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郭晶, 王丑明, 黄代中, 李利强, 连花. 洞庭湖水污染特征及水质评价[J]. 环境化学, 2019, 38(1): 152-160. doi: 10.7524/j.issn.0254-6108.2018013104
引用本文: 郭晶, 王丑明, 黄代中, 李利强, 连花. 洞庭湖水污染特征及水质评价[J]. 环境化学, 2019, 38(1): 152-160. doi: 10.7524/j.issn.0254-6108.2018013104
shu
GUO Jing, WANG Chouming, HUANG Daizhong, LI Liqiang, LIAN Hua. Pollution characterization and water quality assessment of Dongting Lake[J]. Environmental Chemistry, 2019, 38(1): 152-160. doi: 10.7524/j.issn.0254-6108.2018013104
Citation: GUO Jing, WANG Chouming, HUANG Daizhong, LI Liqiang, LIAN Hua. Pollution characterization and water quality assessment of Dongting Lake[J]. Environmental Chemistry, 2019, 38(1): 152-160. doi: 10.7524/j.issn.0254-6108.2018013104
shu

洞庭湖水污染特征及水质评价

  • 1.

    湖南省洞庭湖生态环境监测中心, 岳阳, 414000

  • 基金项目:

    2015年湖南省环境保护科技计划项目（2015015）资助.

Pollution characterization and water quality assessment of Dongting Lake

  • 1.

    Ecological and Environmental Monitoring center of Dongting Lake of Hunan, Yueyang, 414000, China

  • Fund Project: Supported by Environmental Protection Science and Technology Program of Hunan Province (2015015).

  • 摘要: 于2016年4月-2017年3月对洞庭湖区11个监测断面396个表层水样进行采集，选取8个水质指标进行因子特征分析，并采用单因子评价法、综合污染指数法和主成分分析法对洞庭湖水质进行综合评价.洞庭湖水体呈弱碱性，总氮（TN）和总磷（TP）为超标污染物.单因子评价法结果表明，TN和TP为洞庭湖水质的主要限制因子，TN参与评价时，洞庭湖水质为Ⅴ类或劣Ⅴ类.综合污染指数法结果表明，洞庭湖水质状况为中污染，平水期水质优于枯水期和丰水期，主要污染因子为TN、TP、五日生化需氧量（BOD5）和高锰酸盐指数（CODMn）.主成分分析结果表明，洞庭湖水质主要受pH、溶解氧（DO）、氨氮（NH3-N）和TN等指标影响，西洞庭湖水质较好，南洞庭湖次之，东洞庭湖较差.3种方法是定性和定量评价的有机结合，评价结果不完全一致，故采用多种评价方法来开展水质评价十分重要.
    Abstract: Three hundred and ninety-six water samples were collected in the Dongting Lake from April 2016 to March 2017.Factor characteristics analysis were performed using pH, dissolved oxygen (DO), ammonia nitrogen (NH3-N), total nitrogen (TN), total phosphorus (TP), permanganate index (CODMn), chemical oxygen demand (CODCr) and five-day biochemical oxygen demand (BOD5) as the physicochemical factors. Single-factor assessment method, comprehensive pollution index method and principal component analysis method were applied to evaluate the water quality of Dongting Lake. The water body presented weak alkalinity with TN and TP as excessive pollutants. The single-factor assessment indicated that the first restrictive factors of water quality were TN and TP, while the water quality of Dongting Lake was in Class Ⅴ or lower Ⅴ. The results of comprehensive pollution index assessment showed that the water quality was in a moderate pollution condition, with better water quality in normal period than in other two periods. TN, TP, BOD5 and CODMn were the main pollution factors. The principal component analysis method showed that indexes such as pH, DO, NH3-N and TN, etc, greatly influenced the water quality of Dongting Lake. Water quality of East Dongting Lake was inferior to South Dongting Lake, and South Dongting Lake was inferior to the West Dongting Lake. The three methods were a combination of qualitative and quantitative evaluation. The results of each method were not identical with each other. So it is very important to work on water quality assessment using various methods.
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  • 收稿日期:  2018-01-31
  • 刊出日期:  2019-01-15
郭晶, 王丑明, 黄代中, 李利强, 连花. 洞庭湖水污染特征及水质评价[J]. 环境化学, 2019, 38(1): 152-160. doi: 10.7524/j.issn.0254-6108.2018013104
引用本文: 郭晶, 王丑明, 黄代中, 李利强, 连花. 洞庭湖水污染特征及水质评价[J]. 环境化学, 2019, 38(1): 152-160. doi: 10.7524/j.issn.0254-6108.2018013104
shu
GUO Jing, WANG Chouming, HUANG Daizhong, LI Liqiang, LIAN Hua. Pollution characterization and water quality assessment of Dongting Lake[J]. Environmental Chemistry, 2019, 38(1): 152-160. doi: 10.7524/j.issn.0254-6108.2018013104
Citation: GUO Jing, WANG Chouming, HUANG Daizhong, LI Liqiang, LIAN Hua. Pollution characterization and water quality assessment of Dongting Lake[J]. Environmental Chemistry, 2019, 38(1): 152-160. doi: 10.7524/j.issn.0254-6108.2018013104
shu

洞庭湖水污染特征及水质评价

  • 1. 湖南省洞庭湖生态环境监测中心, 岳阳, 414000
  • 收稿日期:  2018-01-31
基金项目:

2015年湖南省环境保护科技计划项目（2015015）资助.

摘要: 于2016年4月-2017年3月对洞庭湖区11个监测断面396个表层水样进行采集，选取8个水质指标进行因子特征分析，并采用单因子评价法、综合污染指数法和主成分分析法对洞庭湖水质进行综合评价.洞庭湖水体呈弱碱性，总氮（TN）和总磷（TP）为超标污染物.单因子评价法结果表明，TN和TP为洞庭湖水质的主要限制因子，TN参与评价时，洞庭湖水质为Ⅴ类或劣Ⅴ类.综合污染指数法结果表明，洞庭湖水质状况为中污染，平水期水质优于枯水期和丰水期，主要污染因子为TN、TP、五日生化需氧量（BOD5）和高锰酸盐指数（CODMn）.主成分分析结果表明，洞庭湖水质主要受pH、溶解氧（DO）、氨氮（NH3-N）和TN等指标影响，西洞庭湖水质较好，南洞庭湖次之，东洞庭湖较差.3种方法是定性和定量评价的有机结合，评价结果不完全一致，故采用多种评价方法来开展水质评价十分重要.

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