Chen, L;
Meng, J;
Liang, S;
Zhang, H;
Zhang, W;
Liu, M;
Tong, Y;
... Shu, J; + view all
(2018)
Trade-Induced Atmospheric Mercury Deposition over China and Implications for Demand-Side Controls.
Environmental Science and Technology
, 52
(4)
pp. 2036-2045.
10.1021/acs.est.7b04607.
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Abstract
Mercury (Hg) is of global concern because of its adverse effects on humans and the environment. In addition to long-range atmospheric transport, Hg emissions can be geographically relocated through economic trade. Here, we investigate the effect of China's interregional trade on atmospheric Hg deposition over China, using an atmospheric transport model and multiregional input-output analysis. In general, total atmospheric Hg deposition over China is 408.8 Mg yr-1, and 32% of this is embodied in China's interregional trade, with the hotspots occurring over Gansu, Henan, Hebei, and Yunnan provinces. Interprovincial trade considerably redistributes atmospheric Hg deposition over China, with a range in deposition flux from -104% to +28%. Developed regions, such as the Yangtze River Delta (Shanghai, Jiangsu, and Zhejiang) and Guangdong, avoid Hg deposition over their geographical boundaries, instead causing additional Hg deposition over developing provinces. Bilateral interaction among provinces is strong over some regions, suggesting a need for joint mitigation, such as the Jing-Jin-Ji region (Beijing, Tianjin, and Hebei) and the Yangtze River Delta. Transferring advanced technology from developed regions to their developing trade partners would be an effective measure to mitigate China's Hg pollution. Our findings are relevant to interprovincial efforts to reduce trans-boundary Hg pollution in China.
| Type: | Article |
|---|---|
| Title: | Trade-Induced Atmospheric Mercury Deposition over China and Implications for Demand-Side Controls |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/acs.est.7b04607 |
| Publisher version: | https://doi.org/10.1021/acs.est.7b04607 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10070685 |
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