Journal
CHEMISTRY AND ECOLOGY
Volume 33, Issue 10, Pages 977-990Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02757540.2017.1393533
Keywords
Polycyclic aromatic hydrocarbons; Lake Baikal; water; air; sources; contributions; spatial distribution
Funding
- Russian Academy of Sciences [0345-2016-0008]
- Russian Foundation for Basic Research [17-45-388054, 17-29-05068]
- Government of Irkutsk Region
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The composition of polycyclic aromatic hydrocarbons (PAHs) in Lake Baikal water and adjacent air layer and PAH emission composition profiles of possible sources were investigated. Analysis of emission composition data showed that the source profiles could not be grouped by fuel type or pyrogenic/petrogenic origin. Because of the similarity of source PAH profiles, the drawing of 3D mixing diagrams was the only way to check whether some of the potential PAH sources were the true sources. The mixing diagrams showed that the sources of air pollution were paper mills and wood burning and that the sources of water pollution were coal-fired and oil-fired boilers. The common source for both air and water was only oil and petroleum products. To determine the locations of PAH sources, their contributions to air and water pollution were calculated and mapped. Based on the results, air and water were polluted from both local and regional sources. The location of the zone influenced by a particular source was conditioned by physical properties of source emission, direction of air/water flows that transfer PAHs and temperature differences between mixing air/water flows.
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