Simulation of atmospheric nitrogen deposition in China in 2010

被引：0

作者：

Zheng, Dan-Nan ^{[1
]}

Wang, Xue-Song ^{[1
]}

Xie, Shao-Dong ^{[1
]}

Duan, Lei ^{[2
]}

Chen, Dong-Sheng ^{[3
]}

机构：

[1] State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China

[2] School of Environment, Tsinghua University, Beijing 100084, China

[3] College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China

来源：

Zhongguo Huanjing Kexue/China Environmental Science | 2014年 / 34卷 / 05期

关键词：

Budget control - Air quality;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The Community Multiscale Air Quality (CMAQ) modeling system was applied to simulate the atmospheric nitrogen (N) deposition in China during 2010. The budget of N deposition for China was 7.6×103 Gg in 2010, which was dominated by deposition of reduced nitrogen (accounting for 2/3). N deposition was highest in summer and lowest in winter. Dry deposition was the predominant form of N deposition (accounting for 62%), mainly contributed by the gaseous nitrogen pollutants, while wet deposition was mainly attributed to particulate ammonium and nitrate. The N deposition varied greatly in space, with high values in the east and low in the west. Specifically, high N deposition was found in the North China Plain, the Sichuan Basin, southern central of Central China, Guangdong and Guangxi, and parts of the Northeast. Thus, reduction of N deposition in China would depend on the control of emissions of ammonia, as well as those of nitrogen oxide in the developed eastern coastal areas.

引用

页码：1089 / 1097