Full Title: Emission factor of ammonia (NH3) from on-road vehicles in China: tunnel tests in urban Guangzhou
Author(s): Tengyu Liu, Xinming Wang, Boguang Wang, Xiang Ding, Wei Deng, Sujun Lü, and Yanli Zhang
Publisher(s): Environmental Research Letters
Publication Date: June 1, 2014
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Description (excerpt):
Emission of NH3 from vehicles, particularly gasoline powered light duty vehicles equipped with three-way catalysts, is regarded as an important source apart from emissions from animal wastes and soils, yet measured emission factors for motor vehicles are still not available in China, where traffic-related emission has become an increasingly important source of air pollutants in urban areas. Here we present our tunnel tests for NH3 from motor vehicles under ‘real world conditions’ in an urban roadway tunnel in Guangzhou, a central city in the Pearl River Delta (PRD) region in south China.