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...
Published in: | Ice and Snow |
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Main Authors: | , , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | Russian |
Published: |
IGRAS
2019
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Subjects: | |
Online Access: | https://ice-snow.igras.ru/jour/article/view/576 https://doi.org/10.15356/2076-6734-2019-3-386 |
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. |
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