This unusual occurrence was apparently caused by a discharge of industrial waste that occurred at one of the smelting plants owned by Norilsk Nickel, though the company management denies it, according to a statement issued by the Russian Ministry of Natural Resources and Environment.
Nevertheless, the management of the plant in question decided to temporarily decrease the facility’s output until the exact cause of this incident can be determined.
Norilsk city administration also reported that Daldykyn River is not linked to the public water supply, so the incident doesn’t pose an immediate threat to the residents’ well-being.