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京津冀统一重污染预警分级标准

2016-11-22 04:01:40   新京报

变化4

污染天部分污染工序停限产

新《预案》对工业企业停限产措施进行了细化,以污染减排力度不降为目标,突出“精准治污”。进一步梳理出“负面工序”及“正面清单”。

将停限产目录内企业“整体停限产”细化为有大气污染排放的工序停限产,其他非污染工序可正常生产;同时,制定保障城市正常运行的企业、建筑工程清单,预警时在达标排放的前提下有序生产,尽可能减少重污染预警对社会生产、生活的影响。

应急预案为何5年4版本?

是随着重污染天气特点的发展变化、日常治理措施不断深化进行的必要调整

自2012年率先在全国制定空气重污染应急预案,五年来,北京已经先后出台了4个版本的重污染应急预案,其中的预警分级、应急减排措施也在不断调整。

对于北京重污染应急预案短时间内的多次变化,北京市环保局应急处处长王斌表示,空气重污染应急预案几年来数次修订,一方面是伴随着对重污染天气过程认识的不断深化、技术手段的不断进步;另一方面,也是随着重污染天气特点的发展变化、日常治理措施不断深化进行的必要调整。

“在2013年的版本里,重污染预警分级对污染物的峰值浓度提出了明确要求”,王斌表示,但是在2013年到2015年这段时间,北京的空气重污染呈现出“持续时间比较长,但是峰值浓度不高”的特点,所以在2015年重污染应急预案修订时,把重污染的持续时间作为重要指标,剔除了在峰值浓度上的要求。而最新修订的《北京市空气重污染应急预案》,在预警分级上,又重新对峰值浓度提出了要求。

此外,在预警措施上,4个版本的预案可以看到应急措施在逐步加严。王斌表示,2012年,应急预案中,首先出台了对土石方施工的强制限制措施;2013年,应急预案中提出红色预警启动时机动车单双号限行;而在今年最新修订的预案中,又对高污染排放机动车进行了限制,“橙警”启动时,国Ⅰ、国Ⅱ车率先停驶。

“未来随着重污染形式、特点的变化,以及日常治理的深入,不排除还将继续修订预案。”王斌表示,今后的应急预案,应急措施将更加严格,力度也将加大,同时精细度更高,力求做到精准治污。

启动预案能否消除重污染?

消除重污染需要常态化的减排措施,尽管这个过程可能很漫长,但这才是“治本之策”

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