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首页> 外文期刊>Environmental Earth Sciences >Accumulation and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in soils around oil sludge in Zhongyuan oil field, China
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Accumulation and risk assessment of polycyclic aromatic hydrocarbons (PAHs) in soils around oil sludge in Zhongyuan oil field, China

机译：中原油田油泥周围土壤中多环芳烃的积累及风险评估

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摘要

In this paper, the contents of polycyclic aromatic hydrocarbons (PAHs) in soil samples around three different oily sludge plants in winter were analyzed by high performance liquid chromatography (HPLC) and the pollution degree with PAHs in soil samples was determined. Soil samples were collected from the agricultural soil around three different oily sludge plants (the Third Wenming Plant, the Third Mazhai Plant, and the Fourth Wener Plant) along with the leeway in Zhongyuan oil field. The distances from collected sample sites to oily sludge plants are 10, 20, 50, 100, 200, and 500 m, respectively. The results show that the contents of PAHs in soil samples decrease dramatically with the increase of the distance from the oily sludge, and that the PAHs with 2–4 rings are major pollutants in the oily sludge and soil samples. The main factors, which influenced the distribution of PAHs are discussed. Based on Nemero Index P, the classification evaluation shows that the soils around the oily sludge are heavily polluted in winter. The health risk assessment and ecological risk assessment of the soils around the oily sludge in Zhongyuan oil field in winter are analyzed.
机译：本文采用高效液相色谱法（HPLC）分析了冬季三种不同油泥厂周围土壤样品中多环芳烃的含量，并确定了土壤样品中多环芳烃的污染程度。沿中原油田的回旋余地，从三个不同的含油污泥厂（第三温明厂，第三麻寨厂和第四Wen​​er厂）周围的农业土壤中收集土壤样品。从收集的采样点到油性污泥厂的距离分别为10、20、50、100、200和500m。结果表明，土壤样品中PAHs的含量随着与油泥的距离的增加而显着降低，带有2–4个环的PAHs是油泥和土壤样品中的主要污染物。讨论了影响PAHs分布的主要因素。根据Nemero指数P，分类评估表明，油性污泥周围的土壤在冬季受到严重污染。分析了冬季中原油田含油污泥周围土壤的健康风险评价和生态风险评价。

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