物种敏感性分布在铊污染淡水生物生态风险评估中的应用
Assessing ecological risk of sudden thallium pol-lution accident to freshwater organisms by species sensitivity distributions
查看参考文献34篇
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文摘
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应用物种敏感性分布(SSD)方法构建了铊对淡水生物的SSD曲线。在此基础上,计算了铊对不同生物的5%危害质量浓度(HC_5),分析比较铊对于不同生物类别的毒性敏感性差异及其特征,并针对不同污染物质量浓度,评价了北江铊污染突发事件对不同生物类别的生态风险。结果表明,不同物种对铊污染物的耐受范围存在差异,从小到大依次为藻类、脊椎动物、无脊椎动物。这可能与各物种的组别多样性有关,耐受范围越大,表示随着质量浓度增加,风险增大的趋势越缓慢。铊对不同物种的HC_5从小到大依次为藻类、无脊椎动物、脊椎动物。HC_5越小,铊对该物种的生态风险越大,其中藻类对铊最敏感,其HC_5为113 μ/L。从总体上看,铊对淡水生物系统的HC_5为210μg/L。不同质量浓度值得出的潜在影响比例(PAF)的大小,反映对不同类别生物的损害程度。在100 μg/L以下,全部物种的PAF值几乎为0;在质量浓度达100 μg/L时,藻类和无脊椎动物开始受到影响;在质量浓度达1 000 μg/L时,超过99%的藻类和无脊椎动物受到影响,全部物种有96%受到影响。对2010年北江某突发性铊污染事件中高质量浓度集中区进行生态风险评估,表明该污染河段的生态风险极低,PAF接近于0。 |
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其他语种文摘
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Species sensitivity distributions (SSD) method was used to assess the ecological risk of T1 (Thallium) to freshwater organisms. The hazardous concentrations for 5% of the species (HC_5) were cal-culated, and the difference and character of hazardous concentrations of T1 to different species was analyzed. The acute ecological risks of T1 and the sensitivity of different freshwater species were assessed during sudden T1 pollution accident in the Beijiang River in 2010. The results showed that different organisms have different tolerance range of T1 which can be arranged in the order of algae < vertebrates <invertebrates. It may be associated with the species biodiversity. The wider tolerance range of T1 indicated that the increasing trend of ecological risk would slow down when the concentration of T1 in-creased. The HC_5 to all species from low to high was in the order of algae < invertebrates < vertebrates. The lower HC_5 is, the higher ecological risk of T1 to species is. Algae was the most sensitive specie among the selected freshwater species with the HC_5 of 113 μg/L. Meanwhile, the HC_5 to all of the freshwater species rose up to 210 μg/L. The potential affected fraction (PAF) reflected the damage de-gree. When the concentration of T1 was less than 100 μg/L, the val-ue of PAF was close to zero. When the value increased to 100 μg/L, algae and invertebrates began to be affected. When it went up to1 000 μg/L, 28% of crustaceans and 15% of all freshwater species was impacted, respectively. Using the peak concentration of T1 in high-concentration zone, the acute ecological risk of sudden T1 pollu-tion accident in the Beijiang River was found to be very low (PAF was close to 0). |
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来源
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安全与环境学报
,2012,12(6):134-139 【核心库】
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关键词
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环境学
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铊污染
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淡水生物
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生态风险
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物种敏感性分布
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广东北江
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地址
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1.
中国科学院广州地球化学研究所, 广州, 510640
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中国广州分析测试中心广东省分析测试技术公共实验室, 广州, 510070
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环境保护部华南环境科学研究所, 广州, 510655
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语种
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中文 |
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ISSN
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1009-6094 |
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学科
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环境科学基础理论;环境质量评价与环境监测 |
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基金
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国家重大科技专项
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文献收藏号
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CSCD:4733674
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参考文献 共
34
共2页
|
|
1.
周令治. A review of scattered metals.
有色金属:冶炼部分,1994(1):42-46
|
被引
13
次
|
|
|
|
|
2.
邹家炎. 稀散金属产业的现状与展望.
中国工程科学,2002,4(8):86-92
|
被引
6
次
|
|
|
|
|
3.
Kazantzis G. Thallium in the environment and health effects.
Environmental Geochemistry and Health,2000,22(4):275-280
|
被引
13
次
|
|
|
|
|
4.
Yang Chunxia. Distribution of natural and anthropogenic thallium in highly weathered soils in an in-dustrial pyrite slag disposing area.
The Science of Total Environment,2005,341(1/2/3):159-172
|
被引
26
次
|
|
|
|
|
5.
Xiao Tangfu. Environmental concerns related to high thallium levels in soils and thallium uptake by plants in southwest Guizhou, China.
The Science of the Total Environment,2004,318(1/2/3):223-244
|
被引
25
次
|
|
|
|
|
6.
Xiao Tangfu. Groundwater-related thallium transfer processes and their impact on the ecosystem: southwest Guizhou Province, China.
Applied Geochemistry,2003,18(5):675-691
|
被引
17
次
|
|
|
|
|
7.
杨春霞. 含铊黄铁矿冶炼废渣在自然淋滤过程中铊的迁移与释放.
环境科学研究,2005,18(2):99-102
|
被引
12
次
|
|
|
|
|
8.
邴永鑫. Tl(Ⅰ)与Tl(Ⅲ)在UV-H_2O_2体系中的价态转化.
安全与环境学报,2012,12(2):72-75
|
被引
2
次
|
|
|
|
|
9.
Cleven R. Potentiometric stripping analysis of thallium in natural waters.
Analytica Chimica Acta,1994,289(2):215-221
|
被引
12
次
|
|
|
|
|
10.
张红英. 铊的环境污染与迁移转化.
广东微量元素科学,2000,7(10):1-6
|
被引
5
次
|
|
|
|
|
11.
肖唐付. 铊的水地球化学及环境影响.
地球与环境,2004,32(1):28-34
|
被引
11
次
|
|
|
|
|
12.
张忠. 中国铊矿床开发过程中铊环境污染研究.
中国科学: D辑,1997,27(4):331-336
|
被引
31
次
|
|
|
|
|
13.
Twining B S. Oxidation of thallium by freshwater plankton communities.
Environmental Science & Technology,2003,37(12):2720-2726
|
被引
9
次
|
|
|
|
|
14.
Wallwork-Barber M K. Thallium movement in a simple aquatic ecosystem.
Journal of Envi-ronmental Science and Health,1985,20(6):701-720
|
被引
2
次
|
|
|
|
|
15.
US E P A.
Water related fate of the 129 priority pollutants,1979
|
被引
1
次
|
|
|
|
|
16.
The Council of the European Communities. Council directive 76/464/ EEC of 4 May 1976 on pollution caused by certain dangerous substances discharged into the aquatic environment of the Community.
Official Journal of the European Communities,1976,129:23-29
|
被引
1
次
|
|
|
|
|
17.
Thomas O. Thallium.
Ceramic Bulletin,1990,69(5):885-886
|
被引
2
次
|
|
|
|
|
18.
Frengstad B. The chemistry of Norwegian groundwaters: III. The distribution of trace elements in 476 crystalline bedrock groundwaters, as analysed by ICP-MS techniques.
The Science of the Total Environment,2000,246(1):21-40
|
被引
13
次
|
|
|
|
|
19.
.
GB 3838--2002地表水环境质量标准
|
被引
3
次
|
|
|
|
|
20.
邓红梅. 水中铊的污染及其生态效应.
环境化学,2008,27(3):363-367
|
被引
12
次
|
|
|
|
|
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