VARIABILITY OF PARTICULATE MATTER IN SAINT-PETERSBURG MEGACITY AIR WITHIN CLIMATIC TIME SCALE.

We compiled data base containing the particulate matter (PM) measurements for St.- Petersburg megacity air within last 40 years (1973 - 2013). Its design allows replenishing with new data for subsequent years. This data base can be used in decision support systems, modeling and validation. In paper we described used methods and means of PM measurements, spatial and temporal statistical characteristics of PM. For the first time, we made the statistical processing of PM data from the dynamical systems theory positions. For the first time, we assessed the contents of black carbon in the air of St. Petersburg area on the base of PM data. We compared our assessments with the similar results of studies in the world and found considerable overlap. Platform https://www.researchgate.net/profile/Valery_Abramov2/?ev=hdr_xprf gave excellent opportunities to preliminary discussion and data exchange in the frame of this research. The Ministry of education and science of Russia provides financial support for this research with the state order 2014/166. [ABSTRACT FROM AUTHOR]