Ammonia emissions from a representative in-use fleet of vehicles in Guangzhou

Wang, Boguang, Wang, Hao, Yang, Jun, Zhou, Lei, Shuang, J.R., Zhong, S.F., Feng, Q., & Huang, Qing (2012) Ammonia emissions from a representative in-use fleet of vehicles in Guangzhou. In 12th International Global Atmospheric Chemistry Open Science Conference: Atmospheric Chemistry in the Anthropocene, 17-21 September, 2012, Beijing, China. (Unpublished)

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Abstract

Emission rates of ammonia (NH3) are reported for a fleet of 130 light-, medium-, and heavy-duty vehicles recruited in Guangzhou, China. NH3 measurements were performed using Nessler's Reagents spectrophotometry and nationwide standard chassis dynamometer test cycles required by Chinese EPA. Emissions of CO and NOx were also measured during these test cycles. Emission factors of NH3 were calculated for each type of vehicle and used to estimate the total emissions of NH3 from motor vehicles in Guangzhou (GZ) in 2009. Emission factors of NH3 show large variations among different categories of vehicles, with a range from 4 to 138 mg km-1. The average emissions of NH3 in Guangzhou in 2009 were estimated to be 983 t, with a range from 373 to 2136 t. In addition, it was found that vehicles with the highest NH3 emission rates possess the following characteristics: mediumand heavy-duty vehicles, certified with out-of-date emission standards, mid-range odometer readings, and higher CO and NOx emission rates. The results of this study will be useful for developing NH3 emissions inventories in Guangzhou and other urban areas in China.

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ID Code: 59471
Item Type: Conference Item (Poster)
Refereed: Yes
Subjects: Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Monitoring (050206)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2012 (please consult the authors).
Deposited On: 30 Apr 2013 06:54
Last Modified: 04 May 2013 05:14

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