CAJ | 학술논문

采用超高效液相色谱系统(UPLC)荧光检测器法,测定了福州市区14条主要街道灰尘样品中属美国环境保护署(US EPA)优控的15种多环芳烃(PAHs)的质量分数,对其毒性进行了评估,并通过聚类分析、因子分析多元线性回归等方法,分析了灰尘中PAHs的来源. 结果表明:福州市区的w(PAHs)为1 029.5～5 182.0 μgkg,平均值为2 884.7 μgkg,在国内外城市中处于中等含量水平. 14个街道灰尘样品中有5个样品的w(PAHs)超过毒性效应区间低值(ERL),具有潜在的生态风险. 聚类分析发现,4号,5号,7号和12号采样点分别具有高比例的w(菲),w(苯并[b]荧蒽),w(荧蒽)和w(萘)的特殊来源.对样品中PAHs的来源解析显示,燃烧源占78%,石油泄漏源占22%.
채용초고효액상색보계통(UPLC)형광검측기법,측정료복주시구14조주요가도회진양품중속미국배경보호서(US EPA)우공적15충다배방경(PAHs)적질량분수,대기독성진행료평고,병통과취류분석、인자분석다원선성회귀등방법,분석료회진중PAHs적래원. 결과표명:복주시구적w(PAHs)위1 029.5～5 182.0 μgkg,평균치위2 884.7 μgkg,재국내외성시중처우중등함량수평. 14개가도회진양품중유5개양품적w(PAHs)초과독성효응구간저치(ERL),구유잠재적생태풍험. 취류분석발현,4호,5호,7호화12호채양점분별구유고비례적w(비),w(분병[b]형은),w(형은)화w(내)적특수래원.대양품중PAHs적래원해석현시,연소원점78%,석유설루원점22%.
The concentrations of 15 kinds of polycyclic aromatic hydrocarbons (PAHs),which are on the list of US EPA priority,in 14 main street dust samples in Fuzhou City were analyzed by UPLC with fluorescence detector.The toxicity of the PAHs in street dust was also evaluated.Meanwhile,the cluster method,factor analysis and multiple linear regression method were used to analyze the sources of PAHs.The results showed that the total concentrations of PAHs ranged countries.Among the 14 street dust samples,the total PAHs concentrations of five samples exceeded the effects range-low (ERL) and had potential ecological risks.The cluster method analysis showed there were high proportions of phenanthene,benzo(b)fluoranthene,fluoranthene and naphthelene in sampling sites 4,5,7 and 12,respectively.The major contributions of PAHs in the street dust samples were quantified as 78% from combustion and 22% from oil spills.