Insoluble fractions of aerosols and heavy metals in fresh snow in the North-West of the Kola Peninsula in 2018

As a result of studies of newly fallen snow in the North of the Kola Peninsula, it was found that from January to May 2018 its density amounted, on the average, to 0.160±0.006 g/cm3 (n = 82), and pH of melted snow water - 6.87±0.14 (n = 47). Neutral and slightly alkaline reaction of snow water imped...

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Bibliographic Details
Published in:Ice and Snow
Main Authors: M. Mityaev V., M. Gerasimova V., I. Ryzhik V., T. Ishkulova G., М. Митяев В., М. Герасимова В., И. Рыжик В., Т. Ишкулова Г.
Other Authors: The work was performed in the framework of the research topic of MMBI KSC RAS 9-18-03 (State registration number АААА-А18-118030690060-6) «Vertical and lateral flows of sedimentary substances in the coastal zones of the Barents and White seas in a changing environment and climate», Работа выполнена в рамках темы НИР ММБИ КНЦ РАН 9-18-03 (номер госрегистрации АААА-А18-118030690060-6) «Вертикальные и латеральные потоки осадочного вещества в береговых зонах Баренцева и Белого морей в условиях изменяющейся природной среды и климата»
Format: Article in Journal/Newspaper
Language:Russian
Published: IGRAS 2019
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Online Access:https://ice-snow.igras.ru/jour/article/view/576
https://doi.org/10.15356/2076-6734-2019-3-386
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Summary:As a result of studies of newly fallen snow in the North of the Kola Peninsula, it was found that from January to May 2018 its density amounted, on the average, to 0.160±0.006 g/cm3 (n = 82), and pH of melted snow water - 6.87±0.14 (n = 47). Neutral and slightly alkaline reaction of snow water impedes the mobility of heavy metals in the insoluble fraction of aerosols. In loose fresh snow (density less than 0.2 g/cm3) the content of solid aerosols increases as the snow density grows. The average concentration of solid aerosol particles in freshly fallen snow is 4.04±0.24 mg/l (n = 47). Over the winter period of 2018 (120 days), about 1.85-2.37 thousand tons of aerosol substance precipitated on the underlying surface of the area under investigation. The daily deposition of aerosols averaged 1.03-1.33 mg m-2, and together with solid precipitation, mg m-2 day-1: Zn - 12.5-14.2, Cu - 2.2-2.5, Pb - 0.58-0.66, Cd - 0.31-0.42. According to the results of our researches, two impact areas were previously identified, both allocated to large regional centers. The Murmansk coast is divided into three background areas, each of which corresponds to its natural landscape complex. С января по май 2018 г. на северо-западе Кольского полуострова проведено исследование концентраций твёрдых нерастворимых частиц в свежевыпавшем снеге, а также потока твёрдых аэрозолей на поверхность земли в зимний период. Средняя концентрация твёрдых нерастворимых частиц в свежевыпавшем снеге составляет 4,04±0,24 мг/л (п = 47), что выше фоновых значений для западной Арктики. Поток твёрдых аэрозольных частиц в среднем равен 2,10±0,09 мг м2 за один снегопад.