太原科技大学学报
太原科技大學學報
태원과기대학학보
JOURNAL OF TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
2014年
3期
231-235,236
,共6页
张啸%崔阳%张桂香%何秋生%钱天伟
張嘯%崔暘%張桂香%何鞦生%錢天偉
장소%최양%장계향%하추생%전천위
多环芳烃(PAHs)%农田土壤%太原盆地%山西
多環芳烴(PAHs)%農田土壤%太原盆地%山西
다배방경(PAHs)%농전토양%태원분지%산서
PAHs%AgriculturAl soil%TAiyuAn bAsin%ShAnxi
本研究以太原盆地某地农田土壤为研究对象,报道了不同深度的土壤中多环芳烃( PAHs)的污染水平及分布规律。结果表明表层土壤(0~20 cm)中16种 PAHs(Σ16-PAHs)总浓度最高,平均值为210μg·kg-1,其次是40~60 cm,平均值为107μg·kg-1,20~40 cm 土壤中Σ16-PAHs 最低,平均值为39μg·kg-1.各深度土壤中不同环数的 PAHs 浓度水平为3环 PAHs >4环 PAHs >5环 PAHs >6环 PAHs >2环 PAHs;对于 PAHs 单体来说,菲含量水平最高,而苊烯含量水平最低.特征比值分析结果表明0~20 cm 和20~40 cm 土壤中 PAHs 来源基本一致,可能有石油源的输入以及石油、煤和生物质等的燃烧,而40~60 cm 土壤中 PAHs 除了有石油、煤和生物质燃烧源以外,受石油源输入的影响更大,可能与石油产品泄露有关。
本研究以太原盆地某地農田土壤為研究對象,報道瞭不同深度的土壤中多環芳烴( PAHs)的汙染水平及分佈規律。結果錶明錶層土壤(0~20 cm)中16種 PAHs(Σ16-PAHs)總濃度最高,平均值為210μg·kg-1,其次是40~60 cm,平均值為107μg·kg-1,20~40 cm 土壤中Σ16-PAHs 最低,平均值為39μg·kg-1.各深度土壤中不同環數的 PAHs 濃度水平為3環 PAHs >4環 PAHs >5環 PAHs >6環 PAHs >2環 PAHs;對于 PAHs 單體來說,菲含量水平最高,而苊烯含量水平最低.特徵比值分析結果錶明0~20 cm 和20~40 cm 土壤中 PAHs 來源基本一緻,可能有石油源的輸入以及石油、煤和生物質等的燃燒,而40~60 cm 土壤中 PAHs 除瞭有石油、煤和生物質燃燒源以外,受石油源輸入的影響更大,可能與石油產品洩露有關。
본연구이태원분지모지농전토양위연구대상,보도료불동심도적토양중다배방경( PAHs)적오염수평급분포규률。결과표명표층토양(0~20 cm)중16충 PAHs(Σ16-PAHs)총농도최고,평균치위210μg·kg-1,기차시40~60 cm,평균치위107μg·kg-1,20~40 cm 토양중Σ16-PAHs 최저,평균치위39μg·kg-1.각심도토양중불동배수적 PAHs 농도수평위3배 PAHs >4배 PAHs >5배 PAHs >6배 PAHs >2배 PAHs;대우 PAHs 단체래설,비함량수평최고,이액희함량수평최저.특정비치분석결과표명0~20 cm 화20~40 cm 토양중 PAHs 래원기본일치,가능유석유원적수입이급석유、매화생물질등적연소,이40~60 cm 토양중 PAHs 제료유석유、매화생물질연소원이외,수석유원수입적영향경대,가능여석유산품설로유관。
This study investigAted the levels And distribution chArActeristics of PAHs in different depths of Agricul-ture soils collected from TAiyuAn bAsin. The results indicAted thAt the AverAge concentrAtions of Σ16-PAHs in the top soils(209. 63 μg·kg-1 )were higher thAn those in deeper ones. The AverAge concentrAtions of Σ16-PAHs soils from the depth of 20-40 cm(38. 98 μg·kg-1 )were lower thAn those from the depth of 40-60 cm(107. 06 μg·kg-1 ). The concentrAtions of Σ16-PAHs in the top soils decreAsed from upstreAm to downstreAm of Wenyu River. PAHs in soils from different depths showed the following order:3-ring PAHs > 4-ring PAHs > 5-ring PAHs > 6-ring PAHs > 2-ring PAHs. For the individuAl PAHs,phenAnthrene hAd the highest concentrAtion,while AcenAphthylene hAd the lowest concentrAtion. The results of source AnAlysis indicAted thAt PAHs in 0-20 cm And 20-40 cm soils were similAr,And probAbly cAme from petroleum,petroleum And coAl/ biomAss combustion. For PAHs in 40-60 cm soils derived be-sides from petroleum,petroleum And coAl/ biomAss combustion,it wAs mAinly from petroleum input which might be relAted to the leAkAge of petroleum.