Previous studies assessing DEP exposure and health risk have not examined this question.( 14– 16) Therefore, the focus of this article is to assess the strength of our exposure assessment methodology by analyzing variability in exposures across a 1- to 2-year time period. trucking industry and to assess quantitative relationships with mortality using a retrospective epidemiologic cohort of trucking industry workers.( 11) This cohort study contains approximately 55,000 people working in 1985 and, in an assessment of mortality through 2000, we have described an overall elevated risk of lung cancer mortality.( 12, 13)Īssessment of the stability of exposures in this occupational setting and the strength of our current exposure model represents essential parts of the development of a dose-response model for exhaust exposures and lung cancer risk. The overall goal of the TrIPS study is to build a model of current and historical exposure to DEP and other vehicle exhausts in the U.S. Once accounting for systematic prediction errors in background concentrations, the SEM approach provided a strong fit for work-related exposures in this occupational setting.ĭiesel exhaust particles (DEP) have been linked to increased risk of lung cancer mortality in more than 40 epidemiologic studies.( 1, 2) Although DEP is considered either a confirmed( 3) or probable human carcinogen,( 4– 6) the remaining uncertainty is driven largely by the difficulty in defining a dose-response relationship between exposure and cancer risk.( 1, 7, 8) Exposure to traffic exhaust in general has also been linked to increased lung cancer risk.( 9, 10) The Trucking Industry Particle Study (TrIPS) represents the most comprehensive assessment of the exposure-health link from diesel and other traffic exhaust particles in an occupational setting. There was a general trend toward higher exposures during the second sampling trips however, these differences were statistically significant in only a few cases and were largely attributable to changes in weather patterns (wind speed, precipitation, etc.).
J line trucking drivers#
trucking terminals were measured twice during the same season up to 2 years apart, observing concentrations in the indoor loading dock (median EC: period 1 = 0.65 µg/m 3 period 2 = 0.94 µg/m 3 ) and outdoor background location (median EC: period 1 = 0.46 µg/m 3 period 2 = 0.67 µg/m 3 ), as well as in the truck cabs of local drivers while on the road (median EC: period 1=1.09 µg/m 3 period 2 = 1.07 µg/m 3 ).
For these purposes, elemental carbon mass in PM<1 µm at six U.S. trucking industry and tests the predictive ability of a novel multilayer statistical approach to occupational exposure modeling using structural equation modeling (SEM) techniques. By submitting your information, you acknowledge that you have read our privacy policy and consent to receive email communication from Estes Express Lines.This study analyzes the temporal variability of occupational and environmental exposures to fine particulate matter in the U.S. If you need an accommodation to apply call the number on the website. Come find your new career at Applications are accepted online only through this website. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. Upload Resume By uploading your resume, you are not submitting an application for employment.Įstes values a diverse workforce and affirmatively promotes a company culture that embraces the concept that outcomes are improved when our workforce is made up of people with different viewpoints.
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