The pollution of surface water, urban and industrial wastewater in Beijing area had been learned from the analytical datas. Three phthalates (BBP, DBP, DEHP) were main contaminants in chemical wastewater.

• 在化工行业废水中主要存在3类邻苯二甲酸酯的污染(BBP、DBP和DEHP)，有些化工厂排放的废水中邻苯二甲酸酯的含量较高，造成的污染较为严重。