Role of export industries on ozone pollution and its precursors in China

Ou J, Huang Z, Klimont Z ORCID: https://orcid.org/0000-0003-2630-198X, Jia G, Zhang S, Li C, Meng J, Mi Z, et al. (2020). Role of export industries on ozone pollution and its precursors in China. Nature Communications 11 (1): e5492. DOI:10.1038/s41467-020-19035-x.

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Abstract

This study seeks to estimate how global supply chain relocates emissions of tropospheric ozone precursors and its impacts in shaping ozone formation. Here we show that goods produced in China for foreign markets lead to an increase of domestic non-methane volatile organic compounds (NMVOCs) emissions by 3.5 million tons in 2013; about 13% of the national total or, equivalent to half of emissions from European Union. Production for export increases concentration of NMVOCs (including some carcinogenic species) and peak ozone levels by 20-30% and 6-15% respectively, in the coastal areas. It contributes to an estimated 16,889 (3,839-30,663, 95% CI) premature deaths annually combining the effects of NMVOCs and ozone, but could be reduced by nearly 40% by closing the technology gap between China and EU. Export demand also alters the emission ratios between NMVOCs and nitrogen oxides and hence the ozone chemistry in the east and south coast.

Item Type: Article
Research Programs: Air Quality & Greenhouse Gases (AIR)
Young Scientists Summer Program (YSSP)
Depositing User: Luke Kirwan
Date Deposited: 02 Nov 2020 07:42
Last Modified: 05 Nov 2020 08:59
URI: http://pure.iiasa.ac.at/16824

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