吉林大安油田开发对周边农田土壤影响的研究

按照土壤环境质量标准及背景值对吉林大安油田周边农田土壤进行评价，油田区内土壤中Cu、Pb、As、Cd、Cr＋6等污染物均在二级标准限值内，土壤环境质量良好。油田区内土壤除石油类、硫化物、挥发酚外的其它污染物含量与背景土壤相比有一定差异，但差异不明显，高低相差1倍以内。各监测点各类土壤中石油类、硫化物均比背景土壤偏高，挥发酚差异不明显；钻井井场土壤石油类比背景土壤高76倍，采油井场高4倍，旱田和草地土壤石油类与背景土壤基本相当。

Study of Effection on Soil aroud FarmLand by Exploited Oil Field in Daan,Jilin

According to the soil quality standard and background,the farm around oil field in Daan,Jinlin was evaluated.The results showed that the soil belonged to average agricultural farm in which the pollutants of Cu、Pb、As、Cd、Cr+6 were all in the limit of secondary standard.Also we found that except the petrochemicals,sulfides and volatile phenol,the other pollutants in the soil were different from the background soil,but the difference is not obvious.And the contents of the petrochemicals,sulfides in the soil in all the monitor stations were higher than that in the background soil except the volatile phenol.The petrochemicals in drilling field were 76 times higher than that in the background soil and 4 times higher than that in the oil extraction.The petrochemicals in the farm and grassland were the same as that in the background soil