贵州红枫湖地区水稻土多氯联苯和有机氯农药的残留
Residue of PCBs and OCPs in the Paddy Soil from Hongfeng Reservoir Area, Guizhou, China
查看参考文献42篇
|
文摘
|
调查了红枫湖周边水稻土的7种多氯联苯（PCBs）和13种有机氯农药（OCPs）的含量分布．结果显示，DDTs及其代谢产物、HCHs的异构体、异狄氏剂、七氯等有机氯农药及PCB28和PCB52在所有样品中均被检出．与国内外污染区相比，PCBs含量较低．研究区土壤中污染物的组成结果类似，PCBs以3—5氯取代的同属物为主，农药以DDTs为主．剖面土壤中∑PCBs含量范围为8．9—55．9ng／g，主要以3—5氯取代的PCBs为主，平均占PCBs总量的89％．∑DDTs含量为4．7—42．6ng／g，以p，p'-DDE，p，p'-DDT为主．DDT／（DDD＋DDE）的比率表明红枫湖地区水稻田中DDTs的降解速率不同，暗示其环境条件的差异．α-HCH／γ-HCH为0．28-0．90，表明红枫湖地区水稻田中HCHs在环境中残留时间很长，经历了光解和生物作用等变化．PCBs对TEQ的贡献较低，为0．06—0．51pg／g． |
|
其他语种文摘
|
Distributions of seven PCBs （polyehlorinated biphenyls） congeners and 13 OCPs （organochlorinated pesticides） were investigated in paddy soil section in Hongfeng reservoir area. The results showed that DDTs and its metabolized compounds, isomer of HCHs, Endrin, heptachlor, PCB 28 and PCB 52 were detected in all soil samples. Compared to the polluted area, the concentrations of PCBs were lower in study area, while the compositions of organic pollutants in soil samples were similar. The dominant compositions of PCBs and OCPs were tri-, tetra-,and penta-chlorinated PCB congeners and DDTs respectively. The proportion of tri-,tetra-and penta-CB was 89 percent. The contents of ∑DDTs were between 4.7 ng/g and 42.6 ng/g and p, p＇-DDE, p, p＇-DDT were the major isomers. The ratios of DDT/（DDD ＋ DDE） showed that the rate of DDTs degradation and environment status were different. The range of α-HCH/γ-HCH was 0. 28 -0. 90, indicating that HCHs had stayed for long time in environment, By photolysis and microbial, the proportion of the HCHs isomers had changed in Hongfeng reservoir area. ∑TEQ of PCB118 and PCB180 were 0.06 -0. 51 pg/g. |
|
来源
|
环境科学
,2007,28(2):255-260 【核心库】
|
|
关键词
|
PCBs
;
OCPs
;
水稻田
;
TEQ
|
|
地址
|
中国科学院地球化学研究所, 环境地球化学国家重点实验室, 贵阳, 550002
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
0250-3301 |
|
学科
|
环境污染及其防治 |
|
基金
|
中国科学院重点项目
;
国家自然科学基金项目
;
贵州省项目
|
|
文献收藏号
|
CSCD:2730832
|
参考文献 共
42
共3页
|
|
1.
Wania F. Tracking the distribution of persistent organic pollutants-control strategies for these contaminants will require a better understanding of how they move around the globe.
Environ Sci Technol,1996,30:390A-396A
|
CSCD被引
119
次
|
|
|
|
|
2.
Gouin T. Evidence for the'grasshopper'effect and fractionation during long-range atmospheric transport of organic contaminants.
Environ Pollut,2004,128:139-148
|
CSCD被引
33
次
|
|
|
|
|
3.
Meijer S N. Spatial and temporal trends of POPs in Norwegian and UK background air:implications for global cycling.
Environ Sci Technol,2003,37:454-461
|
CSCD被引
8
次
|
|
|
|
|
4.
Ockenden W A. The global recycling of persistent organic pollutants is strongly retarded by soils.
Environ Pollut,2003,121:75-80
|
CSCD被引
47
次
|
|
|
|
|
5.
Fu J M. Persistent organic pollutants in environment of the Pearl River Delta China:An overview.
Chemosphere,2003,52:1411-1422
|
CSCD被引
95
次
|
|
|
|
|
6.
赵玲. 有机氯农药在农业环境中残留现状分析.
农业环境与发展,2001,18(1):37-39
|
CSCD被引
20
次
|
|
|
|
|
7.
龚钟明. 天津市郊污灌区农田土壤中的有机氯农药残留.
农业环境保护,2002,21(5):459-461
|
CSCD被引
26
次
|
|
|
|
|
8.
曹红英. 北京地区50多年来有机氯农药迁移与残留的动态模拟与预测.
中国科学(D辑地球科学),2005,35(10):980-988
|
CSCD被引
6
次
|
|
|
|
|
9.
安琼. 长江三角洲典型地区农田土壤中多氯联苯残留状况.
环境科学,2006,27(3):528-532
|
CSCD被引
26
次
|
|
|
|
|
10.
Meijer S N. Global distribution and budget of PCBs and HCB in background surface soils:implications for sources and environmental processes.
Environ Sci Technol,2003,37:667-672
|
CSCD被引
49
次
|
|
|
|
|
11.
Meijer S N. Air-soil exchange of organochlorine pesticides in agricultural soils.1.Field measurements using a novel in situ sampling device.
Environ Sci Technol,2003,37:1292-1299
|
CSCD被引
16
次
|
|
|
|
|
12.
Meijer S N. Air-soil exchange of organochlorine pesticides in agricultural soils.2.Laboratory measurements of the soil/air partition coefficient (Ksa).
Environ Sci Technol,2003,37:1300-1305
|
CSCD被引
8
次
|
|
|
|
|
13.
Gevao B. Bound pesticide residues in soils:a review.
Environ Pollut,2000,108:3-14
|
CSCD被引
72
次
|
|
|
|
|
14.
Meijer S N. Influence of environmental variables on the spatial distribution of PCBs in Norwegian and UK soils:Implications for global cycling.
Environ Sci Technol,2002,36:2146-2153
|
CSCD被引
14
次
|
|
|
|
|
15.
Yang N Q. PCBs and organochlorine pesticides(OCPs)in edible fish and shellfish from China.
Chemosphere,2006,63:1342-1352
|
CSCD被引
17
次
|
|
|
|
|
16.
Zhang Q H. Polychlorinated dibenzo-p-dioxins/furans and polychlorinated biphenyls in sediments and aquatic organisms from the Taihu Lake China.
Chemosphere,2005,61:314-322
|
CSCD被引
17
次
|
|
|
|
|
17.
Fung C N. Risks posed by trace organic contaminants in coastal sediments in the Pearl River Delta China.
Marine Pollution Bulletin,2005,50:1036-1049
|
CSCD被引
15
次
|
|
|
|
|
18.
Xing Y. A spatial temporal assessment of pollution from PCBs in China.
Chemosphere,2005,60:731-739
|
CSCD被引
67
次
|
|
|
|
|
19.
Zhang Z L. Occurrence of PAHs PCBs and organochlorine pesticides in the Tonghui River of Beijing China.
Environmental Pollution,2004,130:249-261
|
CSCD被引
76
次
|
|
|
|
|
20.
Zhang Z L. Fate and assessment of persistent organic pollutants in water and sediment from Minjiang River Estuary Southeast China.
Chemosphere,2003,52:1423-1430
|
CSCD被引
78
次
|
|
|
|
|
了解气象卫星更多信息，请访问