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绿色度方法中环境影响因子权值的确定
Authors
付超
张锁江
+3 more
张香平
李谦
闫瑞一
Publication date
1 January 2008
Publisher
Abstract
绿色度方法中各环境影响因子权值的确定非常重要而又颇有争议。本文采用目标值法,通过比较各类环境影响因子的环境现状和目标值,计算得到绿色度方法中各类环境影响因子的权值。提出依据环境政策法规规定的各类污染物的排放阈值来确定目标值,与目标值的其他确定方法相比,本方法避免了采用环境“真实”影响值,可更简捷地用于化工环境影响评价。以北京地区为例,计算结果表明近几年北京地区进行化工环境影响评价时,应重点关注水体人类非致癌毒性、光化学烟雾和富营养化等区域性污染。采用本文确定权值的方法,对合成甲基丙烯酸甲酯的两种化工路线,即异丁烯法(i-C4)和丙烯法(C3)进行了绿色度评价和分析,表明i—C4法路线更为绿色。本研究为绿色度方法用于各地区化工环境影响评价提供了基础
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Last time updated on 11/04/2021