Estimated acceptable critical load values for the ecosystem at the Russian Far East using EANET monitoring data

Abstract

Abstract Natural ecosystems have become at risk due to the accelerating industrial and technological development over the past century accompanied by increasing pollutant emissions into the atmosphere. It realized mostly by means of matter overloads into nature areas caused by deposition of pollutants, especially sulfur and nitrogen oxides, which can significantly affect to change ecosystem state and on substance migration. The Critical Loads method is used to assess the sustainability of ecosystems exposed to atmospheric deposition. The corresponding maximum intake of sulfur and nitrogen is estimated based on the scheme of the stationary mass balance of ions in soil solutions. The critical loads were calculated for estimating the risk threshold of acid deposition for the ecosystem of the Russian Far East using the results of regular monitoring at the EANET Primorskaya station.