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Industrial and wildfire aerosol pollution over world heritage Lake Baikal

Journal of Environmental Sciences 2021年第9期33卷 49-64页

作者： Olga Popovicheva Elena Molozhnikova Sergey Nasonov Vladimir Potemkin Ivan Penner marina klemasheva Irina marinaite Ludmila Golobokova Stergios Vratolis Konstantinos Eleftheriadis Tamara Khodzher Institute of Nuclear Physics Lomonosov Moscow State UniversityLeninskie Gory1119991 MoscowRussia Limnological Institute Siberian Branch of the Russian Academy of SciencesUlan-Batorskaya Str.3Irkutsk 664033Russia Zuev Institute of Atmospheric Optics Siberian Branch of the Russian Academy of SciencesAcademician Zuev square1Tomsk 634055Russia Institute of Nuclear&Radiological Sciences&Technology Energy&SafetyN.C.S.R.“Demokritos”Athens 15310Greece

Lake Baikal is the biggest reservoir of fresh water with unique flora and fauna;presently it is negatively affected by climate change, water warming, industrial emissions, shipping,touristic activities, and Siberian forest *** assessment of air pollution-related Baikal’s ecosystem damage is an unsolved ***, based expedition exploring the Baikal atmospheric aerosol loading, was performed over the lake area in July *** combine the aerosol near-water and vertical distributions over the Lake Baikal basin with meteorological observations and air mass transportation *** sounding of aerosol fields in the troposphere assesses the atmospheric background in the pristine areas and the pollution during fire-affected *** optical properties(scattering and spectral absorption) converted to the particle number size, black carbon(BC) mass, and Absorption Angstrom Exponent(AAE) provide the inside into aerosol *** of industrial emissions from Krasnoyarsk and Irkutsk regions, and wildfire plumes from Republic of Yakutia relates the pollution sources to the increased concentrations of fine particle numbers, PM_(10) and BC mass over Southern and Northern/Central Baikal, *** highest PM10 and BC are associated to the harbor and touristic areas of intensive shipping and residential biomass *** estimates applied to aerosol data exhibit the pollution fluxes to water surface over the whole Baikal *** marks the impact of coal combustion, residential biomass burning, and wildfires indicating the high pollution level of the Lake Baikal ecological system.

关键词： Environmental impacts Aerosol pollution Ecosystem Industrial emissions Wildfires Coal combustion Shipping

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