长三角是我国东部沿海经济最发达的地区，也是我国能源消耗量最大、大气污染物排放最为密集、大气复合污染最严重的区域之一。集聚的产业链和密集的交通网络给该区域带来了巨大的环境压力。2014年1月，长三角区域联防联控协作机制正式成立以来，在强化区域协作、推动环境质量改善方面取得了重要成效。然而，还存在体制机制障碍、政策不协同、缺少具有区域执法权的监督管理机构、缺乏区域层面研究支撑等瓶颈。本报告在总结分析长三角区域环境问题、协作机制成效与瓶颈的基础上，借鉴国内外联防联控经验，提出了深化长三角大气污染联防联控机制的对策建议。
Yangtze River Delta is one of the most economically developed regions in eastern China，and it is one of the most seriously polluted areas with high energy consumption and dense air pollutant emissions. It is faced with high environmental pressure due to the industrial chain and dense transportation network. Joint prevention and control mechanism was established in January 2014 in order to resolve the heavy air pollution，and it has pushed forward significant regional air pollution control progress. Although the mechanism has accomplished remarkable achievements，there are still some key bottlenecks related to mechanisms，policies and supervision. Based on analysis of the regional air pollution issues，achievements and shortcomings，and survey of the joint air pollution control experiences both at home and abroad，some suggestions which may improve the mechanism are proposed in this article.
