气候变化领域集成服务门户(CCPortal): Coastal Water Quality in Lake Baikal in Bol'shie Koty Bay, Determined by the Effect of Atmospheric Precipitation and the Survival of Indicator Microorganisms

CCPortal

DOI	10.1134/S0097807824700787
	Coastal Water Quality in Lake Baikal in Bol'shie Koty Bay, Determined by the Effect of Atmospheric Precipitation and the Survival of Indicator Microorganisms
	Malnik, V. V.; Gorshkova, A. S.; Tomberg, I. V.; Netsvetaeva, O. G.; Molozhnikova, E. V.; Timoshkin, O. A.
发表日期	2024
ISSN	0097-8078
EISSN	1608-344X
起始页码	51
结束页码	3
卷号	51 期号:3
英文摘要	Sanitary-bacteriological and hydrochemical study of coastal water of Lake Baikal, including bottom and interstitial water, was carried out near Bol'shie Koty Settl. in June and September 2022. The study involved methods of classical sanitary microbiology with the use of methods of vacuum filtration and selective media for germination of sanitary indicative microorganisms. The concentrations of chemical components were determined by methods of high-performance liquid chromatography and spectrophotometry. The quality of water in recreation zones, as well as within the boundaries of populated areas used for bathing in the coastal zone of the settlement was found to meet the criteria of regulatory and technical documentation adopted in Russia in terms of indicators Escherichia coli and enterococci. The concentrations of hydrochemical components, such as phosphate phosphorus (P-PO43-); ammonium (N-NH4+), nitrate (N-NO3-) and nitrite (N-NO2-) nitrogen, also did not exceed the values of MAC established in Russia for water bodies used for fishery. The survival rate of E. coli and enterococci was studied in Baikal water and in the interstitial water, which is of importance for the choice of indicators to assess coastal water quality. In the course of the study, it was determined that E. coli and enterococci remained physiologically active longer in interstitial than in coastal water. It was found that the concentrations of fecal indicator bacteria in the coastal zone of the lake can increase depending on the amount of precipitation due to the washing-off of microorganisms from the shore. The study of the effect of nutrients in atmospheric precipitation on the coastal water showed that rains had no effect on the amount of nutrients in the examined surface and bottom water.
英文关键词	Southern Baikal; fecal indicator bacteria; E. coli; enterococci; atmospheric precipitation; survival rate of fecal indicator bacteria; hydrochemical characteristics
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:001230294000012
来源期刊	WATER RESOURCES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/303180
作者单位	Irkutsk Science Centre of the Russian Academy of Sciences; Russian Academy of Sciences; Limnological Institute SB RAS
推荐引用方式 GB/T 7714	Malnik, V. V.,Gorshkova, A. S.,Tomberg, I. V.,et al. Coastal Water Quality in Lake Baikal in Bol'shie Koty Bay, Determined by the Effect of Atmospheric Precipitation and the Survival of Indicator Microorganisms[J],2024,51(3).
APA	Malnik, V. V.,Gorshkova, A. S.,Tomberg, I. V.,Netsvetaeva, O. G.,Molozhnikova, E. V.,&Timoshkin, O. A..(2024).Coastal Water Quality in Lake Baikal in Bol'shie Koty Bay, Determined by the Effect of Atmospheric Precipitation and the Survival of Indicator Microorganisms.WATER RESOURCES,51(3).
MLA	Malnik, V. V.,et al."Coastal Water Quality in Lake Baikal in Bol'shie Koty Bay, Determined by the Effect of Atmospheric Precipitation and the Survival of Indicator Microorganisms".WATER RESOURCES 51.3(2024).