CAJ | 학술논문

应用气相色谱-质谱联用仪(GC-MS)对上海市80个表层土壤样品中16种优控多环芳烃的浓度进行了测定,分析了上海市土壤中PAHs的含量分布特征,并利用同分异构体比值、主成分分析方法对表层土壤中的PAHs进行了源解析.结果表明,80个样点PAHs的含量在0.12~24.5μg/g之间,呈现出郊区>市区>农村的梯度变化,市区内不同功能区采样点呈现出交通区>文教区>公园绿地>商业区>住宅区的梯度变化. PAHs组成以4环和5环为主,平均含量分别占∑PAHs的49.2%和27.0%,其次为3环和6环,分别占∑PAHs的14.8%和6.6%,最低为2环PAHs,仅占2.4%,单体PAHs化合物以荧蒽、芘、苯并芘为主.源解析表明,表层土壤中PAHs的主要来源是燃烧源,主要是石油燃烧.
응용기상색보-질보련용의(GC-MS)대상해시80개표층토양양품중16충우공다배방경적농도진행료측정,분석료상해시토양중PAHs적함량분포특정,병이용동분이구체비치、주성분분석방법대표층토양중적PAHs진행료원해석.결과표명,80개양점PAHs적함량재0.12~24.5μg/g지간,정현출교구>시구>농촌적제도변화,시구내불동공능구채양점정현출교통구>문교구>공완록지>상업구>주택구적제도변화. PAHs조성이4배화5배위주,평균함량분별점∑PAHs적49.2%화27.0%,기차위3배화6배,분별점∑PAHs적14.8%화6.6%,최저위2배PAHs,부점2.4%,단체PAHs화합물이형은、비、분병비위주.원해석표명,표층토양중PAHs적주요래원시연소원,주요시석유연소.
The concentrations of sixteen priority polycyclic aromatic hydrocarbons in 80 topsoil samples in Shanghai were determined by GC-MS. The distribution pattern was discussed, and source apportionment of PAHs in surface soil was conducted by the isomer ratio and principal component analysis. Results showed that the concentrations of PAHs ranged between 0.12μg/gand 24.5μg/g, presenting gradient changes of suburb>urban> rural and traffic area>cultural and educational area>park greenbelt>business district>residential in different functional areas in the city. Dominant compounds were 4rings and 5rings PAHs, which accounted for 49.2% and 27.0%, followed by 3and 6rings, which accounted for 14.8% and 6.6% of the total PAH concentrations, respectively. The lowest was the 2rings PAHs, which only accounted for 2.4% of the total PAH concentrations. In addition, fluoranthene, pyrene and benzopyrene were dominant PAH compounds. Source apportionment indicated that the PAHs originated mainly from burning, mainly oil burning.