4)
(2)
(2)
(6)
(1)
(4)
(8)
(4)
(35)
(4)
(2)
(2)
(109)
(4)
(910)
(3)
(3)
(3)
(3)
(19)
(4)
(6)
(3)
(422)
(7)
(7)
(3)
(2)
(3)
(4)
(3)
(2)
(2)
(3)
(2)
(77)
(2)
(2)
(68)
(2)
(2)
(2)
(2)
(185)
(4)
(2)
(19)
(2)
(2)
(4)
(2)
(36)
(2)
(28)
(2)
(4)
(229)
(2)
(2)
(2)
(2)
(2)
(29)
(2)
(20)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(39)
(1)
(28)
(2)
(2)
(2)
(3)
(2)
(2)
(3)
(2)
(57)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(860)
(12)
(2)
(2)
(2)
(2)
(2)
(2)
(1)
(2)
(2)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(4)
(1)
(1)
(5)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(2)
(1)
(3)
(1)
(1)
(4)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(3)
(4)
(7)
(7)
(1)
(2)
(13)
(4)
(1)
(1)
(6)
(9)
(3)
(3)
(1)
(1)
(1)
(1)
(2)
(2)
(8)
(7)
(2)
(2)
(1)
(6)
(2)
(2)
(3)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(6)
(5)
(1)
(1)
(3)
(2)
(2)
(4)
(13)
(2)
(1)
(3)
(3)
(1)
(6)
(9)
(1)
(5)
(1)
(12)
(2)
(7)
(2)
(1)
(1)
(175)
(32)
(1)
(2)
(1)
(6)
(1)
(3)
(1)
(1)
(2)
(1)
(13)
(1)
(3)
(6)
(1)
(1)
(7)
(4)
(22)
(3)
(7)
(2)
(1)
(7)
(9)
(41)
(9)
(6)
(12)
(6)
(19)
(2)
(4)
(5)
(8)
(1)
(4)
(33)
(5)
(3)
(1)
(1)
(3)
(1)
(25)
(12)
(3)
(8)
(3)
(7)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(7)
(1)
(1)
(2)
(4)
(1)
(1)
(7)
(1)
(1)
(2)
(4)
(1)
(6)
(1)
(1)
(5)
(1)
(2)
(15)
(2)
(2)
(2)
(4)
(10)
(2)
(1)
(4)
(2)
(1)
(1)
(1)
(3)
(1)
(1)
(9)
(1)
(6)
(7)
(18)
(1)
(1)
(6)
(2)
(3)
(4)
(3)
(3)
(2)
(3)
(1)
(2)
(3)
(1)
(2)
(3)
(1)
(2)
(1)
(1)
(1)
(3)
(1)
(3)
(1)
(1)
(2)
(1)
(2)
(6)
(8)
(5)
(8)
(1)
(1)
(1)
(19)
(3)
(3)
(7)
(6)
(3)
(4)
(7)
(1)
(3)
(1)
(4)
(4)
(2)
(3)
(1)
(2)
(15)
(1)
(3)
(1)
(3)
(3)
(4)
(4)
(1)
(3)
(2)
(3)
(3)
(7)
(1)
(1)
(32)
(2)
(5)
(3)
(3)
(27)
(20)
(1)
(1)
(3)
(5)
(1)
(2)
(1)
(1)
(1)
(1)
(5)
(4)
(1)
(7)
(1)
(64)
(1)
(44)
(34)
(7)
(14)
(1)
(3)
(11)
(30)
(8)
(7)
(3)
(5)
(1)
(39)
(1)
(33)
(1)
(110)
(4)
(1)
(3)
(1)
(12)
(3)
(32)
(1)
(1)
(10)
(1)
(9)
(1)
(16)
(41)
(1)
(14)
(1)
(2)
(39)
(1)
(5)
(3)
(2)
(1)
(8)
(22)
(84)
(3)
(1)
(1)
(1)
(17)
(26)
(3)
(7)
(4)
(2)
(2)
(6)
(5)
(4)
(1)
(17)
(10)
(15)
(5)
(4)
(12)
(3)
(6)
(1)
(1)
(1)
(3)
(4)
(2)
(5)
(5)
(11)
(6)
(49)
(10)
(21)
(5)
(1)
(55)
(8)
(3)
(6)
(9)
(33)
(2)
(19)
(8)
(2)
(1)
(24)
(26)
(36)
(1)
(8)
(1)
(1)
(3)
(3)
(11)
(12)
(2)
(1)
(3)
(6)
(5)
(2)
(5)
(3)
(2)
(8)
(4)
(13)
(7)
(2)
(3)
(6)
(2)
(8)
(3)
(29)
(15)
(6)
(2)
(4)
(5)
(3)
(10)
(7)
(12)
(10)
(3)
(2)
(2)
(9)
(2)
(5)
(2)
(3)
(2)
(3)
(4)
(3)
(4)
(11)
(3)
(10)
(3)
(3)
(3)
(3)
(2)
(5)
(3)
(2)
(6)
(3)
(4)
(8)
(5)
(13)
(2)
(2)
(6)
(8)
(6)
(2)
(3)
(2)
(3)
(3)
(7)
(8)
(3)
(2)
(3)
(3)
(2)
(2)
(64)
(11)
(4)
(2)
(15)
(23)
(2)
(10)
(4)
(4)
(24)
(7)
(70)
(2)
(16)
(11)
(17)
(47)
(36)
(9)
(5)
(4)
(2)
(2)
(3)
(3)
(3)
(2)
(2)
(8)
(19)
(14)
(2)
(9)
(3)
(7)
(2)
(4)
(10)
(4)
(8)
(7)
(7)
(3)
(2)
(3)
(4)
(3)
(3)
(2)
(4)
(6)
(40)
(4)
(3)
(6)
(4)
(13)
(11)
(5)
(2)
(2)
(3)
(4)
(2)
(17)
(2)
(3)
(2)
(2)
(44)
(11)
(5)
(16)
(37)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(7)
(2)
(2)
(3)
(8)
(16)
(2)
(2)
(2)
(6)
(3)
(14)
(2)
(3)
(4)
(5)
(2)
(2)
(2)
(2)
(3)
(3)
(2)
(5)
(60)
(2)
(10)
(5)
(4)
(3)
(6)
(2)
(3)
(2)
(3)
(2)
(4)
(9)
(4)
(9)
(7)
(2)
(10)
(3)
(6)
(2)
(6)
(16)
(2)
(4)
(16)
(2)
(10)
(2)
(2)
(3)
(14)
(23)
(55)
(6)
(2)
(5)
(153)
(3)
(3)
(12)
(24)
(9)
(2)
(3)
(3)
(61)
(47)
(6)
(9)
(7)
(2)
(9)
(5)
(9)
(2)
(4)
(7)
(4)
(6)
(2)
(2)
(8)
(3)
(15)
(7)
(3)
(48)
(23)
(30)
(5)
(8)
(54)
(2)
(3)
(17)
(3)
(9)
(27)
(6)
(12)
(9)
(2)
(3)
(9)
(7)
(2)
(29)
(9)
(40)
(1)
(2)
(4)
(2)
(2)
(1)
(5)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(5)
(1)
(1)
(3)
(1)
(4)
(1)
(2)
(2)
(3)
(3)
(1)
(1)
(3)
(1)
(1)
(1)
(7)
(1)
(20)
(1)
(8)
(2)
(11)
(8)
(1)
(1)
(1)
(4)
(1)
(1)
(7)
(1)
(1)
(8)
(1)
(2)
(1)
(1)
(2)
(14)
(1)
(1)
(2)
(20)
(7)
(2)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(1)
(1)
(3)
(1)
(1)
(2)
(11)
(1)
(1)
(3)
(1)
(1)
(1)
(1)
(1)
(2)
(2)
(1)
(2)
(1)
(3)
(2)
(1)
(8)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(2)
(1)
(1)
(3)
(1)
(1)
(3)
(2)
(1)
(1)
(1)
(2)
(6)
(2)
(1)
(1)
(1)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(1)
(1)
(2)
(1)
(3)
(2)
(1)
(1)
(3)
(1)
(1)
(3)
(3)
(3)
(7)
(1)
(2)
(1)
(2)
(2)
(2)
(2)
(2)
(2)
(10)
(2)
(6)
(2)
(4)
(2)
(3)
(3)
(4)
(2)
(12)
(2)
(2)
(2)
(3)
(19)
(3)
(4)
(6)
(15)
(5)
(10)
(3)
(5)
(4)
(30)
(2)
(5)
(3)
(2)
(6)
(6)
(3)
(2)
(3)
(4)
(5)
(2)
(4)
(3)
(4)
(30)
(2)
(5)
(23)
(18)
(4)
(2)
(5)
(3)
(8)
(2)
(5)
(2)
(4)
(19)
(3)
0 of 1000
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(12)
(2)
(3)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(6)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(11)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(4)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(11)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(3)
(3)
(10)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(4)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(5)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(4)
(5)
(3)
(3)
(3)
(4)
(3)
(4)
(3)
(3)
(4)
(4)
(4)
(3104)
0 of 1000
(2716)
(2)
(24)
(30)
(1)
(4)
(1)
(2521)
(1)
(1)
(118)
(16)
(4)
(28)
(5)
(56)
(142)
(372)
(76)
(261)
(89)
(98)
(557)
(236)
(2)
(3)
(4)
(1)
(7)
(514)
(1294)
(10)
(1)
(2)
(1)
(8)
(4)
(2992)
(2183)
(7)
(1)
(13)
(7)
(8)
(176)
(204)
(3)
(2)
(4)
(181)
(1)
(587)
(1)
(2)
(43)
(946)
(18)
(2)
(765)
(1)
(1)
(7)
(69)
(43)
(138)
(14)
(659)
(542)
(26)
(143)
(85)
(39)
(48)
(61)
(15)
(44)
(25)
(7)
(1716)
(136)
(1)
(4)
(2)
(1)
(374)
(1)
(497)
(8)
(5)
(18)
(3)
(33)
(3)
(1)
(147)
(5)
(68)
(5)
(193)
(19)
0 of 100
(1)
(4)
(1)
(4)
(5)
(17)
(111)
(15)
(21)
(269)
(23)
(13)
(3)
(397)
(427)
(6)
(35)
(6)
(1)
(3)
(2)
(4)
(2)
(5)
(2)
(1)
(11)
(4)
(79)
(36)
(9)
(41)
(3)
(3)
(8)
(4)
(16)
(17)
(5)
(1)
(3)
(5)
(6)
(9)
(72)
(2)
(21)
(1)
(1)
(2)
(20)
(44)
(30)
(35)
(92)
(21)
(22)
(46)
(18)
(112)
(3)
(18)
(9)
(13)
(4)
(11)
(1)
(10)
(38)
(2)
(3)
(9)
(17)
(10)
(24)
(1)
(11)
(9)
(24)
(2)
(10)
0 of 81
(456)
(7)
(3)
(14)
(173)
(1)
(887)
(392)
(40)
(2812)
(618)
(1)
(2)
(239)
(44)
(100)
(121)
(55)
(281)
(7)
(103)
(1)
(207)
(2)
(19)
(110)
(1)
(96)
(1)
(100)
(824)
(160)
(215)
(218)
(229)
(3)
(1)
(258)
(1)
(41)
(15)
(30)
(4)
(75)
(3)
(511)
(44)
(27)
(74)
(113)
(35)
0 of 51
(1)
(645)
(5714)
(1)
(6)
(6)
(301)
(19)
(2)
(2)
(208)
(38)
(1750)
(16)
(2)
(1739)
(78)
(4)
(36)
(143)
(1)
(5)
(3)
(35)
(1)
(890)
(16)
(5926)
(1)
(406)
(1)
(16)
(2)
(4)
(10)
(400)
(1)
(1)
(2)
(1274)
(8)
(713)
(1)
(8409)
(3410)
(294)
(1761)
(1)
(4)
(1010)
(82)
(1)
(35)
(1)
(190)
(1)
(189)
(2)
(23)
(2)
(5)
(1)
(282)
(281)
(5)
(34070)
(2)
(15)
(299)
(28)
(2)
(5)
(1)
(4)
(2)
(3)
(4)
(18)
(4)
(6)
(1015)
(6)
(1)
(913)
(87)
(820)
(2)
(407)
(4)
(3)
(133)
(4)
(12)
(1)
(2)
(1)
(63)
(5)
(6765)
(42)
(3)
(5817)
(114)
(1)
(13)
(238)
(1)
(54)
(1)
(3)
(4)
(2)
(16)
(14)
(422)
(289)
(1)
(330)
(293)
(31)
(17)
(174)
(2)
(72)
(1)
0 of 125
(3058)
(917)
(3726)
(343)
(450)
(354)
(835)
(3807)
(139)
(526)
(659)
(228)
(309)
(1504)
(1268)
(1019)
(540)
(635)
(269)
(451)
(1272)
(613)
(311)
(1661)
(505)
(246)
(370)
(730)
(2354)
(138)
(1042)
(144)
(411)
(370)
(376)
(306)
(605)
(532)
(233)
(1336)
(232)
(209)
(640)
(170)
(1004)
(146)
(297)
(187)
(139)
(195)
(160)
(429)
(228)
(252)
(161)
(358)
(324)
(352)
(205)
(368)
(472)
(1187)
(411)
(1077)
(176)
(222)
(247)
(254)
(1387)
(145)
(1895)
(652)
(202)
(150)
(231)
(151)
(242)
(296)
(148)
(381)
(236)
(157)
(156)
(146)
(176)
(522)
(189)
(501)
(166)
(1356)
(211)
(183)
(154)
(309)
(146)
(165)
(151)
(209)
(1008)
(341)
(150)
(502)
(187)
(248)
(144)
(1206)
(158)
(147)
(1274)
(277)
(138)
(159)
(156)
(241)
(140)
(140)
(237)
(195)
(297)
(255)
(612)
(184)
(167)
(1398)
(513)
(217)
(178)
(140)
(171)
(462)
(347)
(1038)
(186)
(456)
(264)
(294)
(422)
(594)
(404)
(177)
(356)
(159)
(485)
(257)
(413)
(534)
(200)
(141)
(143)
(376)
(674)
(198)
(539)
(319)
(386)
(196)
(212)
(695)
(383)
(230)
(259)
(301)
(1264)
(266)
(184)
(248)
(171)
(142)
(164)
(139)
(170)
(179)
(353)
(514)
(1340)
(183)
(151)
(248)
(149)
(459)
(403)
(289)
(740)
(154)
(162)
(207)
(147)
(349)
(234)
(329)
(235)
(241)
(1455)
(556)
(1443)
(294)
(303)
(1645)
(251)
(709)
(141)
(865)
(381)
(1283)
(151)
(157)
(189)
(511)
(430)
(197)
(208)
(341)
(255)
(143)
(248)
(262)
(182)
(145)
(166)
(170)
(1293)
(605)
(184)
(367)
(152)
(159)
(263)
(320)
(245)
(146)
(163)
(407)
(158)
(263)
(759)
(178)
(224)
(151)
(151)
(630)
(297)
(252)
(627)
(412)
(257)
(600)
(231)
(1088)
(461)
(562)
(228)
(162)
(530)
(1122)
(1945)
(172)
(446)
(228)
(212)
(242)
(238)
(266)
(922)
(230)
(207)
(503)
(181)
(193)
(165)
(150)
(790)
(293)
(182)
(147)
(390)
(292)
(283)
(962)
(316)
(396)
(167)
(831)
(539)
(417)
(269)
(252)
(255)
(774)
(206)
(144)
(188)
(170)
(176)
(200)
(4741)
(225)
(887)
(909)
(643)
(539)
(202)
(382)
(311)
(306)
(320)
(2117)
(203)
(292)
(170)
(238)
(220)
(2582)
(3845)
(1020)
(820)
(1346)
(176)
(2013)
(154)
(200)
(206)
(149)
(235)
(259)
(561)
(669)
(1775)
(667)
(1279)
(535)
(325)
(208)
(676)
(495)
(238)
(897)
(373)
(221)
(222)
(204)
(670)
(210)
(251)
(192)
(254)
(145)
(142)
(173)
(169)
(358)
(239)
(192)
(158)
(202)
(407)
(396)
(169)
(531)
(310)
(203)
(739)
(334)
(159)
(383)
(233)
(422)
(165)
(360)
(265)
(400)
(306)
(251)
(188)
(189)
(312)
(230)
(1053)
(773)
(184)
(159)
(195)
(377)
(217)
(1795)
(488)
(491)
(617)
(437)
(1096)
(1299)
(343)
(387)
(256)
(177)
(790)
(502)
(218)
(381)
(668)
(140)
(288)
(971)
(218)
(220)
(566)
(197)
(286)
(295)
(215)
(157)
(172)
(512)
(301)
(206)
(175)
(315)
(154)
(198)
(174)
(279)
(244)
(476)
(160)
(200)
(199)
(164)
(245)
(4695)
(214)
(153)
(156)
(226)
(194)
(227)
(428)
(204)
(578)
(142)
(248)
(442)
(215)
(358)
(473)
(506)
(159)
(188)
(202)
(262)
(171)
(252)
(950)
(215)
(181)
(195)
(307)
(180)
(395)
(444)
(150)
(216)
(316)
(565)
(406)
(349)
(655)
(151)
(7044)
(4695)
(2133)
(297)
(564)
(427)
(169)
(184)
(248)
(282)
(307)
(596)
(169)
(138)
(223)
(2391)
(323)
(1058)
(160)
(816)
(418)
(321)
(157)
(313)
(228)
(247)
(141)
(207)
(158)
(213)
(139)
(167)
(162)
(278)
(254)
(295)
(156)
(754)
(516)
(436)
(780)
(1115)
(256)
(675)
(658)
(161)
(231)
(158)
(445)
(242)
(284)
(213)
(385)
(351)
(267)
(292)
(275)
(144)
(163)
(284)
(148)
(256)
(1140)
(256)
(391)
(180)
(148)
(257)
(310)
(162)
(465)
(539)
(201)
(524)
(170)
(267)
(255)
(147)
(212)
(197)
(256)
(2623)
(230)
(186)
(888)
(147)
(373)
(283)
(270)
(235)
(181)
(165)
(622)
(149)
(140)
(154)
(175)
(174)
(606)
(239)
(165)
(140)
(159)
(542)
(308)
(168)
(167)
(929)
(175)
(178)
(772)
(630)
(2586)
(225)
(996)
(160)
(2420)
(190)
(232)
(166)
(534)
(538)
(419)
(443)
(362)
(154)
(1054)
(1105)
(284)
(340)
(540)
(184)
(487)
(799)
(971)
(281)
(146)
(159)
(245)
(468)
(925)
(1528)
(756)
(272)
(456)
(142)
(319)
(347)
(1279)
(193)
(211)
(192)
(163)
(306)
(291)
(175)
(5912)
(793)
(163)
(1476)
(2180)
(1706)
(706)
(1626)
(154)
(692)
(198)
(237)
(693)
(511)
(348)
(185)
(356)
(205)
(797)
(560)
(155)
(360)
(681)
(666)
(3600)
(1958)
(1796)
(606)
(287)
(234)
(779)
(173)
(202)
(152)
(1288)
(192)
(396)
(464)
(326)
(259)
(139)
(138)
(334)
(207)
(510)
(297)
(172)
(337)
(151)
(647)
(197)
(147)
(432)
(603)
(783)
(1072)
(1668)
(368)
(441)
(468)
(567)
(342)
(153)
(147)
(212)
(180)
(168)
(176)
(165)
(382)
(139)
(330)
(788)
(244)
(139)
(2238)
(206)
(160)
(205)
(333)
(141)
(251)
(167)
(182)
(795)
(1882)
(254)
(936)
(770)
(395)
(258)
(203)
(146)
(141)
(160)
(198)
(403)
(161)
(180)
(451)
(264)
(178)
(284)
(640)
(359)
(217)
(286)
(501)
(206)
(145)
(297)
(595)
(192)
(153)
(288)
(158)
(200)
(235)
(334)
(212)
(151)
(149)
(268)
(888)
(158)
(795)
(489)
(214)
(251)
(205)
(157)
(321)
(890)
(1260)
(197)
(262)
(477)
(689)
(338)
(345)
(222)
(197)
(399)
(372)
(172)
(179)
(193)
(403)
(349)
(283)
(438)
(872)
(597)
(808)
(339)
(820)
(2764)
(190)
(141)
(150)
(456)
(284)
(152)
(886)
(238)
(1381)
(755)
(509)
(207)
(331)
(265)
(242)
(217)
(420)
(435)
(181)
(274)
(259)
(139)
(274)
(177)
(187)
(863)
(424)
(453)
(935)
(240)
(156)
(346)
(202)
(1076)
(500)
(749)
(2984)
(393)
(152)
(213)
(193)
(200)
(755)
(2266)
(3410)
(257)
(489)
(2350)
(256)
(171)
(154)
(241)
(372)
(234)
(177)
(1045)
(182)
(210)
(195)
(2895)
(310)
(2135)
(3340)
(1486)
(159)
(2410)
(1328)
(1082)
(215)
(1102)
(358)
(805)
(1383)
(448)
(348)
(325)
(1464)
(310)
(745)
(192)
(146)
(142)
(309)
(414)
(616)
(199)
(233)
(164)
(232)
(210)
(860)
(219)
(352)
(449)
(325)
(257)
(303)
(254)
(339)
(713)
(414)
(147)
(218)
(263)
(226)
(194)
(240)
(177)
(298)
(580)
(201)
(629)
(484)
(246)
(589)
(209)
(327)
(696)
(3487)
(1124)
(298)
(934)
(198)
(193)
(139)
(1813)
(156)
(1276)
(489)
(258)
(305)
(238)
(157)
(258)
(262)
(144)
(139)
(285)
(475)
(886)
(415)
(353)
(207)
(152)
(290)
(138)
(1270)
(633)
(625)
(3804)
(286)
(210)
(3633)
(928)
(329)
(459)
(593)
(244)
(433)
(160)
(452)
(1676)
(733)
(613)
(311)
(468)
(144)
(412)
(151)
(1270)
(240)
(199)
(904)
(208)
(375)
(245)
(318)
(163)
(146)
(178)
(183)
(265)
(233)
(222)
(159)
(139)
(179)
(224)
(184)
(314)
(336)
(162)
(2993)
(1921)
(1555)
(144)
(3037)
(255)
(1869)
(236)
(1775)
(3135)
(2060)
(2126)
(180)
(914)
(4163)
(946)
(371)
(196)
(472)
(173)
(506)
(1577)
(247)
(169)
(431)
(308)
(623)
(586)
(336)
0 of 1000
(1)
(1)
(1)
0 of 3
Showing 881 - 900 of 83319 results
  • Shiftwork and LeisureTime Physical Inactivity LTPI Among US Workers
    Shiftwork and Leisure-Time Physical Inactivity (LTPI) Among U.S. Workers
    Fekedulegn D ;
    Gu JK
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Physical inactivity may exacerbate the adverse health effects associated with shift work. We investigated the association of shift work with leisure-time physical inactivity (LTPI). A cross-sectional analysis included 33 983 adults from National Health Interview Survey who self-reported their work schedule and leisure-time physical activity. Partic ...
    Public Domain
  • Safe Desktop Vat Photopolymerization 3D Printing
    Safe Desktop Vat Photopolymerization 3-D Printing
    National Institute for Occupational Safety and Health
    2025/01/01 | NIOSH Infographics
    Use the steps in this infographic to safely perform vat photopolymerization 3-D printing.
    Public Domain
  • Too Soon to Breathe Easy Trends in Asbestosis Morbidity and Mortality in Wisconsin
    Too Soon to Breathe Easy: Trends in Asbestosis Morbidity and Mortality in Wisconsin
    Creswell, Paul D. ;
    Mccoy, Katherine E.
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objectives: This study aimed to describe asbestosis morbidity and mortality in two statewide samples. We considered trends, demographic disparities, and excess mortality. Methods: We assessed trends and demographic differences in asbestosis morbidity using hospital and emergency department (ED) visits. We calculated asbestosis mortality rates using ...
  • Accuracy of Automatically Identifying the American Conference of Governmental Industrial Hygienists Threshold Limit Values Twelve Lifting Zones over Three Simplified Zones Using Computer Algorithm
    Accuracy of Automatically Identifying the American Conference of Governmental Industrial Hygienists Threshold Limit Values Twelve Lifting Zones over Three Simplified Zones Using Computer Algorithm
    Barim MS ;
    Feng S
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    The American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Values (TLVs) for lifting provides risk zones for assessing two-handed lifting tasks. This paper describes two computational models for identifying the lifting risk zones using gyroscope information from five inertial measurement units (IMUs) attached to the lifte ...
    Public Domain
  • NIOSH Science Policy Update Individual FitTesting Recommendation for Hearing Protection Devices 2025
    NIOSH Science Policy Update: Individual Fit-Testing Recommendation for Hearing Protection Devices [2025]
    National Institute for Occupational Safety and Health
    2025/01/01 | NIOSH Numbered Publications
    This National Institute for Occupational Safety and Health (NIOSH) policy update for determining the attenuation of hearing protection devices "Individual Fit-Testing Recommendation for Hearing Protection Devices" supersedes the hearing protector derating guidance contained in Chapter 1 (Section 1.5) and Chapter 6 of NIOSH's 1998 Criteria for a Rec ...
    Supporting Files Public Domain
  • Career Firefighter Killed in a Structural Collapse While Conducting Fire Attack and Search in a Derelict SingleFamily Residence Missouri
    Career Firefighter Killed in a Structural Collapse While Conducting Fire Attack and Search in a Derelict Single-Family Residence - Missouri
    Miles, Stephen T. ;
    Richardson, Michael
    2025/01/01 | Fire Fighter Fatality Investigation and Prevention Program (FFFIPP)
    On January 13, 2022, a 33-year-old career firefighter assigned to Truck 13 (T-13) died while conducting fire suppression activities in a derelict single-family residential structure. Prior to the fire being reported, T-13 was out of quarters and noticed a large column of smoke. While enroute to investigate the origin of the smoke, a still alarm was ...
    Public Domain
  • Industrial Silo Fire and Subsequent Explosion Kills One Firefighter and Critically Injures Another Iowa
    Industrial Silo Fire and Subsequent Explosion Kills One Firefighter and Critically Injures Another - Iowa
    Attwood WR
    2025/01/01 | Fire Fighter Fatality Investigation and Prevention Program (FFFIPP)
    On January 5, 2019, an industrial silo fire and subsequent explosion killed a 33-year-old lieutenant and critically injured a 23-year-old firefighter. At 05:46 hours, Battalion 1 (B1), Ladder 54 (L54), Ladder 59 (L59), Engine 46 (E46), Ambulance 1 (A1), and Ambulance 2 (A2) were dispatched to a reported fire in the "germ pit" area of silo #2 at a c ...
    Public Domain
  • Feel the Burn Heal the Burn Job Crafting and Burnout Among Occupational Therapy Professionals
    Feel the Burn, Heal the Burn: Job Crafting and Burnout Among Occupational Therapy Professionals
    del Pozo E ;
    Fisher G
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Importance: Burnout is common among occupational therapy professionals and associated with poor health and well-being, absenteeism, turnover, and exit from the profession. This study identified specific job titles, job characteristics, and resources related to burnout. Objective: To identify specific aspects of occupational therapy jobs related to ...
  • The Occurrence and Persistence of Surface Water Contaminants Across Different Landscapes
    The Occurrence and Persistence of Surface Water Contaminants Across Different Landscapes
    Agouridis C ;
    Barton C
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Surface water contaminants, including both conventional contaminants (e.g., nutrients, trace elements) and emerging contaminants (e.g., pesticides, pharmaceuticals) are heavily influenced by urban and rural land use practices. The goal of the study was to characterize the influence of watershed land use practices on surface water quality. Specific ...
  • Development and Internal Validation of a Clinical and Genetic Risk Score for Rheumatoid ArthritisAssociated Interstitial Lung Disease
    Development and Internal Validation of a Clinical and Genetic Risk Score for Rheumatoid Arthritis-Associated Interstitial Lung Disease
    Ascherman DP ;
    Baker JF
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: Although clinical and genetic risk factors have been identified for rheumatoid arthritis-associated interstitial lung disease (RA-ILD), there are no current tools allowing for risk stratification. We sought to develop and validate an ILD risk model in a large, multicentre, prospective RA cohort. Methods: Participants in the Veterans Affa ...
  • Virtual Reality Training to Reduce Workplace Violence in Healthcare
    Virtual Reality Training to Reduce Workplace Violence in Healthcare
    Clay CJ ;
    Hochmuth JM
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Violence against nurses and other healthcare workers is a significant and escalating concern, impeding the provision of safe and effective healthcare services. A majority of nurses experience some kind of violence, including physical and nonphysical assaults during their careers. The consequences of workplace violence extend beyond individual traum ...
    Public Domain
  • Prevalence of COVID19 and Long COVID by Industry and Occupation Behavioral Risk Factor Surveillance System 2022
    Prevalence of COVID-19 and Long COVID by Industry and Occupation: Behavioral Risk Factor Surveillance System 2022
    Ford ND ;
    Li J
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Background: Workers in healthcare and other essential occupations had elevated risks for COVID-19 infection early in the pandemic. No survey of U.S. workers to date has comprehensively assessed the prevalence of both COVID-19 and Long COVID across industries and occupations (I&O) at a detailed level. Methods: Behavioral Risk Factor Surveillance Sys ...
    Public Domain
  • Film Dosimetry for Occupant Exposure Monitoring Within FarUVC Installations
    Film Dosimetry for Occupant Exposure Monitoring Within Far-UVC Installations
    Brenner DJ ;
    Erde S
    2025/01/01 | National Institute for Occupational Safety and Health (NIOSH)
    Far-UVC radiation between 200 and 230 nm is a promising technology for reducing airborne disease transmission. Previous work with far-UVC lamps has demonstrated the efficacy of far-UVC radiation to inactivate bacteria and viruses while presenting minimal human health hazards. While far-UVC intentionally exposes the occupied space, effectively disin ...
  • Occupational Injuries and Workplace Violence chapter 2025
    Occupational Injuries and Workplace Violence [chapter, 2025]
    Castillo, Dawn N. ;
    Pizzatella, Timothy J.
    2025/01/01 | International encyclopedia of public health, third edition. Quah SR ed. San Diego, CA: Academic Press, 2025 Jan; 5:713-727 | National Institute for Occupational Safety and Health (NIOSH)
    Occupational injuries and workplace violence, a subset of occupational injuries, are defined and discussed in terms of their nature, scope and importance as public health problems. The public health approach to injury prevention is described, and distinctions and commonalities between occupational and non-occupational injuries are presented. Also d ...
    Public Domain
  • Assessment of Dermal Sensitization by Nickel Salts in a Novel Humanized TLR4 Mouse Model
    Assessment of Dermal Sensitization by Nickel Salts in a Novel Humanized TLR-4 Mouse Model
    Aldinger, Jeffrey A. ;
    Anderson, Stacey E.
    2024/12/31 | National Institute for Occupational Safety and Health (NIOSH)
    The fundamental goal of this study was to determine the potential utility of a novel humanized Toll-like receptor-4 (hTLR-4) mouse model for future in vivo studies of nickel allergy. First, mice of both sexes and hTLR-4 expression profiles were incorporated into a Local Lymph Node Assay (LLNA) to assess skin sensitization. Next, a set of hTLR-4 hTL ...
    Public Domain
  • Trends and Disparities in Fatal Occupational Injury in North Carolina
    Trends and Disparities in Fatal Occupational Injury in North Carolina
    Richardson DB
    2024/12/31 | Grant Final Reports
    The general overarching objective of this work was to strengthen our understanding of trends in fatal occupational injury rates in North Carolina. Building upon a highly successful parent study, we were generate a 40-year times series of fatal occupational injuries in North Carolina, to complete three Goals (Specific Aims): Aim 1: Injury trends and ...
  • Introducing the Impact WellbeingTM Guide Taking Action to Improve Health Care Worker WellBeing
    Introducing the Impact Wellbeing{TM} Guide: Taking Action to Improve Health Care Worker Well-Being
    Howard J ;
    Novicki, Emily
    2024/12/31 | National Institute for Occupational Safety and Health (NIOSH)
    Our work environments have a significant impact on our well-being. Stress, strain, or interpersonal challenges for workers can cause both physical and psychological impacts, including burnout (Schulte et al., 2024). It is well known that burnout has been an ongoing crisis in health care, reaching peak levels during the COVID- 19 pandemic. A study o ...
    Public Domain
  • Effects of Inhaled Tier-2 Diesel Engine Exhaust on Immunotoxicity in a Rat Model: A Hazard Identification Study. Part III. Immunotoxicology (Dataset)
    Anderson, Stacey E. ;
    Baur R
    2024/12/27 | NIOSH Data | ZIP folder
    Health Effects Laboratory Divsion (HELD). Allergy and Clinical Immunology Branch (ACIB)
    Download the Dataset decsribed here from Data.cdc.gov at https://doi.org/10.26616/NIOSHRD-1107-2024-0.Diesel exhaust (DE) is an air pollutant containing gaseous compounds and particulate matter. Diesel engines are common on gas extraction and oil sites, leading to complex DE exposure to a broad range of compounds through occupational settings. The ...
    Dataset Public Domain
  • Release of Crystalline Silica Nanoparticles During Engineered Stone Fabrication
    Release of Crystalline Silica Nanoparticles During Engineered Stone Fabrication
    Dozier, Alan K. ;
    Ku BK
    2024/12/24 | National Institute for Occupational Safety and Health (NIOSH)
    Inhalation exposure to respirable crystalline silica (RCS) during the fabrication of engineered stone-based kitchen countertops has been on the rise in recent years and has become a significant occupational health problem in the United States and globally. Little is known about the presence of nanocrystalline silica (NCS), i.e., particles below 100 ...
    Public Domain
  • Vaccine Intention Uptake and Hesitancy Among US Certified Food Producers The National COVID19 Organic Farmer Study
    Vaccine Intention, Uptake, and Hesitancy Among US Certified Food Producers: The National COVID-19 Organic Farmer Study
    Ji M ;
    Soto Mas F
    2024/12/23 | National Institute for Occupational Safety and Health (NIOSH)
    Objective: To estimate COVID-19 vaccine intention, uptake, and hesitancy among essential workers. Methods: A cross-sectional survey of USDA-certified organic producers. An electronic survey was used for data collection. Analyses included descriptive statistics, x2 tests, and ordinal logistic regressions. Results: The dataset consisted of 273 record ...
881 - 900 / 83319
 Was this page helpful?
 Found an issue?
Send us an email at: publishinghd@cdc.gov