期刊
ATMOSPHERIC ENVIRONMENT
卷 44, 期 14, 页码 1806-1814出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.atmosenv.2010.01.001
关键词
Transport model; Atmospheric lead; Heavy metal; Particulate matter
资金
- Japan Science and Technology Agency [1300001, 2008-2010]
A global atmospheric transport model is used to calculate lead concentrations in the atmosphere. The model performance is evaluated through comparisons with observations in Europe. The model results of lead concentrations in surface air were compared with measurements in East Asia. The detailed comparisons showed generally good agreement for recent decades, although systematic underestimation was found in China. Anthropogenic lead emissions in China are estimated from economic statistics to be 56 000 t yr(-1), which is not small considering the economic scale of China. The underestimations suggest a hidden source of lead emissions. The emissions in Japan and Korea are derived from optimization by the model. The magnitude is about 2000 t yr(-1), which is much greater than that reported by the Pollutant Release and Transfer Register in Japan and Toxics Release Inventory in Korea. (C) 2010 Elsevier Ltd. All rights reserved.
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