摘要
2005年3～5月对广州市主要河涌底泥进行了较为系统的采样分析。分析评价结果表明，广州市河涌底泥受有机物、植物营养盐、石油类和重金属污染比较严重，其它污染物，如硫化物、氰化物、氟化物、挥发酚等以及难降解有毒有机物，包括DDT、666、PCBs、PAHs等污染并不严重，污染总体呈由老城区向外围逐步降低的态势。随后根据河涌底泥的主要污染特征进行了较为粗略的污染区划，并指出污染重点控制区域。
The sediment samples systematically sampled from the brooklets of Pearl Rive in Guangzhou were analyzed for chemical pollutants during March to May, 2005. The results show that, the main contaminants in sediments are organic wastes, nutrients, petroleum and heavy metals, and the other contalnillants including sulfide, cyanide, fluoride, volatile phenolic compounds and POPs （such as DDT, BHC, PCBs and PAHs） are low in sediments. The concentrations of pollutants in sediments show a pattern decreased from urban districts to outlying districts. The polluted zones are plotted according to the concentrations of main contaminants in sediments, and the key zones for sediment pollution control are also pointed out.
出处
《广州环境科学》
2005年第4期1-5,16,共6页
Guangzhou Environmental Science
关键词
底泥污染
河涌
广州市
sediment pollution brooklet Guangzhou city
