Microbiological characteristics and hygienic-sanitary aspect of the water from Black River in the Pelagonija region-North Macedonia

Blazevska, Tatjana and Menkinoska, Marija and Pavlova, Valentina and Stamatovska, Viktorija and Cilev, Goce and Stojanovski, Saso and Dimovska, Nina (2021) Microbiological characteristics and hygienic-sanitary aspect of the water from Black River in the Pelagonija region-North Macedonia. Bulgarian Journal of Soil Science Agrochemisty and Ecology. pp. 15-20.

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Abstract

The presence of microorganisms in the aquatic environment has a variable character and differs from one aquatic ecosystem to another. The main goal of this research was to determine the
microbiological characteristics of the water in Black River in the Pelagonija region near the city
of Bitola, North Macedonia and thus to determine the quality of water from a hygienic-sanitary
aspect. The material for work was the water from Black River. The survey was conducted in May
and November. Measuring points from which the sample was taken for analysis were: Measuring
point 1 (MM1) Black River near the village Novaci, measuring point 2 (MM2) Black River near
the village Kravari, measuring point 3 (MM3) Black River after the junction with Fifth channel
and measuring point 4 (MM4) Black River in the village of Skochivir.
Microbiological analysis included examination of the following groups of microorganisms:
determination of total number of Coliform bacteria-colimetric method according to Mostprobablenumber by Mac Conkey-Broth at 37o
C, total number of Fecal coliform bacteria-colometric
method, on liquid substrate Mac Conkey-Broth at 44o
C, determination on the number of Escherichia coli-membrane filtration method and determination of the number of Enterococcus-membrane filtration of Slantez Bartley Agar. From the obtained results it can be seen that the water in
measuring point 1 from all other measuring points from the hygienic and sanitary aspect is of the
best quality and the values for total Coliform bacteria in the water were the lowest with a value of
22000 coliform bacteria/L, Fecal coliform bacteria were 40000 faecal coliform bacteria/L in May.
In measuring point 3 was found the largest number of all types of bacteria that were the subject of
research.
By summarizing the obtained results, it can be concluded that high values of Coliform bacteria,
Fecal coliform bacteria is high due to the presence of wastewater and fecal water that flows from
the canal in Black River. Water pollution is closely related to anthropogenic impact and therefore
requires constant monitoring, monitoring of water quality changes.
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Key words: water, microbiological indicators, coliform bacteria, fecal coliform bacteria, escherichia coli, enterococcus, hygienic and sanitary aspect

Item Type:	Article
Subjects:	Scientific Fields (Frascati) > Agricultural Sciences > Veterinary science
Divisions:	Faculty of Veterinary Medicine
Depositing User:	Mr Aleksandar Lozanovski
Date Deposited:	06 May 2021 07:27
Last Modified:	06 May 2021 07:27
URI:	https://eprints.uklo.edu.mk/id/eprint/6342

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