梅州土壤及底泥有机氯农药检测与评价

Detection and Assessment of Organochlorine Pesticides in the Soils and Sediments from Mei-zhou

采用气相色谱法对梅州市区城郊土壤及梅州境内梅江流域底泥中有机氯农药的含量进行了检测.结果表明,梅州市区城郊土壤未检测出有机氯农药;梅州境内梅江流域底泥中未检测出HCHs,DDTs DDTsDDTs的检出率较低,可能来源于早期工业DDT产品残留;生态风险评价显示,研究区域土壤和底泥的OCPs对生物造成不利影响的可能性低,生态风险低.

The content of organochlorine pesticides in Meizhou suburban soil and Meijiang river basin sediment was determined by gas chromatography. The results showed that organochlorine pesticides were not detected in the suburban soil of Meizhou city;HCHs were not detected in the sediment of Meijiang River Basin Meizhou, and the detection rate of DDTs was low, which may come from the residue early industrial DDT products;The ecological risk assessment shows that the OCPs of soil and sediment in study area have low possibility of adverse impact on organisms and ecological risk.