Inżynieria Ekologiczna (Dec 2018)
Preliminary evaluation of nutrients concentration in quarry lakes located on the rural areas
Abstract
The paper presents the results of the research of nutrients concentration (total nitrogen - TN, NH4, NO3, NO2, total phosphorus - TP, PO4) in the waters of inactive quarries. The aim of research was to assess the condition of quarry lakes. Average concentration of TN was within 1.10-3.50 mgNdm-3and TP in the range of 0.39-1.08 mgP/dm3. No risk of reservoir enrichment by nitrates from agricultural sources was found, the maximum NO3 concentration was 1.06 mgNO3/dm/-3. High concentration of TP (>0,1 mgP/dm3) causes eutrophication, occurring in all reservoirs, manifested by algal blooms and affects poor water status assessment. The worst water quality was found in the quarry lakes KG-3 and KG-2 exposed to the sewage from farms. The examined indicators of water pollution in quarry lakes KG-1, KŁ-4, KM-5 fulfill the requirements of category A1 and potentially may be a source of water for consumption (after water treatment)
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