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文章摘要
遵义市PM10中元素污染特征、来源与生态风险评价
Pollution Characteristics,Sources and Ecological Risk Assessment of Elements in PM10 in Zunyi City
  
DOI:
中文关键词: PM10  元素污染  富集因子  生态风险评价  遵义市
英文关键词: PM10  Elements pollution  Enrichment factors  Ecological risk assessment  Zunyi city
基金项目:国家自然科学基金资助项目(41265008);贵州省环境保护厅环境科技基金资助项目(黔环科[2011]6号)
作者单位
孙哲 贵州大学资源与环境工程学院 
李金娟 贵州大学资源与环境工程学院 
郭兴强 贵州大学资源与环境工程学院 
赵晓韵 贵州大学资源与环境工程学院 
王红宇 贵州大学资源与环境工程学院 
袁旭 贵州省农产品质检中心 
刘应学 遵义市环境监测中心站 
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中文摘要:
      采集2012年3月—2013年2月遵义市丁字口(市区点)、凤凰山(背景点)监测点的PM10样品,并对PM10中元素污染特征、来源和生态风险进行分析与评价。结果表明,遵义市PM10质量浓度季节变化为:冬季>春季>秋季>夏季,且市区点高于背景点,冬季超标率均为100%。PM10中As、Pb、Hg、Mn质量浓度市区点高于背景点,且均为冬季最高。富集因子分析表明,Pb、As、Cd、Hg、Mn、Cu、Zn来自人为污染,生态危害顺序为:Cd>Pb>As>Cu>Zn>Ni>Cr,其中 Cd 的潜在生态危害为极强。
英文摘要:
      PM10 samples were simultaneously collected at Dingzikou sampling site(urban site) and Fenghuang mountain sampling site( background site )from March 2012 to February 2013 in Zunyi city,and the pollution characteristics,sources and ecological risk of elements in PM10 were analyzed and assessed.The results indicated that the seasonal variations of average PM10 concentrations ranked as:winter>spring>autumn>summer,urban site were higher than background site,and compared with Ambient air quality standards,PM10 at two sites exceeded the standard by 100% in winter.The concentration of As,Pb,Hg,Mn in PM10 were higher in urban site than those of in background site,and for which were highest for seasonal variation winter.The results of enrichment factor showed that Pb,As,Cd,Hg,Mn,Cu and Zn in PM10 mainly sourced from anthropogenic pollution.The order of potential ecological risk indexes of elements in PM10was Cd>Pb>As>Cu>Zn>Ni>Cr,in which the potential ecological risk degree of Cd reached terribly strong.
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