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法国空气质量有所改善 多个地区二氧化氮仍超标

2017-09-20 14:02:31   中国网

据法国媒体“欧洲时报”9月19日报道,法国当地时间9月19日,即该国空气质量日当天公布的一份报告指出,法国的空气质量有所改善,但某些地区的悬浮微粒和二氧化氮浓度仍然超过欧盟标准。

19日,法国空气质量监察总实验室在上述分析大气污染情况的报告中指出,空气质量逐步改善,这得益于多年来为减少污染气体排放量采取的战略和行动计划。

根据这份报告,在重点分析的2000年到2010年这段时期,环境空气二氧化氮浓度下降了17.3%,直径小于10微米(PM10)的悬浮微粒浓度下降了15.1%。臭氧浓度峰值减少了3.8%。

报告指出,较近这段时期,悬浮微粒和臭氧浓度呈下降趋势,而且这个降势甚至在加快。重金属也大幅下降,硫化物降幅很大。但悬浮微粒中的氮化物(硝酸盐)浓度2000年以来一直保持不变,令人担忧。巴黎、马赛、里昂、格勒诺布尔、斯特拉斯堡、图卢兹等2个地区二氧化氮超标。巴黎、罗纳阿尔卑斯地区等3个地区悬浮微粒超标。

报道称,空气污染每年在法国导致近5万人死亡,是法国人主要的环境担忧之一。法国行政法院今年夏季命令政府,务必在2018年3月31日之前,将2015年PM10悬浮微粒和二氧化氮浓度超标地区的浓度降到欧盟指令规定的限值以下。(赵怡蓁)

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