摘要
在2005年6月到7月间，采集了青岛市所辖的10个区市的表层土壤样，采样点选在农田、菜地和靠近公路两侧的区域。采用气相色谱和GC—MS法对青岛地区土壤中的有机氯农药和多氯联苯的污染现状进行了研究。研究结果表明：土壤中总的PCBs的含量水平在3．06～14．88ng／g之间，平均含量为8．04ng／g；总的OCPs的残留水平介于5．07-87．77ng／g之间，平均值为32．58ng／g，其中，∑HCHs占总OCPs的12．31%，∑DDTs占总OCPs的81．37％。DDT及其代谢物是青岛土壤中残留的主要有机氯农药，与国内外最新研究报道相比较，该地区土壤PCBs和OCPs污染较轻。经过分析得知，青岛地区土壤中PCBs的主要来源为大气的输送和沉降；六六六和DDT主要是过去的残留，不存在六六六的新污染源，但仍有少量的DDT或含DDT杂质的农药输入。
Soil samples from arable land,roadside land and vegetable land were collected in Qingdao orea in June and July 2005. The pollution levels of OCPs and PCBs in the soil were measured by gas chromatography and GC - MS. The values of PCBs in the soil were in a range of 3.06-14.88 ng/g with an average value of 8.04 ng/g. The residues of OCPs in the soil were in a range of 5.07-87.77 ng/g with an average value of 32.58 ng/g. ∑HCHs and ∑DDTs took over 12.31% and 81.37% of the total OCPs, respectively. DDT and its metabolites were main pollutants in the soil of Qingdao area. Compared to the reference data, the pollution burdens of PCBs and OCPs in the soil of Qingdao area were lower than those in other areas in China. HCHs and DDTs in the soil were mainly the residues of past. The main sources of PCBs were the transportation and deposition of the atmosphere. There were no new sources of HCHs, but few of DDTs or other pesticides adulterated DDT were used in Qingdao area.
出处
《青岛大学学报（工程技术版）》
CAS
2006年第2期42-48,共7页
Journal of Qingdao University(Engineering & Technology Edition)
基金
国家重点基础研究发展计划(973计划)资助项目(2003CB415003)
