Aeolian and Ice Transport of Matter (Including Pollutants) in the Arctic

Шевченко, В. П.; Виноградова, А. А.; Lisitzin, A. P.; Novigatsky, А. N.; Panchenko, Mikhail V.; Полькин, В. В.

doi:10.1007/978-3-642-12315-3_5

Cited by 7 publications

(6 citation statements)

References 32 publications

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“…The concentration of insoluble particles in the snow cover of the Ob River basin in February 2020 was relatively low at most sites (from 0.48 to 3.42 mg/L), which corresponds to the level of many background regions of the Arctic and Subarctic [17,26,44]. At only one site (No.…”

Section: Discussionmentioning

confidence: 99%

“…Snowpack is a unique natural archive of particles deposited from the atmosphere [6][7][8][9][10][11][12][13][14][15]. The snow washes out insoluble aerosol particles (lithogenic, biogenic, and anthropogenic) from the atmosphere as well as soluble compounds, including various pollutants [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

“…In boreal and subarctic regions, both dissolved and particulate fractions of snow water reflect the chemistry of the winter atmosphere, when the land is covered by snow and the water surfaces are covered by ice. During winter, the input of mineral compounds from adjacent regions is Atmosphere 2020, 11, 1184 2 of 11 minimal, and the main factor controlling the chemical composition of snow is long-range, atmospheric transfer and transportation of anthropogenic particles over hundreds and thousands of kilometers from regional towns [19,[21][22][23][24][25][26][27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

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Insoluble Particles in the Snowpack of the Ob River Basin (Western Siberia) a 2800 km Submeridional Profile

et al. 2020

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Snowpack exhibits properties that make it a unique natural archive of airborne pollution. The data on insoluble particles in the Ob River catchment (Western Siberia) snowpack are limited. Insoluble particles in the snowpack of Western Siberia were studied at 36 sites on a 2800 km submeridional profile from the city of Barnaul to Salekhard in February 2020. Snow samples were collected over the full depth of the snow core, from the surface of the snow cover to the boundary with soil, except for the lower 1–2 cm. After the filtration of melted snow through a 0.45-µm membrane, the particle composition was studied using a scanning electron microscope with an energy microprobe. In the background areas, the concentration of insoluble particles in the snow was below 2 mg/L. Significantly higher particle concentrations were encountered near cities and hydrocarbon production areas. Particulate matter in snow mainly consists of biogenic and lithogenic particles mixed with anthropogenic particles (ash and black carbon aggregates). The proportion of anthropogenic particles increases near cities and areas of active hydrocarbon production.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Insoluble Particles in the Snowpack of the Ob River Basin (Western Siberia) a 2800 km Submeridional Profile

et al. 2020

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“…Так как исследуемый регион находится на пути западного трансграничного атмосферного переноса воздушных масс, значительное количество субмикронных сфер сгорания в составе дождевых осадков может быть связано с деятельностью промышленноиндустриальных комплексов Западной Европы. Источниками эмиссий сажи могут являться как локальные источники, печные дымовые трубы жилого сектора региона, так и удаленные [6,7].…”

Section: результаты исследования и их обсуждениеunclassified

Distribution, Material and Chemical Composition of Sedimentary Matter of Rainfall on the Territory of the Kaliningrad Region Rf

Topchaya¹,

Котова²,

Стародымова³

et al. 2020

УСЕ (ACNR)

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2 Федеральный исследовательский центр комплексного изучения Арктики им. академика Н.П. Лаверова РАН, Архангельск На окружающую среду Калининградской области большое влияние оказывает трансграничный атмосферный перенос антропогенных примесей, превышающий выбросы локальных источников эмиссий в 5-7 раз. Приведены результаты исследования количественного, вещественного и химического составов нерастворимых микрочастиц дождевых осадков. В рамках работы было собрано и обработано 29 проб дождевых осадков разных сезонов 2019 г. Определена концентрация нерастворимых микрочастиц в дождевой воде. Проведен анализ вещественного состава методом сканирующей электронной микроскопии. Содержание Al, Mn, Ni, Cu, Zn, Cr, Co, As, Sr, Cd, Mo, Ba, V и Pb определяли методом атомно-абсорбционной спектрофотометрии. Методом расчета коэффициента обогащения выявлена группа тяжелых металлов (Pb, Cd, Zn, Cu и Ni) антропогенного происхождения. Проведен корреляционный анализ, позволивший выделить две группы взаимосвязанных элементов. Определена значимая корреляционная связь между концентрациями Al, Mn, Co, Zn, Sr и Ba (R = 0,87-0,98), что подтверждает их литогенное происхождение. Вторая группа взаимосвязанных элементов -Zn, Cr, Mo, As и Pb (R = 0,70-0,87), что указывает на их литогенное и антропогенное происхождение. Для выявления удаленных источников эмиссий, при помощи программы HYSPLIT рассчитаны обратные траектории переноса воздушных масс. Выявлена сезонная изменчивость в количественном распределении и вещественном составе микрочастиц дождей. Наиболее высокие значения концентрации (6,5-12,2 мг/л) и доминирование антропогенной компоненты в составе выявлены в дождях летне-осеннего периода, а наиболее низкие (1,1-3,9 мг/л), с преобладанием биогенной и минеральной компонент -для весеннего периода. Установлено, что на распределение и состав нерастворимых микрочастиц дождевых осадков Калининградской области РФ оказывают влияние как локальный, так и дальний атмосферный перенос.Ключевые слова: дождь, элементный состав, тяжелые металлы, Калининградская область РФ, трансграничный атмосферный перенос

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“…Transport of ice algae and sediments by sea ice has been shown to favor ice-associated phytoplankton blooms when the ice melts in the summer, critically impacting the food web structure (Boetius et al, 2013;Fernández-Méndez et al, 2015;Gradinger et al, 2009;Jin et al, 2007;Olsen et al, 2017). As industrialization of the Arctic continues to expand due to easier marine access, anthropogenic pollutants (e.g., mercury, lead, black carbon, oil, and microplastics) may also be transported by sea ice over long distances from where they first enter the ocean (AMAP, 2011(AMAP, , 2015Blanken et al, 2017;Obbard et al, 2014;Peeken et al, 2018;Pfirman et al, 1995Pfirman et al, , 1997Shevchenko et al, 2016;Varotsos & Krapivin, 2018;Venkatesh et al, 1990). This makes assessment of risk, attribution of responsibility for environmental and ecological consequences, and containment, recovery, and cleaning operations of contaminants very difficult if not impossible (Glickson et al, 2014;Newton et al, 2016;Peterson et al, 2003;Post et al, 2009;Sørstrøm et al, 2010;Wilkinson et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Increased Transnational Sea Ice Transport Between Neighboring Arctic States in the 21^st Century

et al. 2020

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The Arctic is undergoing a rapid transition toward a seasonal ice regime, with widespread implications for the polar ecosystem, human activities, as well as the global climate. Here we focus on how the changing ice cover impacts transborder exchange of sea ice between the exclusive economic zones of the Arctic states. We use the Sea Ice Tracking Utility, which follows ice floes from formation to melt, in conjunction with output diagnostics from two ensembles of the Community Earth System Model that follow different future emissions scenarios. The Community Earth System Model projects that by midcentury, transnational ice exchange will more than triple, with the largest increase in the amount of transnational ice originating from Russia and the Central Arctic. However, long‐distance ice transport pathways are predicted to diminish in favor of ice exchanged between neighboring countries. By the end of the 21st century, we see a large difference between the two future emissions scenarios considered: Consistent nearly ice‐free summers under the high emissions scenario act to reduce the total fraction of transnational ice exchange compared to midcentury, whereas the low emissions scenario continues to see an increase in the proportion of transnational ice. Under both scenarios, transit times are predicted to decrease to less than 2 yr by 2100, compared to a maximum of 6 yr under present‐day conditions and 2.5 yr by midcentury. These significant changes in ice exchange and transit time raise important concerns regarding risks associated with ice‐rafted contaminants.

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Aeolian and Ice Transport of Matter (Including Pollutants) in the Arctic

Cited by 7 publications

References 32 publications

Insoluble Particles in the Snowpack of the Ob River Basin (Western Siberia) a 2800 km Submeridional Profile

Insoluble Particles in the Snowpack of the Ob River Basin (Western Siberia) a 2800 km Submeridional Profile

Distribution, Material and Chemical Composition of Sedimentary Matter of Rainfall on the Territory of the Kaliningrad Region Rf

Increased Transnational Sea Ice Transport Between Neighboring Arctic States in the 21^st Century

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Aeolian and Ice Transport of Matter (Including Pollutants) in the Arctic

Cited by 7 publications

References 32 publications

Insoluble Particles in the Snowpack of the Ob River Basin (Western Siberia) a 2800 km Submeridional Profile

Insoluble Particles in the Snowpack of the Ob River Basin (Western Siberia) a 2800 km Submeridional Profile

Distribution, Material and Chemical Composition of Sedimentary Matter of Rainfall on the Territory of the Kaliningrad Region Rf

Increased Transnational Sea Ice Transport Between Neighboring Arctic States in the 21st Century

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Increased Transnational Sea Ice Transport Between Neighboring Arctic States in the 21^st Century