A comprehensive and detailed monitoring scheme was applied to examine more than 1000 organic micro-pollutants (OMPs) in drainage water samples collected from a rural village with informal end-of-life vehicle processing activities in northern Vietnam. Concentrations of total OMPs ranged from 8900 to 34,100 (median 11,400) ng L⁻¹. In our water samples, major classes of organic pollutants were n-alkanes, squalane, synthetic phenolic antioxidants and derivatives (SPAs), and polycyclic aromatic hydrocarbons (PAHs), which together accounted for 97% in average of total OMPs. Trace levels of polychlorinated biphenyls (PCBs) and brominated flame retardants (BFRs) such as polybrominated diphenyl ethers (PBDEs) and decabromodiphenyl ethane (DBDPE) were also detected. In particular, CB-11 (3,3′-dichlorobiphenyl), which is a minor component of technical PCB mixtures but is a dominant impurity in many organic pigments, was found in all the samples (median 0.20; range 0.14–0.23 ng L⁻¹; accounting for 5% in average of total PCBs). In general, concentrations of almost all the OMPs investigated in this study were lower than critical values for any ecotoxicological risk.

应用了全面而详细的监测计划，以检查从越南北部一个有非正式报废车辆加工活动的乡村收集的排水样品中的1000多种有机微污染物（OMP）。总OMP的浓度范围为8900至34,100（中位数11,400）ng L ^-1。在我们的水样，有机污染物的主要类别为ñ-烷烃，角鲨烷，合成酚类抗氧化剂和衍生物（SPA）和多环芳烃（PAH），它们合起来平均占总OMP的97％。还检测到痕量的多氯联苯（PCB）和溴化阻燃剂（BFR），例如多溴二苯醚（PBDEs）和十溴二苯乙烷（DBDPE）。特别是，在所有样品中均发现了CB-11（3,3'-二氯联苯），它是工业用PCB混合物的次要成分，但在许多有机颜料中是主要杂质（中位数为0.20；范围为0.14-0.23 ngL。^-1；平均占PCB总数的5％）。一般而言，本研究中调查的几乎所有OMP的浓度均低于任何生态毒理学风险的临界值。