00482naa#a2200157#i#450# EN\\bibl\46911 20240508054352.3 1681-1208 20100325b2010####ek#y0engy0150####ca RU Tropospheric NO2 trend over St. Petersburg Russia as measured from space Journal article Moscow Geophysical Center of the Russian Academy of Sciences 2010 6 с. Journal article local Ionov D V rjes.ru