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Soil-Based Treatments of Mechanically Collected Cyanobacterial Blooms from Lake Taihu: Efficiencies and Potential Risks
Chen, Wei1; Jia, Yunlu1,2; Li, Enhua3; Zhao, Shuang1,2; Zhou, Qichao1,2; Liu, Liming1; Song, Lirong1; Chen, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
2012-12-18
Source PublicationENVIRONMENTAL SCIENCE & TECHNOLOGY
ISSN0013-936X
Volume46Issue:24Pages:13370-13376
AbstractIn 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.; 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.
SubtypeArticle
KeywordRape Brassica-napus Rice Oryza-sativa Microcystin-lr Water-treatment Mc-lr Degradation Toxins Irrigation Exposure Growth
Department[Chen, Wei; Jia, Yunlu; Zhao, Shuang; Zhou, Qichao; Liu, Liming; Song, Lirong] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Jia, Yunlu; Zhao, Shuang; Zhou, Qichao] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Li, Enhua] Chinese Acad Sci, Inst Geodesy & Geophys, Wuhan 430077, Peoples R China
DOI10.1021/es3027902
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
Funding OrganizationNational 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] ; 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] ; 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] ; 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]
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000312432200043
WOS KeywordRAPE BRASSICA-NAPUS ; RICE ORYZA-SATIVA ; MICROCYSTIN-LR ; WATER-TREATMENT ; MC-LR ; DEGRADATION ; TOXINS ; IRRIGATION ; EXPOSURE ; GROWTH
Funding OrganizationNational 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] ; 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] ; 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] ; 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]
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19358
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorChen, W (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
Affiliation1.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
Recommended Citation
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.,...&Chen, W .(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.
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