In Russia warm winter allowed five cities to leave the list of the dirtiest

Warm winter and reducing the load of heating systems in Angarsk, Barnaul, Iskitim, Krasnoyarsk and Petrovsk-Baikal resulted in a reduction of emissions of harmful substances into the air and the exit of these cities from the list of cities with the dirtiest air in Russia, according to a review of the status and pollution of environment in Russia in 2019, published by Roshydromet.

A priority list of cities with the highest pollution level in 2019 includes 18 cities with total number of inhabitants in them 3.3 million people. This list includes cities with a very high level of air pollution, as well as frequent one-time excess concentration of harmful substances.

As explained in the document, the 2019 winter was abnormally warm, which allowed to partially reduce the load on the heating system of cities. Four cities left list, located on the territory of the Siberian Federal district: Angarsk (Irkutsk region), Barnaul (Altai Krai), Iskitim (Novosibirsk region) and Krasnoyarsk (Krasnoyarsk Krai), and one in the far Eastern Federal district ─ Petrovsk-Zabaikalsky (Zabaykalsky Krai).

"In Krasnoyarsk in comparison with the previous year revealed a significant decline in concentrations of some pollutants — suspended solids (12%), nitric oxide (36%), phenol (30%), hydrogen fluoride (50%), formaldehyde (13%) and benzopyrene (40%) and a decrease in the number of cases of high pollution by benzpyrene from 24 to 15. One of the reasons for this fact are the meteorological conditions of the year, which enabled the purification of atmospheric air, especially in the cold season (January-March, October-December)", - stated in the review.

The authors of the review specify that in condition of the air in Krasnoyarsk was influenced by the comprehensive measures to improve the environmental situation in the period of preparation and holding of the Krasnoyarsk winter Universiade-2019, including the replacement of coal for heating in the private sector on alternative fuels, has also helped to reduce the level of atmospheric pollution.

According to the Roshydromet, in the list of most polluted cities includes 18 cities: Abakan, Bratsk, Zima, Irkutsk, Kyzyl, Lesosibirsk, Minusinsk, Yekaterinburg, Norilsk, Novokuznetsk, Kostroma, Vologda, Ulan-Ude, Usolye-Sibirskoye, Cheremkhovo, Moscow, Chita, Ufa, Yuzhno-Sakhalinsk.

"The Priority list again included Yuzhno-Sakhalinsk (Sakhalin oblast), which in 2015 due to a significant reduction in concentrations of suspended solids, benzpyrene, soot, and formaldehyde were excluded from it. In 2019 marked increase in concentrations of suspended solids, copper, and especially a sharp increase in the concentrations of formaldehyde", - the document says.

According to Roshydromet, the rest of the city, components of the priority list in 2018, preserved in it, and in 2019, including Norilsk, where the largest in Russia, the emissions of sulfur dioxide.

In Ulan-Ude, Selenginsk and Yuzhno-Sakhalinsk, the average concentration of five and in Shelekhov for the four pollutants exceeded the sanitary and hygienic standards.

Cities with high levels of air pollution also include Iskitim, Achinsk, Gusinoozersk, Kamensk-Uralsky, Kurgan, Magnitogorsk, Ekaterinburg, Novocherkassk, Rostov-on-don, Chegdomyn, Angarsk, Barnaul, Biysk, Vladivostok, Kemerovo, Komsomolsk-on-Amur, Krasnoyarsk, Novoaleksandrovsk, Astrakhan, Petrovsk-Transbaikalian, Irkutsk and Ussuriisk. On the territory of the Museum-estate "Yasnaya Polyana", where observations are carried out according to a special program, the assessment of air quality taking into account the environmental standard level of air pollution is characterized as high.