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Microplastics in the first-year sea ice of the Novik Bay, Sea of Japan

Marine Pollution Bulletin 2022 13 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Clarissa Raguso, Irina Chubarenko Clarissa Raguso, Irina Chubarenko Clarissa Raguso, Irina Chubarenko Irina Chubarenko Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Olga Lobchuk, Clarissa Raguso, Marina Lasagni, Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Irina Chubarenko Olga Lobchuk, Olga Lobchuk, Olga Lobchuk, Olga Lobchuk, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, Francesco Saliu, A. Yu. Lazaryuk, A. Yu. Lazaryuk, T. Yu. Orlova, Irina Chubarenko Irina Chubarenko Irina Chubarenko Marina Lasagni, Clarissa Raguso, Irina Chubarenko Olga Lobchuk, Olga Lobchuk, Francesco Saliu, Francesco Saliu, Olga Lobchuk, Francesco Saliu, Irina Chubarenko Irina Chubarenko Andrey Zyubin, Francesco Saliu, Irina Chubarenko Irina Chubarenko Francesco Saliu, Irina Chubarenko Marina Lasagni, Francesco Saliu, A. Yu. Lazaryuk, Francesco Saliu, Irina Chubarenko Marina Lasagni, Francesco Saliu, Marina Lasagni, Irina Chubarenko Irina Chubarenko Irina Chubarenko Marina Lasagni, Marina Lasagni, Olga Lobchuk, Olga Lobchuk, Olga Lobchuk, Marina Lasagni, Irina Chubarenko Irina Chubarenko Marina Lasagni, Irina Chubarenko Irina Chubarenko Francesco Saliu, Marina Lasagni, Clarissa Raguso, Francesco Saliu, Clarissa Raguso, Clarissa Raguso, Francesco Saliu, Clarissa Raguso, Marina Lasagni, Marina Lasagni, Marina Lasagni, Marina Lasagni, Marina Lasagni, Francesco Saliu, Marina Lasagni, Olga Lobchuk, Olga Lobchuk, T. Yu. Orlova, Francesco Saliu, Marina Lasagni, Marina Lasagni, Marina Lasagni, Marina Lasagni, Andrey Zyubin, Francesco Saliu, Francesco Saliu, Andrey Zyubin, Francesco Saliu, Marina Lasagni, Marina Lasagni, Marina Lasagni, Irina Chubarenko Marina Lasagni, Francesco Saliu, Irina Chubarenko Marina Lasagni, Marina Lasagni, Irina Chubarenko Francesco Saliu, Francesco Saliu, Marina Lasagni, Marina Lasagni, Irina Chubarenko

Summary

Researchers analyzed microplastic content layer-by-layer in first-year sea ice cores from Novik Bay in the Sea of Japan using micro-FTIR for small particles and visual plus Raman spectroscopy for larger particles, finding an integral mean abundance of 428 items per liter with fibers dominating larger size fractions, and suggesting that small fibers are lost from ice via brine drainage.

Sea ice is heavily contaminated with microplastics particles (MPs, <5 mm). First-year sea ice cores (38-41 cm thick) were taken in the beginning of spring in a narrow populated bay of the Sea of Japan. Two ice cores were examined (layer-by-layer, excluding surface) for MPs content: one using μ-FTIR for 25-300 μm (SMPs), and another one - with visual+Raman identification for 300-5000 μm particles (LMPs). The integral (25-5000 μm) bulk mean abundance of MPs was found to be 428 items/L of meltwater, with fibers making 19 % in SMPs size range and 59 % in LMPs. Integral mean mass of MPs was estimated in 34.6 mg/L, with 99.6 % contribution from fragments of LMPs. Comparison with simple fragmentation models confirms deficit of SMPs (especially of fibers in size range 150-300 μm), suggested to result from their leakage with brine. Multivariate statistical analysis indicates strong positive correlation of large fiber (>300 μm) counts and ice salinity.

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