This led the Blacksmith Institute to declare Dalnegorsk and neighboring Rudnaya Pristan as one of the ten worst polluted places on earth.
Dalnegorsk, located in the Russian Far East, is a monotown with a population of 40,000 people.
The Sikhote-Alin Nature Reserve is located in a watershed on the eastern slopes of Central Sikhote-Alin in the Terneysky and Krasnoarmeysky Districts and the area of Dalnegorsk City Council.