ELA for petroleum development engineering includes many factors,like all development engi-neering projects, oil pollutant is a typical pollutant in ELA for petroleum development projects.

• 油田开发建设工程水环境影响评价的评价因子包括多项，而石油类污染物往往是油田开发建设工程环境影响的典型污染物，也是最重要的污染物。