中国燃煤电厂改造带来的汞相关健康惠益
Mercury-related health benefits from retrofitting coal-fired power plants in China
摘要：
中国在燃煤电厂实施了改造措施，通过小机组停机、安装空气污染控制装置和提高发电效率来减少空气污染。尚未对这些措施减少剧毒汞排放及其相关健康影响进行充分研究。为了完善缓解方案，我们评估了中国“十二五”期间通过改造措施减少汞排放的健康效益，将工厂级汞排放清单与中国汞风险源跟踪模型相结合。我们发现，这些措施减少了23.5吨汞排放量（约为2010年CFPP的1/5），防止了每个胎儿智商下降0.0021点和114例致命心脏病发作死亡。这些好处主要是CFPP关闭和APCD安装。各省的健康效益在很大程度上归功于其他地区的汞减排。我们还证明了在选择汞控制设备时，考虑人类健康影响的必要性，而不仅仅是汞减排。该研究还表明，汞控制策略应考虑各种因素，如CFPP的位置，人口密度和总汞（THg）和Hg 2+之间的权衡削减。
英文摘要：
China has implemented retrofitting measures in coal-fired power plants (CFPPs) to reduce air pollution through small unit shutdown (SUS), the installation of air pollution control devices (APCDs) and power generation efficiency (PGE) improvement. The reductions in highly toxic Hg emissions and their related health impacts by these measures have not been well studied. To refine mitigation options, we evaluated the health benefits of reduced Hg emissions via retrofitting measures during China's 12th Five-Year Plan by combining plant-level Hg emission inventories with the China Hg Risk Source-Tracking Model. We found that the measures reduced Hg emissions by 23.5 tons (approximately 1/5 of that from CFPPs in 2010), preventing 0.0021 points of per-foetus intelligence quotient (IQ) decrements and 114 deaths from fatal heart attacks. These benefits were dominated by CFPP shutdowns and APCD installations. Provincial health benefits were largely attributable to Hg reductions in other regions. We also demonstrated the necessity of considering human health impacts, rather than just Hg emission reductions, in selecting Hg control devices. This study also suggests that Hg control strategies should consider various factors, such as CFPP locations, population densities and trade-offs between reductions of total Hg (THg) and Hg2+.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
