Soil-Based Treatments of Mechanically Collected Cyanobacterial Blooms from Lake Taihu: Efficiencies and Potential Risks
文献类型：期刊论文
| 作者 | Chen, Wei1; Jia, Yunlu1,2; Li, Enhua3; Zhao, Shuang1,2; Zhou, Qichao1,2; Liu, Liming1; Song, Lirong1 |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2012-12-18 |
| 卷号 | 46期号:24页码:13370-13376 |
| 关键词 | RAPE BRASSICA-NAPUS RICE ORYZA-SATIVA MICROCYSTIN-LR WATER-TREATMENT MC-LR DEGRADATION TOXINS IRRIGATION EXPOSURE GROWTH |
| ISSN号 | 0013-936X |
| 通讯作者 | Chen, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China. |
| 中文摘要 | In China, mechanical collection of cyanoblooms followed by soil-based treatments has been widely used as emergency strategies in many eutrophicated freshwaters. This study was to evaluate both efficiencies and potential risks of typical soil-based technologies. Results from this study indicated that over 90% of cyanobacterial biomass and 96% of dissolved microcystins (MCs) could be restrained in soils via three-level systems, which were much better than single-level systems. High concentrations of MCs, ranged from 65 to 276 ng g(-1) and from 2.12 to 6.6 ng g(-1), were found in soils around treatment systems and croplands, respectively. In the soil solutions, MCs ranged from 0.35 to 2.0 mu g L-1, showing a potentially high leaching risk. In the samples from shallow groundwater near the treatment systems, MC concentrations were detected as high as 1.2 mu g L-1. Moreover, bioaccumulations of MCs varied between 22 and 365 mu g kg(-1), and 19-222 mu g kg(-1) were found in 13 kinds of crops and 7 kinds of wild grass, respectively. Our results indicated for the first time that current soil-based technologies were effective but could pose potential environmental, ecological, and public health risks. Further improvements of these technologies were also proposed based on our findings. |
| 英文摘要 | In China, mechanical collection of cyanoblooms followed by soil-based treatments has been widely used as emergency strategies in many eutrophicated freshwaters. This study was to evaluate both efficiencies and potential risks of typical soil-based technologies. Results from this study indicated that over 90% of cyanobacterial biomass and 96% of dissolved microcystins (MCs) could be restrained in soils via three-level systems, which were much better than single-level systems. High concentrations of MCs, ranged from 65 to 276 ng g(-1) and from 2.12 to 6.6 ng g(-1), were found in soils around treatment systems and croplands, respectively. In the soil solutions, MCs ranged from 0.35 to 2.0 mu g L-1, showing a potentially high leaching risk. In the samples from shallow groundwater near the treatment systems, MC concentrations were detected as high as 1.2 mu g L-1. Moreover, bioaccumulations of MCs varied between 22 and 365 mu g kg(-1), and 19-222 mu g kg(-1) were found in 13 kinds of crops and 7 kinds of wild grass, respectively. Our results indicated for the first time that current soil-based technologies were effective but could pose potential environmental, ecological, and public health risks. Further improvements of these technologies were also proposed based on our findings. |
| WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Engineering, Environmental ; Environmental Sciences |
| 研究领域[WOS] | Engineering ; Environmental Sciences & Ecology |
| 关键词[WOS] | RAPE BRASSICA-NAPUS ; RICE ORYZA-SATIVA ; MICROCYSTIN-LR ; WATER-TREATMENT ; MC-LR ; DEGRADATION ; TOXINS ; IRRIGATION ; EXPOSURE ; GROWTH |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [40971249]; National Basic Research Program of China (973 Program) [2008CB418006]; National High Technology Research and Development Program of China [2009AA063005] |
| 语种 | 英语 |
| WOS记录号 | WOS:000312432200043 |
| 公开日期 | 2013-10-31 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/19358]  |
| 专题 | 水生生物研究所_藻类生物学及应用研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan 430077, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Wei,Jia, Yunlu,Li, Enhua,et al. Soil-Based Treatments of Mechanically Collected Cyanobacterial Blooms from Lake Taihu: Efficiencies and Potential Risks[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2012,46(24):13370-13376. |
| APA | Chen, Wei.,Jia, Yunlu.,Li, Enhua.,Zhao, Shuang.,Zhou, Qichao.,...&Song, Lirong.(2012).Soil-Based Treatments of Mechanically Collected Cyanobacterial Blooms from Lake Taihu: Efficiencies and Potential Risks.ENVIRONMENTAL SCIENCE & TECHNOLOGY,46(24),13370-13376. |
| MLA | Chen, Wei,et al."Soil-Based Treatments of Mechanically Collected Cyanobacterial Blooms from Lake Taihu: Efficiencies and Potential Risks".ENVIRONMENTAL SCIENCE & TECHNOLOGY 46.24(2012):13370-13376. |
入库方式： OAI收割
来源：水生生物研究所
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