Airshed model evaluation of reactivity adjustment factors calculated with the maximum incremental reactivity scale for transitional-low emission vehicles

Journal Article · Fri Jul 01 04:00:00 EDT 1994 · Journal of the Air and Waste Management Association

DOI:https://doi.org/10.1080/1073161X.1994.10467291· OSTI ID:62284

McNair, L A; Russell, A G; Odman, M T ^[1]; Croes, B E ^[2]; Kao, L ^[3]

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1. Carnegie Mellon Univ., Pittsburgh, PA (United States)
2. California Air Resources Board, Sacramento, CA (United States)
3. California Air Resources Board, El Monte, CA (United States)

The CIT airshed model was used to test the maximum incremental reactivity (MIR) emission weighting alternatively fueled vehicles (AFVs) exhaust and the reactivity adjustment factors (RAFs) scale recently adopted by the Air Resources Board. Two episodes were use in the study, one being very stagnant and the other only moderately so. Two base emission inventories were used for each episode, one corresponding to 1987 with motor vehicle nonmethane organic gas and CO exhaust emissions doubled, and the other to 2010. For the two episodes studied, MIR weighting led to similar results, though not equivalent. The LPG and M85-fueled vehicle exhausts were more reactive than the conventionally fueled vehicle case over the three day periods. The CNG results were less reactive. These results suggest that the reactivity weighting is a valid method for comparing exhaust emissions. However RAFs calculated with MIR weighting may underestimate the ozone-forming potential of M85 and LPG over a very stagnant three-day period. 26 refs., 1 fig., 11 tabs.

• Sponsoring Organization: USDOE
• OSTI ID: 62284
• Journal Information: Journal of the Air and Waste Management Association, Journal Name: Journal of the Air and Waste Management Association Journal Issue: 7 Vol. 44; ISSN JAWAEB; ISSN 1047-3289
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
33 ADVANCED PROPULSION SYSTEMS
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION CONTROL
AUTOMOBILES
COMPILED DATA
EXHAUST GASES
GASOLINE
METHANOL
NITROGEN OXIDES
OZONE LAYER
REGULATIONS