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Comparison of Acute Health Effects From Exposures to Diesel and Biodiesel Fuel Emissions.


ABSTRACT: To investigate the comparative acute health effects associated with exposures to diesel and 75% biodiesel/25% diesel (B75) blend fuel emissions.We analyzed multiple health endpoints in 48 healthy adults before and after exposures to diesel and B75 emissions in an underground mine setting-lung function, lung and systemic inflammation, novel biomarkers of exposure, and oxidative stress were assessed.B75 reduced respirable diesel particulate matter by 20%. Lung function declined significantly more after exposure to diesel emissions. Lung inflammatory cells along with sputum and plasma inflammatory mediators increased significantly to similar levels with both exposures. Urinary 8-hydroxydeoxyguanosine, a marker of oxidative stress, was not significantly changed after either exposure.Use of B75 lowered respirable diesel particulate matter exposure and some associated acute health effects, although lung and systemic inflammation were not reduced compared with diesel use.

SUBMITTER: Mehus AA 

PROVIDER: S-EPMC4479787 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature

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Comparison of Acute Health Effects From Exposures to Diesel and Biodiesel Fuel Emissions.

Mehus Aaron A AA   Reed Rustin J RJ   Lee Vivien S T VS   Littau Sally R SR   Hu Chengcheng C   Lutz Eric A EA   Burgess Jefferey L JL  

Journal of occupational and environmental medicine 20150701 7


<h4>Objective</h4>To investigate the comparative acute health effects associated with exposures to diesel and 75% biodiesel/25% diesel (B75) blend fuel emissions.<h4>Methods</h4>We analyzed multiple health endpoints in 48 healthy adults before and after exposures to diesel and B75 emissions in an underground mine setting-lung function, lung and systemic inflammation, novel biomarkers of exposure, and oxidative stress were assessed.<h4>Results</h4>B75 reduced respirable diesel particulate matter  ...[more]

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