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专家:大气污染物削减达标需十余年 东部超载最严重

2016-12-18 11:14:19   科技日报

“特殊季节管理,将是2017年北京等城市的大气治理特色。冬季管理更严格,从夏季就要提前布局,对企业生产等进行调节。”中国清洁空气联盟秘书处主任解洪兴说,环保部已公布了冬季错峰生产规划,但各地区还要做好本地研究,本地排放总量、哪里减排等都要规划好。“这不能是短线的,像污染源清单等要成为常规性的工作。”

解洪兴强调,短时间高浓度的空气重污染比长时间低浓度的对人体健康危害大很多。从今年开始,国家对重度污染天应急真正重视起来,红色预警一公布,各地就能紧急行动起来。“预警能力和应急措施与去年相比,有了巨大改善。”

2016年12月18日,北京景山俯瞰全城,城市被雾霾吞噬,故宫开启隐身模式。

据研究,我国大气环境容量跟当前排放量相比,超载非常严重。超载最严重地区是东部,污染物是二氧化硫、氮氧化物、一次性颗粒物和氨

“要实现空气质量改善的目标,没有减排只能靠风吹是没有出路的。污染减排是核心,是硬道理。”王金南说,但究竟主要污染物要削减多少?这就涉及到科学和技术问题。“

我们可以推算出这些污染物最大削减幅度应该是多少。如二氧化硫、氮氧化物、一次性颗粒物和氨至少要削减43%、45%、50%和40%左右。根据目前的削减进度,那就得到2030年了。而且每个省、每个市,都要做达标规划,把削减做得可操作、可实现。”

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