Factors Affecting Temporal and Spatial Variations of Microcystins in Gonghu Bay of Lake Taihu, with Potential Risk of Microcystin Contamination to Human Health
文献类型：期刊论文
| 作者 | Wang, Qing; Niu, Yuan; Xie, Ping; Chen, Jun; Ma, Zhimei; Tao, Min; Qi, Min; Wu, Laiyan; Guo, Longgen |
| 刊名 | THESCIENTIFICWORLDJOURNAL
 |
| 出版日期 | 2010 |
| 卷号 | 10页码:1795-1809 |
| 关键词 | microcystins Gonghu Bay seasonal variation Taihu Lake |
| ISSN号 | 1537-744X |
| 通讯作者 | Xie, P, Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan, Peoples R China |
| 中文摘要 | A field survey of the seasonal variation of microcystin (MC) concentration was performed in Gonghu Bay (a total of 15 sampling sites) of Lake Taihu from January to December 2008. Microcystis spp. biomass and intra-/extracellular MCs were significantly correlated with water temperature, suggesting the importance of temperature in cyanobacterial blooming in the lake. Higher MC concentration was found in summer and autumn, and peaks of Microcystis biomass and intra-/extracellular MC concentrations were all present in October. Spatially, risk of MCs was higher in littoral zones than in the pelagic area. There were significant correlations between N or P concentrations, and Microcystis biomass or MC content, suggesting that N and P levels affected MC production through influencing Microcystis biomass. Intra-/extracellular MCs and Microcystis biomass had negative exponential relationships with TN:TP, and the maximum values all occurred when TN:TP was <25. Multivariate analyses by PCCA indicated that intra- and extracellular MC concentrations had better correlations with biological factors (such as Microcystis biomass and chl-a) than with physicochemical factors. The maximum MC concentration reached up to 17 mu g/L MC-LReq, considerably higher than the drinking water safety standard (1 mu g/L) recommended by the WHO. So it is necessary to take measures to reduce the exposure risk of cyanobacterial toxins to human beings. |
| 英文摘要 | A field survey of the seasonal variation of microcystin (MC) concentration was performed in Gonghu Bay (a total of 15 sampling sites) of Lake Taihu from January to December 2008. Microcystis spp. biomass and intra-/extracellular MCs were significantly correlated with water temperature, suggesting the importance of temperature in cyanobacterial blooming in the lake. Higher MC concentration was found in summer and autumn, and peaks of Microcystis biomass and intra-/extracellular MC concentrations were all present in October. Spatially, risk of MCs was higher in littoral zones than in the pelagic area. There were significant correlations between N or P concentrations, and Microcystis biomass or MC content, suggesting that N and P levels affected MC production through influencing Microcystis biomass. Intra-/extracellular MCs and Microcystis biomass had negative exponential relationships with TN:TP, and the maximum values all occurred when TN:TP was <25. Multivariate analyses by PCCA indicated that intra- and extracellular MC concentrations had better correlations with biological factors (such as Microcystis biomass and chl-a) than with physicochemical factors. The maximum MC concentration reached up to 17 mu g/L MC-LReq, considerably higher than the drinking water safety standard (1 mu g/L) recommended by the WHO. So it is necessary to take measures to reduce the exposure risk of cyanobacterial toxins to human beings. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Environmental Sciences; Multidisciplinary Sciences |
| 类目[WOS] | Environmental Sciences ; Multidisciplinary Sciences |
| 研究领域[WOS] | Environmental Sciences & Ecology ; Science & Technology - Other Topics |
| 关键词[WOS] | TN-TP RATIO ; ENVIRONMENTAL-FACTORS ; SEASONAL DYNAMICS ; PLANKTOTHRIX SPP. ; CHINESE LAKE ; MEILIANG BAY ; GROWTH-RATE ; WATER ; CYANOBACTERIA ; AERUGINOSA |
| 收录类别 | SCI |
| 资助信息 | Ministry of Science and Technology of the People's Republic of China [2007BAC26B02]; Chinese Academy of Sciences [KZCX1-YW-14-6-1] |
| 语种 | 英语 |
| WOS记录号 | WOS:000282000500001 |
| 公开日期 | 2010-12-23 |
| 源URL | [http://ir.ihb.ac.cn/handle/342005/13514]  |
| 专题 | 水生生物研究所_淡水生态学研究中心_期刊论文 |
| 作者单位 | Chinese Acad Sci, Donghu Expt Stn Lake Ecosyst, State Key Lab Freshwater Ecol & Biotechnol China, Inst Hydrobiol, Wuhan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Qing,Niu, Yuan,Xie, Ping,et al. Factors Affecting Temporal and Spatial Variations of Microcystins in Gonghu Bay of Lake Taihu, with Potential Risk of Microcystin Contamination to Human Health[J]. THESCIENTIFICWORLDJOURNAL,2010,10:1795-1809. |
| APA | Wang, Qing.,Niu, Yuan.,Xie, Ping.,Chen, Jun.,Ma, Zhimei.,...&Guo, Longgen.(2010).Factors Affecting Temporal and Spatial Variations of Microcystins in Gonghu Bay of Lake Taihu, with Potential Risk of Microcystin Contamination to Human Health.THESCIENTIFICWORLDJOURNAL,10,1795-1809. |
| MLA | Wang, Qing,et al."Factors Affecting Temporal and Spatial Variations of Microcystins in Gonghu Bay of Lake Taihu, with Potential Risk of Microcystin Contamination to Human Health".THESCIENTIFICWORLDJOURNAL 10(2010):1795-1809. |
入库方式： OAI收割
来源：水生生物研究所
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