我国环境介质中多环芳烃的分布及其生态风险  

A review on distribution and risks of pollution from polycyclic aromatic hydrocarbons(PAHs) in China

作　　者：程家丽[1] 黄启飞[2] 魏世强[1] 王琪[2] 唐阵武[3] 

机构地区：[1]西南大学资源环境学院重庆市农业资源与环境研究重点实验室,重庆400716 [2]中国环境科学研究院,北京100012 [3]北京师范大学环境学院水环境模拟国家重点实验室,北京100875

出　　处：《环境工程学报》2007年第4期138-144,共7页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(50508042)

摘　　要：持久性有机污染物多环芳烃(PAHs)在我国环境介质中广泛分布,美国EPA规定的16种优先控制多环芳烃大多在我国大气、水体、沉积物、土壤和生物体内检出。总结了我国环境介质中PAHs污染水平及特点,分析了其存在的环境风险。我国大气中PAHs污染较重,尤其是北方。水体已普遍受PAHs污染,其中部分水体污染严重;沉积物多环芳烃污染大多处于低生态风险水平,但沉积记录研究表明有越来越严重的趋势。我国土壤和生物体PAHs含量较低,污染生态风险较小。部分区域蔬菜中PAHs含量较高,存在不可忽视的生态风险。Being a representative persistent organic pollutant（POP） ,PAHs was widespread in China and 16 PAHs as priority pollutants promulgated by US Environmental Protection Agency （EPA） had nearly been determined in various environmental media including atmosphere, water, sediment, soil and organism. This research represents an assessment of the current state of pollution and risk from polycyclic aromatic hydrocarbons （PAHs） in China. On a national basis, PAHs levels in atmosphere were relatively high and a high biological impairment were most likely to be posed in China,expecially in north. Furthermore, surface water was universally polluted by PAHs and heavily in some areas. The concentration of PAHs in sediments tended to be a range-low risk in most areas,while distribution profile in sediment cores showed a tendency of rapidly increase with economic development. With the small amount of investigation in China, PAHs pollution associated with low adverse biological effects in soils and organism, but high risk in vegetables in limited areas.

关 键 词：多环芳烃 环境介质 分布 生态风险 

分 类 号：X5[环境科学与工程—环境工程]