In Novosibirsk they called the areas with the most polluted air in Zaltsovsky district, the average annual level of air pollution exceeded the norm by 2.6 times, in Pervomaisky - by 2.4 times. These data were provided by the Regional Office for Natural Resources. Particularly high indicators were recorded for formaldehyde: in the central area its concentration increased 7.4 times the permitted level, in Dzerzhinsky 5.7 times. The average in the city is 4.6 times. Also, the content of suspended particles exceeded the norm by 1.8 times. During certain periods, increased concentrations of nitrogen dioxide, phenol and ammonia were observed. Cars were identified as the main source of pollution, accounting for about 56% of emissions. Another 24% is provided by energy plants. Over five years, the total volume of emissions in the Novosibirsk region increased by almost 70%.