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The State Of Ecology In The Territory Of The Chechen Republic

Table 3: Average annual concentrations of Terek and Sunzha water pollutants in 2019 mg/dm3

Rivers Pollutants
Nitrates pH Chlorides Sulfates Oxygen content BOС5 Permanganate acidity Dry residue
1 Terek 8.6 7.5 140.5 101.3 8.2 1.6 3.2 370
2 Sunzha 7.5 7.5 128.1 86.7 8.6 1.8 3.4 303
environmental limit concentration 45 6.5-8.5 350 500 no less4.0 mg O2/dm3 not more than4.0 mg O2/dm3 not more than 5.0 1000
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