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11月4日中国气象局发布的《气候变化绿皮书:应对气候变化报告(2013)》显示,今年以来,全国平均雾霾日数为29.9天,较常年同期偏多10.3天,为1961年以来历史同期最多。从空间分布看,雾霾日数变化呈东增西减趋势。西部地区年雾霾日数基本都在5天以下;珠三角地区和长三角地区增加最快,深圳和南京平均每年增加4.1天和3.9天。从PM2.5日益成为衡量空气质量的重要指标,可以看出,雾霾这一极端的气候现象已经给我们生活的环境带来了严重的危害。
On November 4, the “Green Paper on Climate Change: Report on Climate Change (2013)” released by the China Meteorological Administration shows that the average number of smog days since the beginning of this year was 29.9 days, 10.3 days more than the same period of last year. Since 1961 Mostly in history. From the perspective of spatial distribution, the change of haze days showed a trend of increasing eastward and westward. The annual number of haze days in the western region is basically less than 5 days. The Pearl River Delta region and the Yangtze River Delta region have the fastest increase. Shenzhen and Nanjing have an average annual increase of 4.1 days and 3.9 days. From PM2.5 onwards, it is an important indicator of the quality of the scale of air emissions that it can be seen that the extreme weather phenomenon of haze has brought serious harm to the environment in which we live.