摘要
以广东省某医疗垃圾焚烧厂为研究对象,通过采集分析处理厂及周边土壤和植物样品中的16种多环芳烃含量,了解焚烧厂多环芳烃分布特征、来源、污染程度.结果表明,医疗垃圾焚烧厂周边土壤受到一定程度的PAHs污染,16种多环芳烃有不同程度的检出,总PAHs含量为11.83~788.24ng/g,均值为236.681ng/g;研究区域盛行风下风向土壤中总PAHs含量明显高于盛行风上风向土壤中的含量,并且土壤中的总PAHs的浓度随着距离的增加呈现逐渐降低趋势;源解析结果表明,医疗垃圾焚烧厂焚烧和周边居民木材和煤的燃烧是土壤中PAHs的主要来源.
In this paper, the polycyclic aromatic hydrocarbons(PAHs) pollution in the soil around one medical waste incineration plants in Guangdong province was investigated. The distribution characteristics of PAHs contamination were investigated. The soil around medical waste incineration plants was polluted in a certain extent. Sixteen PAHs were detected in all soil samples. The total PAHs content of soil samples ranged from 11.83to 788.24ng/g with 236.681ng/g average. The PAHs content in the leeward soil samples were higher significantly than in the soil against the wind, and the PAHs content in soil decreased with the distance from incineration plant increased.Coal and wood and fossil fuels combustion were the dominant sources of PAHs in the study areas with the source apportionment.
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2013年第S1期108-112,共5页
China Environmental Science
基金
中央级环保公益性行业科研专项资助项目(201209022
201309067
2011467036
201309020)
关键词
医疗废物
焚烧
多环芳烃
分布
medical waste
incineration
PAHs
distribution
