城市人工湖营养盐与抗生素的时空分布特征及生态风险评价

池善庆; 林财强; 吴礼贵; 邹小明; 黄翔峰; 张海平; 谢蓉蓉; 李家兵; 吴乔枫; 刘佳

doi:10.13205/j.hjgc.202401005

城市人工湖营养盐与抗生素的时空分布特征及生态风险评价

doi: 10.13205/j.hjgc.202401005

池善庆¹,
林财强^1,2,
吴礼贵^2,3,
邹小明³,
黄翔峰²,
张海平²,
谢蓉蓉⁴,
李家兵⁴,
吴乔枫^1,2,
刘佳^2, ,

1. 福州市城乡建总集团有限公司, 福州 350001;
2. 同济大学环境科学与工程学院, 上海 200092;
3. 井冈山大学生命科学学院, 江西吉安 343009;
4. 福建师范大学环境科学与工程学院, 福州 350007

基金项目:

横向项目(晋安湖水环境与水生态维护关键技术研究)

详细信息

作者简介:
池善庆(1974-),男,高级工程师,主要研究方向为工程建设管理。873881806@qq.com

通讯作者:
刘佳(1982-),女,教授级高级工程师,主要研究方向为湖泊生态修复及污染场地修复。liujia@tongji.edu.cn

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出版历程
- 收稿日期: 2023-09-27
- 网络出版日期: 2024-04-29

TEMPORAL AND SPATIAL DISTRIBUTION CHARACTERISTICS AND ECOLOGICAL RISK ASSESSMENT OF NUTRIENTS AND ANTIBIOTICS IN URBAN ARTIFICIAL LAKES

1. Fuzhou Urban and Rural Construction Group Co., Ltd., Fuzhou 350001, China;
2. College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
3. School of Life Science, Jinggangshan University, Ji'an 343009, China;
4. College of Environmental Science and Engineering, Fujian Normal University, Fuzhou 350007, China

摘要

摘要: 对福州市晋安湖不同点位的上覆水及沉积物中营养盐和抗生素开展了一年监测,重点解析了传统污染物与新污染物引起的时空分布差异,对其引起的生态风险进行了评价。研究结果显示,湖体上覆水总氮浓度全年维持在较高水平(1.88~4.96 mg/L),而总磷在夏季表现出较高的浓度水平(0.15~0.55 mg/L),湖体在夏季呈现中度富营养状态(TLI值介于59.92~66.34)。湖体沉积物总氮含量为30.0~1780.0 mg/kg,总磷含量为81.4~2585.0 mg/kg,显示为中度或重度的富营养化污染。上覆水、沉积物中检测到5种抗生素(磺胺甲噁唑、四环素、磺胺多辛、磺胺林、土霉素)的浓度范围分别为0.49~13.03 ng/L、0.23~4.80 ng/g,抗生素的浓度及生态风险在冬季高于其他季节。针对城市人工湖可能同时存在的富营养化风险和生态风险,需要考虑常规污染物与新污染物的时间、空间分布特征,选择更为有效的技术对关键点位存在的复合污染进行针对性治理。
- 人工湖 /
- 上覆水 /
- 沉积物 /
- 营养盐 /
- 抗生素 /
- 生态风险评价
Abstract: This study implemented a comprehensive one-year monitoring program to assess the levels of nutrients and antibiotics in both surface water and sediments across diverse locations within Jin'an Lake in Fuzhou. The investigation was primarily directed towards scrutinizing the nuanced spatiotemporal variations induced by conventional pollutants and emerging contaminants, coupled with evaluating the associated ecological risks. The findings unveiled that the total nitrogen concentration in the lake's surface water consistently maintained an elevated status throughout the year(1.88 to 4.96 mg/L), while total phosphorus exhibited heightened concentration during the summer(0.15 to 0.55 mg/L), indicating a state of moderate eutrophication(with a trophic level index ranging from 59.92 to 66.34) during this season. The sediment analysis indicated a total nitrogen content ranging from 30.0 to 1780.0 mg/kg and a total phosphorus content ranging from 81.4 to 2585.0 mg/kg, signifying a condition of moderate to severe eutrophication pollution level. Notably, five antibiotics(sulfamethoxazole, tetracycline, sulfadimoxine, sulfamethoxymethane, and tylosin) were discerned in both surface water and sediments, exhibiting concentrations spanning from 0.49 to 13.03 ng/L and 0.23 to 4.80 ng/g, respectively. The concentrations of antibiotics and associated ecological risks manifested a seasonal disparity, with higher levels observed in winter than in other seasons. Considering the potential co-occurrence of eutrophication and ecological risk within urban artificial lakes, prudent consideration of the spatiotemporal distribution characteristics of conventional pollutants and emerging contaminants is imperative. Moreover, the judicious selection of more productive technologies for the targeted remediation of composite pollution at critical sites emerges as a critical imperative.
- artificial lake /
- overlying water /
- sediments /
- nutrients /
- antibiotics /
- ecological risk assessment

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