珠三角秋季臭氧污染来源解析

被引:29
作者
沈劲 [1 ,2 ]
陈皓 [2 ]
钟流举 [1 ]
机构
[1] 广东省环境监测中心国家环境保护区域空气质量监测重点实验室
[2] 北京大学环境科学与工程学院
关键词
珠三角; 臭氧; 来源解析;
D O I
10.15985/j.cnki.1001-3865.2015.01.005
中图分类号
X515 [光化学烟雾];
学科分类号
摘要
秋季是珠三角臭氧污染最严重的季节,选取2004年秋季珠三角典型臭氧污染过程,运用臭氧来源解析技术等分析手段,研究珠三角臭氧污染特性,分析并量化各排放源区各类源对受体点的臭氧贡献。结果表明,东莞市对珠江口地区的臭氧峰值有重大贡献,下午2-3点东莞市前体物的臭氧贡献最大可达40ppb;而广州市区的前体物排放主要影响顺德区和南海区。在珠三角,排放源区一般对下风向40km范围内的地区臭氧贡献最大。秋季大多数情况下珠三角西部(江门东湖)臭氧受中部主要排放源区臭氧前体物排放与输送的影响很大,广州和佛山地区对江门东湖的臭氧峰值贡献达50ppb左右。交通尾气排放对珠三角各受体点的臭氧贡献最大,交通源对重污染区受体点臭氧的贡献最高可达40ppb50ppb。
引用
收藏
页码:25 / 30
页数:6
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