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Description:In response to a request from employees at the Park County Courthouse (SIC-9211), Fairplay, Colorado, an evaluation was made of indoor air quality at this facility, with specific reference to symptoms of headaches, ringing in the ears, worsening eyesight, and sinus problems. Six people worked at the building which had been constructed 2 years earlier. Air samples were taken at the facility and analyzed for formaldehyde (50000) by visible spectroscopy. Formaldehyde levels were measured at 0.03 to 0.06 parts per million (ppm), with a mean of 0.05ppm in the offices and courtrooms. As a result of recommendations, the building was made a no smoking area, and outside air vents were connected to the furnaces. At a follow-up visit, carbon-dioxide (124389) levels were about 250ppm throughout the building, reaching a maximum of 400ppm at 9:30 in the morning, when 29 people were present in the building. Relative humidity ranged from 14 to 18 percent. The author concludes that there was no hazard due to exposure to formaldehyde, and that adequate amounts of fresh air were supplied throughout the building. The author recommends increasing the relative humidity to about 40 percent to alleviate upper respiratory irritation caused by dry air during the heating season.
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Pages in Document:10 pdf pages
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Contributor:DiGiacomo, Marile F.
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NIOSHTIC Number:nn:00181812
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NTIS Accession Number:PB89-107809
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Citation:Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 87-404-1893, 1988 May;:1-11;
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Federal Fiscal Year:1988
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Peer Reviewed:False
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