Water and Sewage Laboratory, Water and Wastewater Treatment Plant in Zielona Góra, Zjednoczenia 110 A, 65-120 Zielona Góra, Poland.
Institute of Environmental Engineering, University of Zielona Góra, Licealna 9, 65-417 Zielona Góra, Poland.
Toxins (Basel). 2020 Apr 28;12(5):284. doi: 10.3390/toxins12050284.
Harmful cyanobacteria and their cyanotoxins may contaminate drinking water resources and their effective control remains challenging. The present study reports on cyanobacterial blooms and associated cyanotoxins in the Obrzyca River, a source of drinking water in Poland. The river was examined from July to October 2019 and concentrations of microcystins, anatoxin-a, and cylindrospermopsin were monitored. The toxicity of water samples was also tested using an ecotoxicological assay. All studied cyanotoxins were detected with microcystins revealing the highest levels. Maximal microcystin concentrations (3.97 μg/L) were determined in September at Uście point, exceeding the provisional guideline. Extracts from Uście point, where the dominant species were (August), (September), and (October), were toxic for Girard. Microcystin concentrations (MC-LR and MC-RR) were positively correlated with cyanobacteria biovolume. Analysis of the chemical indicators of water quality has shown relationships between them and microcystins as well as cyanobacteria abundance.
有害蓝藻及其产生的微囊藻毒素可能会污染饮用水资源，因此对其进行有效控制仍然具有挑战性。本研究报告了波兰饮用水源奥布热察河（Obrzyca River）的水华及相关的蓝藻毒素情况。该河于 2019 年 7 月至 10 月进行了检测，监测了微囊藻毒素、鱼腥藻毒素-a 和节球藻毒素的浓度。还使用生态毒理学测定法测试了水样的毒性。所有研究的蓝藻毒素均有检出，其中微囊藻毒素含量最高。9 月 Uście 点的微囊藻毒素浓度（3.97μg/L）最高，超过了暂定指导值。Uście 点的优势种为 （八月）、 （九月）和 （十月），其提取物对 Girard 有一定毒性。微囊藻毒素浓度（MC-LR 和 MC-RR）与蓝藻生物量呈正相关。水质化学指标分析表明，它们与微囊藻毒素以及蓝藻丰度之间存在关系。
