Distribution characteristics of PAHs and solid particles over the water area of lake Baikal during wildfires in summer 2018

摘要

We present the results of the content of 18 PAHs in the atmosphere over Lake Baikal obtained in the course of the shipboard expedition during wildfires in the Krasnoyarsk Territory and Yakutia in July 2018. We have obtained the data on the spatial distribution of the PAHs content and the mass concentration of aerosol particles in the near-water air layer throughout the entire lake area. We have also calculated PAH inflows to the water surface of the lake. Using backward trajectory modelling and satellite photographs, we have traced the movements of plumes from the seats of wildfires towards Lake Baikal.