Acute toxicity assessment of drinking water source with luminescent bacteria: Impact of environmental conditions and a case study in Luoma Lake, East China
作者机构：College of Environmental and Chemical EngineeringShanghai UniversityShanghai 200444China State Environmental Protection Key Laboratory of Monitoring and Analysis for Organic Pollutants in Surface WaterJiangsu Environmental Monitoring CenterNanjing 210036China State Key Joint Laboratory of ESPCSchool of EnvironmentTsinghua UniversityBeijing 100084China
出 版 物：《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿（英文）)
年 卷 期：2020年第14卷第6期
页 面：201-209页
核心收录：
学科分类：1004[医学-公共卫生与预防医学(可授医学、理学学位)] 100402[医学-劳动卫生与环境卫生学] 10[医学]
主 题：Bioluminescent bacteria Acute toxicity Pearson correlation analysis Drinking water source Vibrio fischeri
摘 要：Protecting the quality of lake watersheds by preventing and reducing their contamination is an effective approach to ensure the sustainability of the drinking water *** this study,acute toxicity assessment was conducted on the basis of acute bioluminescence inhibition assay using the marine bacterium Vibrio fischeri as the test organism and Luoma Lake drinking water source in East China as the research *** suitable ranges of environmental factors,including pH value,organic matter,turbidity,hardness,and dissolved oxygen of water samples were evaluated for the toxicity testing of bioluminescent *** physicochemical characteristics of water samples at the selected 43 sites of Luoma Lake watershed were *** showed that the variations in pH value(7.31-8.41),hardness(5-20°d)and dissolved oxygen(4.44-11.03 mg/L)of Luoma Lake and its main inflow and outflow rivers had negligible impacts on the acute toxicity testing of *** luminescence inhibition rates ranged from-11.21%to 10.80%at the 43 *** s correlation analysis in the experiment revealed that temperature,pH value,hardness,and turbidity had no correlation with luminescence inhibition rate,whereas dissolved oxygen showed a weak statistically positive correlation with a Pearson correlation coefficient of 0.455(p0.05).
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