Multiple-Year Changes (2014-2018) in Particulate Vanadium Linked to Shipping Regulations in the World's Largest Port Region

被引：6

作者：

Cheng, Kai ^{[1
]}

Chang, Yunhua ^{[1
]}

Kuang, Yaqiong ^{[1
]}

Ling, Qingyang ^{[1
]}

Zou, Zhong ^{[2
]}

Huang, Ru-Jin ^{[3
,4
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Yale NUIST Ctr Atmospher Environm, Nanjing 210044, Peoples R China

[2] Fudan Univ, Inst Atmospher Sci, Dept Environm Sci & Engn, Shanghai 200433, Peoples R China

[3] Chinese Acad Sci, Ctr Excellence Quaternary Sci & Global Change, Inst Earth & Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China

[4] Chinese Acad Sci, Inst Earth & Environm, Key Lab Aerosol Chem & Phys, Xian 710061, Peoples R China

来源：

ACS EARTH AND SPACE CHEMISTRY | 2022年 / 6卷 / 02期

基金：

中国国家自然科学基金;

关键词：

shipping emission; trace element; cleaner fuel; elemental vanadium; Shanghai; sea port; AIR-QUALITY; SOURCE APPORTIONMENT; RIVER DELTA; LONG-TERM; EMISSIONS; CHINA; IMPACTS; SULFUR; PM2.5; IDENTIFICATION;

D O I：

10.1021/acsearthspacechem.1c00402

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

China introduced an emission control area (ECA) along the coastline of the Yangtze River Delta (YRD) region in 2016 in a bid to reduce its shipping emissions. Performed at a costal site in the YRD region from 2014 to 2018, we found a significant reduction (16-22%, p < 0.01) in vanadium concentrations, the exclusive marker for heavy fuel oil combustion, after the full-scale implementation of lower sulfur fuel change for marine ships. Another site closer to the coastline showed a larger reduction (24- 30%, p < 0.01) during the corresponding period. The reduction of vanadium was consistent with an overall decrease rate of 17% in the annual SO2 concentrations of 10 sites across the region from 2016 to 2017. We thus provide a robust assessment of the positive effects of regulating shipping emissions on air quality in coastal China. The future trajectories of shipping-related emissions are also discussed.

引用

页码：415 / 420

页数：6