期刊
JOURNAL OF OCCUPATIONAL AND ENVIRONMENTAL HYGIENE
卷 7, 期 1, 页码 7-13出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15459620903327970
关键词
aerosol photometers; agricultural production; task-based analysis
资金
- NIOSH [U50 OH007548-06]
- ALLCDC [5U54OH007548-13] Funding Source: Federal RePORTER
- NATIONAL INSTITUTE FOR OCCUPATIONAL SAFETY AND HEALTH [U50OH007548] Funding Source: NIH RePORTER
A task-based analysis of personal airborne dust exposures was performed in two swine confinement facilities used to house sows and their litters. Airborne particulate levels were assessed during summer, winter, and spring. Personal aerosol measurements of workers were made with a photometer every 15 sec and corrected to compare with an integrated concentration measurement made with a co-located IOM inhalable dust sampler. Task type and time period were recorded by the workers over an 8-hr work shift. There was a significant difference in dust concentrations between seasons (p < 0.001), with winter months providing the highest levels (geometric mean = 3.76 mg/m(3)). The application of a general linear model of log-transformed task concentrations relative to site, season, and task demonstrated significant differences (P < 0.001) among all three covariates. Tasks performed near moving animals, especially the weaning process, resulted in the greatest concentrations. These results indicate the need to evaluate the concentration levels for separate tasks during multi-task work shifts, such as swine rearing, to optimize efforts to minimize exposures by focusing on high-concentration tasks.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据