Cautionary tales on air-quality improvement in Beijing
Cautionary tales on air-quality improvement in Beijing
复制标题
北京空气质量改善的警示故事
DOI：
10.1098/rspa.2017.0457
复制
发表时间：
2017-09-01
影响因子：
3.5
通讯作者：
Chen, Song Xi
中科院分区：
文献类型：
--
作者：
Zhang, Shuyi;Guo, Bin;Chen, Song Xi
官方空气质量统计数据显示，2016年北京PM2.5年浓度下降了9.9%。虽然这一统计数据让首都的居民松了一口气，但我们基于北京36个监测点过去4年的PM2.5数据以及过去7年的气象数据，进行了一些分析。分析显示，2016年的空气污染情况并不像下降9.9%所传达的那样乐观，如果有任何改善，也相当不确定。该报告还对过去4年的PM2.5状况进行了评估。
The official air-quality statistic reported that Beijing had a 9.9% decline in the annual concentration of PM2.5 in 2016. While this statistic offered some relief for the inhabitants of the capital, we present several analyses based on Beijing's PM2.5 data of the past 4 years at 36 monitoring sites along with meteorological data of the past 7 years. The analyses reveal the air pollution situation in 2016 was not as rosy as the 9.9% decline would convey, and improvement if any was rather uncertain. The paper also provides an assessment on the city's PM2.5 situation in the past 4 years.