CAJ | 학술논문

采用气相色谱对福建闽西北地区水稻土中有机氯农药(HCHS、DDTS)残留量进行了测定，探讨其残留特征。结果表明：调查区土壤中HCHS和DDTS残留量分别为0.41~9.61μg/kg和6.51~469.50μg/kg，土壤HCHS残留量均低于土壤环境质量标准(GB 15618-1995)的一级标准限量值(50μg/kg)，但有23.1%的样点土壤OCPS残留总量高于50μg/kg。OCPS主要残留物是DDTS。土壤中HCHS异构体的残留特征是β-HCH>r-HCH>α-HCH>δ-HCH，其中 HCHS 以β-HCH 残留最高；土壤 DDTS 残留特征是 pp'-DDT>op'-DDT>pp'-DDD>pp'-DDE，土壤 DDT 残留以 pp'-DDT 为主，且 pp'-DDT/(DDD＋DDE)大于1，说明DDTS可能有新的污染输入。
채용기상색보대복건민서북지구수도토중유궤록농약(HCHS、DDTS)잔류량진행료측정，탐토기잔류특정。결과표명：조사구토양중HCHS화DDTS잔류량분별위0.41~9.61μg/kg화6.51~469.50μg/kg，토양HCHS잔류량균저우토양배경질량표준(GB 15618-1995)적일급표준한량치(50μg/kg)，단유23.1%적양점토양OCPS잔류총량고우50μg/kg。OCPS주요잔류물시DDTS。토양중HCHS이구체적잔류특정시β-HCH>r-HCH>α-HCH>δ-HCH，기중 HCHS 이β-HCH 잔류최고；토양 DDTS 잔류특정시 pp'-DDT>op'-DDT>pp'-DDD>pp'-DDE，토양 DDT 잔류이 pp'-DDT 위주，차 pp'-DDT/(DDD＋DDE)대우1，설명DDTS가능유신적오염수입。
The residue characteristics of organochlorine pesticides (OCPS) were studied under the soil of rice. In the study, hexachlorocyclohexane (HCHS) and dichlorodiphenyl trichloroethane (DDTS) were analyzed using gas chromatography equipped with ECD detector. The results showed that HCHS and DDTS were found widely in all samples and with a range of 0.41-9.61μg/kg and 6.51-469.50 μg/kg respectively. The content of HCHS was much lower than the soil environmental quality standard (GB 15618-1995), and it limits the quantity being worth 50 μg/kg, but 76.9% of samples had a total DDTS residue of less than 50 μg/kg. And the DDTS, which was the main components in residues of organochlorine pesticides, took over 96.2% of the total. The residual characteristics of HCHS isomers in the soil was β-HCH>γ-HCH>α-HCH>δ-HCH, β-HCH concentration was higher than other HCHS isomers. The residual characteristics of DDTS isomers in the soil was pp'-DDT>op'-DDT>pp'-DDE>pp'-DDD, and the pp'-DDT was the main components in residues of DDTS, pp'-DDT/(DDD+DDE) value in soil was greater than one, this suggested that the new DDTS were input in the soil of rice.