Series: NILU rapport 15/2019
The nickel smelters in NW Russia emit large quantities of sulphur dioxide (SO2) and heavy metals. These emissions lead to enhanced concentrations of environmental pollutants in the border areas. The monitoring programme shows that air quality in the border areas was in compliance with Norwegian limit values for SO2 for calendar year 2018, as well as seasonal mean winter 2017/18. Target values for Ni and As are met.