TY - JOUR
T1 - Biological toxicities of emissions from an unmodified engine fueled with diesel and biodiesel blend
AU - Liu, Yu Yin
AU - Lin, Ta Chang
AU - Wang, Ying Jan
AU - Ho, Wei Lun
N1 - Funding Information:
The authors would like to thank the National Science Council of the Republic of China, Taiwan, for financially supporting this research under Contract No. NSC 95-2221-E-006-174-MY2.
PY - 2008/12
Y1 - 2008/12
N2 - Conventional diesel and palm oil methyl esters were blended in 6 ratios (0, 10, 30, 50, 75 and 100% of biodiesel by volume) and fed into an unmodified 4-stroke engine with a constant output power. The semi-volatile and particulate products in the exhaust were collected separately and their biological toxicities evaluated by both Microtox test and the 3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyltetrazolium bromide (MTT) assay. The Microtox test indicates that the TUVs (toxicity unit per liter exhaust sampled, TU/L-exhaust) in the semi-volatile extracts were 3 to 5 times those of the particulate extracts. Diesel particulates had the highest unit toxicity, TUW (toxicity unit per μg soluble organic fraction of particulate, TU/μg particle SOF) of all of the other biodiesel blends. According to the Microtox tests results, the effect of biodiesel blending in MTT assay demonstrated higher toxicity in the semi-volatile products than the particulates.
AB - Conventional diesel and palm oil methyl esters were blended in 6 ratios (0, 10, 30, 50, 75 and 100% of biodiesel by volume) and fed into an unmodified 4-stroke engine with a constant output power. The semi-volatile and particulate products in the exhaust were collected separately and their biological toxicities evaluated by both Microtox test and the 3-(4,5-dimethylthiazol-2-yl)- 2,5-diphenyltetrazolium bromide (MTT) assay. The Microtox test indicates that the TUVs (toxicity unit per liter exhaust sampled, TU/L-exhaust) in the semi-volatile extracts were 3 to 5 times those of the particulate extracts. Diesel particulates had the highest unit toxicity, TUW (toxicity unit per μg soluble organic fraction of particulate, TU/μg particle SOF) of all of the other biodiesel blends. According to the Microtox tests results, the effect of biodiesel blending in MTT assay demonstrated higher toxicity in the semi-volatile products than the particulates.
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U2 - 10.1080/10934520802330438
DO - 10.1080/10934520802330438
M3 - Article
C2 - 18988112
AN - SCOPUS:55749101922
SN - 1093-4529
VL - 43
SP - 1735
EP - 1743
JO - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
JF - Journal of Environmental Science and Health - Part A Toxic/Hazardous Substances and Environmental Engineering
IS - 14
ER -