高红霞, 刘英莉, 关维俊, 冯鹏绵, 李清钊, 刘楠, 周秀艳. 污灌土壤中多环芳烃的残留水平及其种类分析[J]. 环境与职业医学, 2014, 31(1): 33-35. DOI: 10.13213/j.cnki.jeom.2014.0008
引用本文: 高红霞, 刘英莉, 关维俊, 冯鹏绵, 李清钊, 刘楠, 周秀艳. 污灌土壤中多环芳烃的残留水平及其种类分析[J]. 环境与职业医学, 2014, 31(1): 33-35. DOI: 10.13213/j.cnki.jeom.2014.0008
GAO Hong-xia , LIU Ying-li , GUAN Wei-jun , FENG Peng-mian , LI Qing-zhao , LIU Nan , ZHOU Xiu-yan . Residue Levels and Types of Polycyclic Aromatic Hydrocarbons in Wastewater Irrigated Soil[J]. Journal of Environmental and Occupational Medicine, 2014, 31(1): 33-35. DOI: 10.13213/j.cnki.jeom.2014.0008
Citation: GAO Hong-xia , LIU Ying-li , GUAN Wei-jun , FENG Peng-mian , LI Qing-zhao , LIU Nan , ZHOU Xiu-yan . Residue Levels and Types of Polycyclic Aromatic Hydrocarbons in Wastewater Irrigated Soil[J]. Journal of Environmental and Occupational Medicine, 2014, 31(1): 33-35. DOI: 10.13213/j.cnki.jeom.2014.0008

污灌土壤中多环芳烃的残留水平及其种类分析

Residue Levels and Types of Polycyclic Aromatic Hydrocarbons in Wastewater Irrigated Soil

  • 摘要: 目的 观察污水灌溉土壤多环芳烃(PAHs)的残留水平和种类。

    方法 选取2个典型污灌农田(A、B)为研究对象,清洁水灌溉农田C为对照,采集土壤样品14个,采用超声振荡法提取土壤中的有机污染物,用高效液相色谱仪(HPLC)对土壤中的16种PAHs进行分析。

    结果 A、B两个污灌区土壤PAHs总量分别为1308.0μg/kg和1046.2μg/kg,达到了重污染水平,明显高于对照区C(189.1μg/kg,未受污染水平)。污灌区土壤中PAHs主要以4环以上的高环类为主, PAHs主要来源于化石燃料高温燃烧,同时存在石油类的污染。

    结论 污水灌溉可导致土壤的PAHs污染。

     

    Abstract: Objective To determine the residue levels and types of polycyclic aromatic hydrocarbons (PAHs) in wastewater irrigated soil.

    Methods Two typical wastewater irrigated farmlands, A and B, were chosen for investigation, and a clean water irrigated farmland C was used as control. Soil samples were collected and organic substances were extracted by ultrasonic oscillation. Sixteen kinds of PAHs were analyzed using high performance liquid chromatography (HPLC).

    Results The PAHs concentrations in the farmlands A and B were 1 308.0 μg/kg and 1 046.2 μg/kg respectively (categorized as heavily polluted), and were significantly higher than that in the farmland C, which was 189.1μg/kg (categorized as not polluted). Most of the soil samples contained PAHs with 4 or more rings which were originated primarily from high temperature combustion of fossil fuels.

    Conclusion Wastewater irrigation may cause soil pollution by PAHs.

     

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