CAJ | 학술논문

对天津市11个采样点的空气颗粒物和土壤样品进行采样调查,采用气相色谱/质谱联用仪分析样品中15种酞酸酯类化合物(PAEs)的含量.结果表明,11个采样点空气颗粒物样品中总酞酸酯类化合物(TPAEs)以体积计质量浓度为90.87～1 355.70 ng/m~3,以质量计质量浓度为783.84～8 712.37 mg/kg,土壤中TPAEs质量浓度为0.53～2.53 mg/kg.邻苯二甲酸二丁酯(DBP)与邻苯二甲酸二(2-乙基己基)酯(DEHP)是空气颗粒物和土壤样品中的主要污染物.土壤与空气颗粒物中TPAEs和DBP存在相关关系,Pearson相关系数分别为0.825和0.864(双尾检验,显著性水平0.01),且空气颗粒物中各种PAEs浓度为土壤PAEs浓度的数百至数万倍,说明空气沉降可能是土壤PAEs污染的主要原因之一.
대천진시11개채양점적공기과립물화토양양품진행채양조사,채용기상색보/질보련용의분석양품중15충태산지류화합물(PAEs)적함량.결과표명,11개채양점공기과립물양품중총태산지류화합물(TPAEs)이체적계질량농도위90.87～1 355.70 ng/m~3,이질량계질량농도위783.84～8 712.37 mg/kg,토양중TPAEs질량농도위0.53～2.53 mg/kg.린분이갑산이정지(DBP)여린분이갑산이(2-을기기기)지(DEHP)시공기과립물화토양양품중적주요오염물.토양여공기과립물중TPAEs화DBP존재상관관계,Pearson상관계수분별위0.825화0.864(쌍미검험,현저성수평0.01),차공기과립물중각충PAEs농도위토양PAEs농도적수백지수만배,설명공기침강가능시토양PAEs오염적주요원인지일.
Atmospheric particle and soil were sampled from 11 sites of Tianjin. 15 kinds of phthalic acid ester (PAEs) in these samples were determined by gas chromatography-mass spectrometry (GC/MS). Total contents of the 15 PAEs compounds(TPAEs)in 11 atmospheric particles samples were calculated, with the volume concentration ranged from 90.87 to 1 355.70 ng/m~3 and mass concentration ranged from 783.84 to 8 712.37 mg/kg. The mass concentration of TPAEs in soil samples ranged from 0.53 to 2.53 mg/kg. The dominant phthalates were DBP and DEHP in both atmospheric particles and soils. The correlation of PAEs in atmospheric particles and soils was ana-lyzed, and the result demonstrated that TPAEs and DBP had significant correlation with the coefficient of 0.825 and 0.864 (two-tailed test, significant at the 0.01 level). The content of PAEs in atmospheric particles could thousandstimes higher than that in soil, which means atmospheric particles sedimentation might be one of reason for PAEs pol-lution in soil.