TY - JOUR

T1 - Black carbon as a source of trace elements and nutrients in ice sheet of king george island, antarctica

AU - Polyakov, Vyacheslav

AU - Abakumov, Evgeny

AU - Mavlyudov, Bulat

N1 - Polyakov, V.; Abakumov, E.; Mavlyudov, B. Black Carbon as a Source of Trace Elements and Nutrients in Ice Sheet of King George Island, Antarctica. Geosciences 2020, 10, 465.

PY - 2020/11

Y1 - 2020/11

N2 - Enormous deglaciation in the polar and mountainous regions of the Earth is associated not only with large-scale climatic changes but also with the global transfer of black carbon (BC) microparticles, which accumulate on the surface of glaciers and lead to changes in albedo and the rate of degradation of ice. BC is the product of an incomplete combustion of fossil fuels, volcanic eruptions, and wildfires. The accumulation of organogenic microparticles leads to the formation of cryoconites, which are dust made of a combination of small rock particles and the result of anthropogenic activities (fossil fuel combustion) that play a special role in deglaciation. Here, we describe the content of trace metals and nutrients in accumulation of the BC from glaciers of Fildes Peninsula, King George Island, Western Antarctica. The analysis of trace metals concentrations showed that most of the studied elements (Cr, Pb, Zn, Ni) have a volcanic origin; at the same time, Cd and Cu have been accumulated as a result of anthropogenic activity. The content of nutrients in BC are most similar with Technosols, which forms near the scientific station at King George Island. The particles of BC can be translocated into organisms, which could pose a significant risk for living organisms and humans.

AB - Enormous deglaciation in the polar and mountainous regions of the Earth is associated not only with large-scale climatic changes but also with the global transfer of black carbon (BC) microparticles, which accumulate on the surface of glaciers and lead to changes in albedo and the rate of degradation of ice. BC is the product of an incomplete combustion of fossil fuels, volcanic eruptions, and wildfires. The accumulation of organogenic microparticles leads to the formation of cryoconites, which are dust made of a combination of small rock particles and the result of anthropogenic activities (fossil fuel combustion) that play a special role in deglaciation. Here, we describe the content of trace metals and nutrients in accumulation of the BC from glaciers of Fildes Peninsula, King George Island, Western Antarctica. The analysis of trace metals concentrations showed that most of the studied elements (Cr, Pb, Zn, Ni) have a volcanic origin; at the same time, Cd and Cu have been accumulated as a result of anthropogenic activity. The content of nutrients in BC are most similar with Technosols, which forms near the scientific station at King George Island. The particles of BC can be translocated into organisms, which could pose a significant risk for living organisms and humans.

KW - Antarctica

KW - Black carbon

KW - Cryoconite

KW - Nutrients

KW - Organic matter

UR - http://www.scopus.com/inward/record.url?scp=85096525809&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/01426dea-395f-3cd2-980f-ba94a3dc8ba7/

U2 - 10.3390/geosciences10110465

DO - 10.3390/geosciences10110465

M3 - Article

AN - SCOPUS:85096525809

VL - 10

JO - Geosciences (Switzerland)

JF - Geosciences (Switzerland)

SN - 2076-3263

IS - 11

M1 - 465

ER -