辽东与山东半岛土壤中有机氯农药残留特征研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

国家自然科学基金项目(40671166, 41371448)资助


Residues of organochlorine pesticides in soils of Liaodong and Shandong Peninsulas
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    2005—2008年在辽东半岛和山东半岛15个市县采集了265个土壤样品,对其10种有机氯农药进行了分析,研究该地区土壤中硫丹、HCH和DDT残留情况及其空间分布特征。结果表明,山东半岛土壤中硫丹残留量为6.30 μg kg-1,为辽东半岛的9倍;HCHs残留量为4.82 μg kg-1,为辽东半岛的1.3倍;辽东半岛土壤中DDTs残留量为45.70 μg kg-1,为山东半岛的2.5倍。山东半岛α-HCH、 p,p' -DDE、 p,p'-DDT的检出率均高于80%,辽东半岛β -HCH、 p,p'-DDE检出率均高于80%。不同种植方式,辽东半岛土壤OCPs残留量:果园>玉米地>菜地>草地>水稻田;山东半岛土壤OCPs残留量:果园>菜地>玉米地>麦田>棉田。与国内其他地区相比,该地区硫丹残留量相对较低,HCHs和DDTs残留量超过国家《土壤环境质量标准》(GB15618-2008)一级标准的土壤样品分别占样品总数的4.53%和9.05%。

    Abstract:

    Organochlorine pesticides are likely to travel over a long distance in the atmospheric environment, bringing about adverse effects on human health and ecological environment. Owing to the excessive use of pesticides in the past, the detection rate of OCPs residue in soil is still quite high, though the residue in soil has so far been greatly reduced. During the period of 2005—2008, from 15 cities or counties in the Liaodong and Shandong Peninsulas collected were a total of 265 surface (0~20 cm) soil samples, of which 151 soil samples were from the Liaodong Peninsula, involving 5 types of land use (vegetable garden, grassland, orchard, paddy field and corn field) and 114 soil samples from the Shandong Peninsula, also involving five types of land-uses (vegetable garden, wheat field, cotton field, orchard, and corn field). Before the soil samples were analyzed for α- and β-endosulfan, endosulfan sulfate, α-, β-, γ- and δ-HCH, p,p’ -DDT, p,p’-DDE and p,p’-DDD with GC-ECD, they were subjected to ultrasonic extraction using acetone/petroleum ether(1/3,V/V), purification with a glass chromatography column, and leaching with hexane/dichloromethane(1/1,V/V) for constant volume. On such a basis, annual variation and spatial distribution of endosulfan, HCHs and DDTs residues in the soils of the studied regions and volumes of OCP residues in the soils relative to type of land use were analyzed and characterized. Results show that the residue of endosulfan and HCHs in the soils of the Shandong Peninsula was 6.30 μg kg-1 and 4.82 μg kg-1, respectively, about 9 and 1.3 times as high as that in the soils of the Liaodong Peninsula, while the residue of DDTs in the soils of the Liaodong Peninsula was 45.70 μg kg-1, about 2.5 times as high as that in the soils of the Shandong Peninsula. The detection rates of α-HCH, p,p’-DDE and p,p’-DDT in the soils of the Shandong Peninsula were all higher than 80%, while the detection rates of β-HCH and p,p’-DDE in the soils of the Liaodong Peninsula were above 80%, too. HCHs and DDTs residues were quite common in the soils of the studied regions. It was found that the highest content of endosulfan residue was in Xingcheng, being 1.294 μg kg-1, whereas the lowest was in Laizhou, being 0.062μg kg-1; the highest content of HCHs residue was in Gaizhou, being 10.46μg kg-1, whereas the lowest was in Dawa, being 0.618μg kg-1; and the highest content of DDTs residue was in Xingcheng, being 110.9μg kg-1, whereas the lowest was in Dawa, being 0.867μg kg-1. In terms of residue content in the soil, the fractions of OCPs displayed an order of DDTs > HCHs > endosulfan in the Liaodong Peninsula and an order of DDTs > endosulfan > HCHs in the Shandong Peninsula, while in terms of content of OCPs residues in soil, the five types of land use followed an order of orchard (59.92μg kg-1) > corn field (56.14μg kg-1) > vegetable field (39.35μg kg-1) > grassland (12.71μg kg-1) > paddy field (10.29μg kg-1) in the Liaodong Peninsula and an order of orchard (38.16μg kg-1) > vegetable field (29.04μg kg-1) > corn field (26.72μg kg-1) > wheat field (25.73μg kg-1) > cotton field (18.63μg kg-1) in the Shandong Peninsula. The mean content of endosulfan residues in the sampling regions was 3.09 μg kg-1, lower than that in other areas in China. And the mean content of HCHs and DDTs residues was 4.69 and 26.83 μg kg-1, respectively, both below Grade I criteria of the National Standard for Soil Environment Quality (GB15618-2008), though content of the residues in some individual samples were found to be higher than the criteria. Samples with HCHs and DDTs residues higher than the criteria accounted for 4.53% and 9.05%, respectively, of the total number of samples. Among them, only 2 samples exceeded Grade II criteria of the national standard in content of HCHs residues and 5 did in content of DDTs residue. To sum up, in the soils of the two peninsulas the contents of endosulfan, HCHs and DDTs residues were fairly low.

    参考文献
    相似文献
    引证文献
引用本文

朱英月,刘全永,李 贺,佟晓颖,李绍敏,李清波.辽东与山东半岛土壤中有机氯农药残留特征研究[J].土壤学报,2015,52(4):888-901. DOI:10.11766/trxb201406070271 Zhu Yingyue, Liu Quanyong, Li He, Tong Xiaoying, Li Shaomin, Li Qingbo. Residues of organochlorine pesticides in soils of Liaodong and Shandong Peninsulas[J]. Acta Pedologica Sinica,2015,52(4):888-901.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2014-06-07
  • 最后修改日期:2015-01-16
  • 录用日期:2015-03-03
  • 在线发布日期: 2015-04-24
  • 出版日期: