污染或致數千城市人口早死
2012年12月19日![A masked cyclist rides her electric bike on a road in heavy fog in Jinan city, east Chinas Shandong province, 6 December 2011. A government proposal for a tighter system of monitoring pollution nationwide, including using a PM2.5 measure of microscopic airborne particles, has won support from a majority of the public, the Ministry of Environmental Protection said Wednesday (7 December 2011). The new standard would require air-quality watchdogs to monitor airborne particles, those measuring less than 2.5 microns in diameter, and publish the findings.](https://static.dw.com/image/16395673_800.webp)
廣告
北京
據路透社報導,北京大學和綠色和平共同進行的一項研究顯示,四座中國大城市的微型空氣污染顆粒今年已經造成大約8600人過早死亡,以及大約10億美元的經濟損失。這項研究主要針對北京、上海、廣州和西安四座大型城市的PM2.5空氣污染指數,反映直徑小於或等於2.5微米的顆粒物在空氣中的存在,這種污染物可以直接吸入肺部,對呼吸系統和整個身體健康具有嚴重的危害。研究結果顯示,如果能夠達到世界衞生組織設定的空氣品質準則,那麼上述城市因PM2.5污染顆粒造成的早死人數將會減少八成以上。