Akademik Veri Yönetim Sistemi
International Journal of Environment and Geoinformatics (IJEGEO), cilt.7, sa.1, ss.45-53, 2020 (Hakemli Dergi)
The identification of bacteriologically
characters of coastal areas is important due to the fact that bacteriological
pollution, transported to seas via rivers is a potential threat for ecosystem,
animal and human health. In this study, bacteriological load of Çırpıcı River transporting
to the Sea of Marmara from Zeytinburnu location in Istanbul and its
relationship with primary hydrographic parameters investigated. The levels of
fecal coliform (FC), total coliform (TC), fecal streptococci (FS) and total
heterotrophic aerobic bacteria (HPC) tested using Membrane Filtration Technique
in the surface water samples. Seawater temperature, pH, salinity, dissolved
oxygen were recorded in-situ using multiparameter (YSI556 MPS). While the
highest TC detected to be 13x107 CFU/100 ml, the highest FC was 14x106 CFU/100
ml. The lowest FC recorded as 25x10 CFU/100 ml. While the highest FS level was
determined to be 73x105 CFU/100 ml, the highest HPC was 14x106 CFU / ml.
Variable environmental parameters recorded for seawater temperature between
10.3-29.5˚C; pH 6.0-8.38; dissolved oxygen 0.34- 10.71 mg /l and salinity
16.50-26.57 psu during the study period. Significant correlation between the
temperature and FC, FS and THAB detected. The levels of bacteria detected at
the spot where the Çırpıcı River poured into the Sea of Marmara were found
higher than the station at the 800 m open of the Sea of Marmara. It was
determined that the Çırpıcı River carried 103 CFU bacterial loads at 100 ml for
TC to the Sea of Marmara. The FC and FS counts carried to the Marmara Sea from
Çırpıcı River recorded to be 102/100 ml and 103/100 ml, respectively. The fact
that FC and TC levels were above the limit values during the study indicate the
stability of pollution sources in the region and that the Çırpıcı Stream carries
a bacteriological risk in terms of human, animal, and environmental health.