摘要
对照国家环保总局最近发布的 GWPB3— 1 999《锅炉大气污染物排放标准》,对几种日常最常用的中、小型燃煤锅炉进行了达标排放条件下的地面最大落地浓度预测。结果表明 ,在烟气达标排放和常规气象条件下 ,其造成的地面 SO2 最大落地浓度在国家环境空气质量标准 (二级 )的 2 8%以下 ,远小于规定浓度限值 ,烟尘的地面影响浓度更可忽略。因此在一般环境影响评价中 ,只要锅炉烟气做到达标排放 ,则可不作该两因子的地面浓度预测 。
A predicition of ground level concentration of SO 2 and fly ash emitted by small or middle size coalburning boilers was presented.The results indicated that under the requirement of national emission standard for coalburning boilers(GWPB31999),the ground level concentrations of SO 2 and fly ash were much lower than the requirement of ambient air quality standard(GB30951996).So in most cases,the impact of the small or middle size boiler's emissions,such as 20 t/h or below,can be omitted when the emission standard has been met.Therefore,it is no need to predict the concentration distribution of SO 2 and fly ash emitted by coal buming boilers in environment impact assessment.
出处
《环境污染与防治》
CAS
CSCD
北大核心
2000年第3期35-36,43,共3页
Environmental Pollution & Control
