State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China; Institute for Atmospheric and Earth System Research/Physics, Faculty of Science, University of Helsinki, 00014 Helsinki, Finland.
State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.
Environ Int. 2024 Sep;191:108947. doi: 10.1016/j.envint.2024.108947. Epub 2024 Aug 13.
The transport of atmospheric pollutants plays a pivotal role in regional air pollution, highlighting critical concerns over the unequal health outcomes that arise from such transport. While previous researches predominantly focused on key areas in the battle against air pollution, the intensification of control measures necessitates a national perspective to comprehend the health impacts due to pollution transport. Our study establishes an integrated assessment framework that combine an emission-concentration response surface model with a health impact evaluation model to analyse the nationwide health impacts of PM and O pollution transport across China's 31 provinces. We found that, interprovincial transport of PM and O contributed to 747,000 and 110,000 deaths respectively in 2017, which amounts to 38% and 48% of deaths caused by total anthropogenic emissions. North, East, and Central China together contribute 82% and 69% to the health impacts caused by regional PM and O transport respectively, and the transport among these three regions is also significant. The analysis of interprovincial health impact transport shows that, for PM, the top contributors are Hebei, Shandong, Henan, Anhui, and Jiangsu, with the most affected being Henan, Shandong, Jiangsu, Hebei, and Guangdong. Regarding O, Shandong, Hebei, Henan, Jiangsu, and Anhui contribute the most, while Henan, Shandong, Hebei, Jiangsu, and Anhui are the most affected. This study can shed lights on regional control strategies by prioritizing control areas based on the health impact of air pollution transport in China.
大气污染物的传输在区域空气污染中起着关键作用，突出了由于这种传输而导致的不平等健康结果的重要问题。虽然以前的研究主要集中在对抗空气污染的关键领域，但控制措施的加强需要从国家角度来理解污染传输对健康的影响。我们的研究建立了一个综合评估框架，该框架将排放-浓度响应面模型与健康影响评估模型相结合，以分析中国 31 个省的 PM 和 O 污染传输对全国健康的影响。我们发现，2017 年，省际 PM 和 O 传输分别导致 74.7 万人和 11 万人死亡，分别占总人为排放造成的死亡人数的 38%和 48%。华北、华东和华中地区共同造成了区域 PM 和 O 传输所致健康影响的 82%和 69%，这三个地区之间的传输也很重要。对省际健康影响传输的分析表明，对于 PM，河北、山东、河南、安徽和江苏是主要贡献者，而河南、山东、江苏、河北和广东是受影响最严重的地区。对于 O，山东、河北、河南、江苏和安徽的贡献最大，而河南、山东、河北、江苏和安徽是受影响最严重的地区。本研究可以通过根据中国空气污染传输的健康影响优先考虑控制区域，为区域控制策略提供启示。
