Particulate Emissions from Diesel Engines - Evaluation of Measurement and Results

Lies, K.-H.; Postulka, A.; Gring, H.

doi:10.4271/830455

Cited by 9 publications

(2 citation statements)

References 2 publications

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“…DEP contains diverse organic constituents containing the compounds of clear environmental significance including various polycyclic aromatic hydrocarbons (PAHs) (8). While DEP has been studied primarily in connection with lung cancer, pulmonary inflammation, and asthma (9,10), it recently has attracted attention in terms of endocrine-disrupting effects.…”

Section: )-Induced Luciferase Activity Without Decreasing Cell Viabilmentioning

confidence: 99%

Antiestrogenic Activity of Extracts of Diesel Exhaust Particulate Matter in MCF-7 Human Breast Carcinoma Cells

Okamura

Kizu

Toriba

et al. 2002

Polycyclic Aromatic Compounds

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Diesel exhaust particulate matter (DEP) was collected from three commercial diesel engine vehicles and DEP extracts (DEPEs) were prepared from each. The estrogenic and antiestrogenic activities of the DEPE samples were examined using an estrogen response element (ERE)-driven luciferase reporter gene assay in MCF-7 human breast cancer cells. While DEPE samples did not exhibit significant estrogen agonist activity alone, they suppressed 17β-estradiol (E 2 )-induced luciferase activity without decreasing cell viability. Several polycyclic aromatic hydrocarbons (PAHs) acting as aryl hydrocarbon receptor (AhR) agonists were detected in the DEPEs and their

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Section: )-Induced Luciferase Activity Without Decreasing Cell Viabilmentioning

confidence: 99%

Antiestrogenic Activity of Extracts of Diesel Exhaust Particulate Matter in MCF-7 Human Breast Carcinoma Cells

Okamura

Kizu

Toriba

et al. 2002

Polycyclic Aromatic Compounds

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“…Through the sensitivity analysis, the errors associated with the pressure transducer and the critical flow venturi constant also contributed significantly to the overall uncertainty. Some additional authors that investigated variability in particulate sampling include, but are not limited to, Abdul-Khalek (1998), Black and Doberstein (1980), Black and High (1979), Duleep (1980), Johnson (2000), Lies (1983), MacDonald et al (1984, and Rickeard et al (1996).…”

Section: Variability In Particulat E Samplingmentioning

confidence: 99%

Development of a micro-dilution tunnel system for in-use, on-board heavy-duty vehicle particulate matter emissions measurement

Cirillo¹

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A novel portable particulate matter measuring system was designed, developed and qualified. The heavy-duty engine Federal Test Procedure (FTP) requires the use of a full-flow tunnel to measure particulate emissions from diesel fueled engines. However, a full-flow tunnel based constant volume sampler (CVS) system is not only expensive to build and maintain, it also requires a large work space. The portable micro-dilution system that could be used for measuring on-board, in-use emissions from heavy-duty vehicles would cost significantly less. The micro-dilution tunnel operates on the same principle as a full-flow dilution tunnel. The added advantage of the proposed design is that unlike a full-flow tunnel, dilution ratios can be controlled very accurately. The micro-dilution tunnel system was designed to maintain a dilution ratio of at least four to one. Dilution ratios were determined by measuring the mass flow rates of the dilution air and dilute exhaust, and the difference of the two was equal to the raw exhaust mass flow rate. The design incorporates a novel (3.175 mm in diameter, and 0.254 m long) concentric stainless dilution tunnel, which was a porous stack sampler manufactured by Mott Corporation. The unique feature of the system is its use of a single pump for not only drawing the diluted exhaust out of the micro-dilution tunnel, but also supplying filtered and dry dilution air to the tunnel. The system was used to collect PM emissions data from two different engines, namely, Navistar T444E and Detroit Diesel Series 60. The engines were tested over several steady state and transient tests. The micro-dilution system was compared to West Virginia University's (WVU) Engine and Emissions Research Laboratory (EERL) full flow tunnel system. As expected, the particulate matter data correlated better with steady state than with transient tests. The particulate matter mass emission rates were within 14% for the steady state tests and within 17% for majority of the transient tests of the full-flow laboratory's PM mass emissions data. However, one transient test resulted in a 33% difference between the micro-dilution tunnel and the full-flow dilution tunnel. The test results indicate that modifications are necessary to the micro-dilution system before it is to be used for on-road PM emission measurements. iii ACKNOWLEDGEMENTS As my sixth year at West Virginia University comes to an end, I must say that all goods things must come to an end. There are several people who have played an important role during my graduate studies at WVU and I would like to try to thank each and every one of them. I must first thank Dr. Mridul Gautam for giving me the opportunity to attend graduate school. Thank you for being my advisor and friend. Your support has encouraged me to keep going and never give up. I also wish to thank my other committee members, Dr. Gary Morris and Dr. Greg Thompson for their continued support and influence throughout my graduate education. I would like to thank the most important people in my life, my family....

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Measurement of Unregulated Exhaust Gas Components and Diesel Exhaust Gas Particles

Klingenberg¹

1996

Automobile Exhaust Emission Testing

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Particulate Emissions from Diesel Engines - Evaluation of Measurement and Results

Cited by 9 publications

References 2 publications

Antiestrogenic Activity of Extracts of Diesel Exhaust Particulate Matter in MCF-7 Human Breast Carcinoma Cells

Antiestrogenic Activity of Extracts of Diesel Exhaust Particulate Matter in MCF-7 Human Breast Carcinoma Cells

Development of a micro-dilution tunnel system for in-use, on-board heavy-duty vehicle particulate matter emissions measurement

Measurement of Unregulated Exhaust Gas Components and Diesel Exhaust Gas Particles

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