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2016年北京市环境状况公报发布 大气污染治理仍面临巨大挑战

2017-06-03 02:51:11   国际在线

国际在线报道(记者 林维):北京市环保局昨天(2日)发布《2016年北京市环境状况公报》,对去年全市环境状况进行了总结和回顾。《公报》显示,北京市大气环境质量持续改善,地表水环境质量稳中向好,生态环境状况良好。京津冀及周边地区大气污染防治协作机制不断完善,治理效果逐步释放。但是,北京空气质量改善任务依然艰巨,2016年全市PM2.5年均浓度虽有下降,仍超过国家标准1.09倍。

由北京市环保局发布的《2016年北京市环境状况公报》显示,2016年,细颗粒物(PM2.5)年平均浓度值为73微克/立方米,比上年下降9.9%。北京市环保局环境监测处处长 乔淑芳介绍说,2016年北京市达标天数有所增加,但空气质量改善任务依然艰巨,“从16年达标天数情况看,空气质量达标优良天数198天,也就是空气质量指数在0-100之间的天数全年是198天,占全年天数比例是54.1%,比15年增加12天,比13年增加22天。重污染天数从13年的58天减少到(16年)39天,减少了19天。那么在超标天数当中,16年PM2.5作为首要污染的比例最高,占比64.9%,臭氧是31.5%。”

而在水环境方面,乔淑芳表示,2016年北京市地表水水质稳中向好,主要污染指标年均浓度均有所下降,“水环境16年全市地表水水质稳中向好的一个情况,水体监测断面,两项主要指标为主——高锰酸盐指数和氨氮指数年均浓度与上年相比分别下降了4.4%和4.9%。饮用水源还是继续保持符合国家标准的情况。”

《公报》还显示,2016年北京市辐射环境质量保持正常,全市生态环境状况良好。从区域分布看,北部山区生态环境状况好于其他区域,其中怀柔区生态环境状况最好。

据北京市环保局环境监测处处长 乔淑芳透露,2016年北京市实施了一系列措施,包括燃煤锅炉改造、淘汰老旧机动车、对违法违规排污企业清理整治等,深化推进环境污染防治,超额完成了全年减排措施任务。此外,京津冀区域协作机制也实现了新突破,“2016年,京津冀率先统一空气重污染应急预警分级标准;深化结对合作治污机制,本市共投入财政5.02亿元资金支持保定、廊坊两市开展小型燃煤锅炉淘汰和大型燃煤锅炉治理工作;完善信息共享机制,京津冀及周边地区实现七省(区、市)有关的空气质量信息的共享;京津冀三地建立了水污染应急联席制度和信息通报机制,印发实施了水污染防治京津冀16-17年实施方案,进一步推动北京、河北对潮白河下游开展水污染共同的治理。”

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