ESTIMATES OF AVERAGE CONCENTRATIONS OF POLYCYCLIC AROMATIC HYDROCARBONS IN THE ATMOSPHERE OF SEVERAL AREAS OF THE ARCTIC OCEAN

The paper presents summary data on the concentrations of polycyclic aromatic hydrocarbons (PAHs) in aerosol, which were measured during seven expeditions in the Arctic Ocean: in the Barents and Kara Seas, in the Norwegian-Greenland sector, and in the northern (>77° N) and southern parts of the Arctic seas. Higher total PAHs content was observed over the Barents Sea (0.841 ng/m3) and in the southern part of the Arctic seas (0.824 ng/m3). Regardless of the measurement area, the PAHs content decreases in the following sequence: 1) naphthalene and phenanthrene, 2) 2- and 1-methylnaphthalenes, 3) fluorene and fluoranthene. The share of these compounds is 83% of the total amount of PAHs. The relationships between the variability of concentrations of individual types of PAHs are considered.