Abstract
This study was carried out to investigate distribution of Cr and Ni concentrations in water and sediment of Lake Uluabat, in Bursa (Turkey). The samples were collected from 10 sites and monitored monthly from August 2013 to July 2014. Data were mapped in ArcGIS 10.1 software and metals in water were assessed according to Turkish Water Pollution Control Regulations (TWPCR), while in sediment were assessed according to American National Oceanic and Atmospheric Administration’s (NOAA) criteria. As a result, Lake Uluabat was determined 4th class water, in terms of dissolved forms of Cr, while the lake was determined 3th class water quality in terms of dissolved Ni forms. Trace metals monitored were found above upper threshold value in the lake sediment. These results showed the importance and the need for hard control of pollution loads for the protection of the Lake’s sediment and water quality. It is recommended to control and monitor all pollutant sources for ecological sustainability in the lake.
Highlights
Great amount of trace metals are being discharged into the ecosystems with the rapid industrial and economic development (Liu et al 2014)
Contamination of toxic metals has attracted global notice owing to its persistence, bioaccumulation, and toxicity
The quality status of the lake was determined by overlapping water and sediment quality indices with Geographic Information Systems (GIS)
Summary
Great amount of trace metals are being discharged into the ecosystems with the rapid industrial and economic development (Liu et al 2014). Trace metal contamination has become a topic of many studies in recent literatures because of the rapid development of industrialization and urbanization (Liu et al 2018, Gür and Özan 2017, Liu et al 2014, Yang et al 2014, Gao and Li 2012, Varol and Şen 2012, Katip et al 2012). These toxic metals be formed in water systems in soluble, in suspension, in colloidal and in bottom sediments. Lake Uluabat is under natural and anthropogenic pressure due to its position (Katip et al 2013)
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