Impact of biodiesel on regulated and unregulated emissions, and redox and proinflammatory properties of PM emitted from heavy-duty vehicles

被引：45

作者：

Karavalakis, Georgios ^{[1
,2
]}

Gysel, Nicholas ^{[1
,2
]}

Schmitz, Debra A. ^{[3
,4
]}

Cho, Arthur K. ^{[3
,4
]}

Sioutas, Constantinos ^{[5
]}

Schauer, James J. ^{[6
]}

Cocker, David R. ^{[1
,2
]}

Durbin, Thomas D. ^{[1
,2
]}

机构：

[1] Univ Calif Riverside, Bourns Coll Engn, Ctr Environm Res & Technol CE CERT, 1084 Columbia Ave, Riverside, CA 92507 USA

[2] Univ Calif Riverside, Bourns Coll Engn, Dept Chem & Environm Engn, Riverside, CA 92521 USA

[3] Univ Calif Los Angeles, Ctr Hlth Sci, Dept Mol & Med Pharmacol, Los Angeles, CA 90095 USA

[4] Univ Calif Los Angeles, Ctr Hlth Sci, Dept Environm Hlth Sci, Los Angeles, CA 90095 USA

[5] Univ Southern Calif, Dept Civil & Environm Engn, 3620 South Vermont Ave, Los Angeles, CA 90089 USA

[6] Univ Wisconsin, Environm Chem & Technol Program, 660 North Pk St, Madison, WI USA

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2017年 / 584卷

关键词：

Biodiesel; Heavy-duty diesel trucks; Emissions; Particles; Toxicity; Oxidative stress; PARTICULATE MATTER EMISSIONS; DIESEL EXHAUST PARTICLES; POLLUTANT EMISSIONS; FUEL CONSUMPTION; NOX EMISSIONS; METHYL-ESTER; ENGINE; COMBUSTION; OXIDATION; BLENDS;

D O I：

10.1016/j.scitotenv.2017.01.187

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The emissions and the potential health effects of particulate matter (PM) were assessed from two heavy-duty trucks with and without emission control aftertreatment systems when operating on CARB ultra-low sulfur diesel (ULSD) and three different biodiesel blends. The CARB ULSD was blended with soy-based biodiesel, animal fat biodiesel, and waste cooking oil biodiesel at 50 vol%. Testing was conducted over the EPA Urban Dynamometer Driving Schedule (UDDS) in triplicate for both trucks. The aftertreatment controls effectively decreased PM mass and number emissions, as well as the polycyclic aromatic hydrocarbons (PAHs) compared to the uncontrolled truck. Emissions of nitrogen oxides(NOx) exhibited increases with the biodiesel blends, showing some feedstock dependency for the controlled truck. The oxidative potential of the emitted PM, measured by means of the dithiothreitol (DTT) assay, showed reductions with the use of biodiesel blends relative to CARB ULSD for the uncontrolled truck. Overall, the cellular responses to the particles from each fuel were reflective of the chemical content, i.e., particles from CARB ULSD were the most reactive and exhibited the highest cellular responses. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：1230 / 1238

页数：9

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