Details:

Alternative Title:
Am J Ind Med
Personal Author:
Nonnenmann, Matthew W. ; de Porras, David Gimeno Ruiz ; Levin, Jeffrey ; Douphrate, David ; Boggaram, Vijay ; ... More +
Nonnenmann, Matthew W. ; de Porras, David Gimeno Ruiz ; Levin, Jeffrey ; Douphrate, David ; Boggaram, Vijay ; Schaeffer, Joshua ; Gallagher, Michael ; Hornick, Madeleine ; Reynolds, Stephen Less -
Description:
Background

Inhalation exposure to organic dust causes lung inflammation among agricultural workers. Due to changes in production and work organization, task-based inhalation exposure data, including novel lung inflammation biomarkers, will inform exposure recommendations for dairy farm workers.

Methods

Linear regression was used to estimate the associations of airborne exposure to dust concentration, endotoxin, and muramic acid with pulmonary outcomes (i.e., FEV1, exhaled nitric oxide). Logistic regression was used to estimate associations with self-reported pulmonary symptoms.

Results

Mean exposure concentration to inhalable dust, endotoxin, and muramic acid were 0.55 mg/m3, 118 EU/m3, and 3.6 mg/m3, respectively. We found cross-shift differences for exhaled nitric oxide (P = 0.005) and self-reported pulmonary symptoms (P = 0.008) but no association of exposure with respiratory outcomes.

Conclusions

Inhalation exposures during parlor tasks, which were lower than previously reported and were not associated with cross-shift measures of pulmonary health among dairy workers. Modern milking parlor designs may be contributing to lower inhalation exposure. Am. J. Ind. Med. 60:255–263, 2017.


Subjects:
[+]
Adult Aerosols Air Pollutants, Occupational Article Cross-Sectional Studies Dairying Dust Endotoxins Female Humans Inhalation Exposure Lung Diseases Male Muramic Acids Occupational Diseases Occupational Exposure Respiratory Function Tests
Source:
Am J Ind Med. 60(3):255-263
Pubmed ID:
28195657
Pubmed Central ID:
PMC7082837
Document Type:
Journal Article
Funding:
L30 RR033224/RR/NCRR NIH HHS/United States ; P30 ES005605/ES/NIEHS NIH HHS/United States ; U54 OH007548/OH/NIOSH CDC HHS/United States
L30 RR033224/RR/NCRR NIH HHS/United States ; P30 ES005605/ES/NIEHS NIH HHS/United States ; U54 OH007548/OH/NIOSH CDC HHS/United States Less -
Collection(s):
CDC Public Access
Main Document Checksum:
[+]
urn:sha256:694342171d02ae1ca989b0965bde05c4a994e43c040e356659123a37b403f019
Download URL:
https://stacks.cdc.gov/view/cdc/86020/cdc_86020_DS1.pdf
File Type:

Supporting Files

• nihms-1068353.nxml

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