ArticleEnvironmental science & technology2025
Incorporation and Distribution of Polycyclic Aromatic Hydrocarbons in Experimental Sea-Ice.
Article in Environmental science & technology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Rapid melting of sea-ice makes the Arctic more accessible for marine shipping and other industrial activities, increasing the risk of oil spills in the Arctic Ocean. Polycyclic aromatic hydrocarbons (PAHs) are among the most toxic substances in petroleum oil, yet their behavior in sea-ice-covered waters remains poorly studied. Here, we report an outdoor microcosm study to examine the partitioning behavior of four PAHs (naphthalene, phenanthrene, pyrene, and benzo(a)pyrene) across the seawater-sea-ice-atmosphere interface in the presence of particulate humic acid as a surrogate for particulate organic carbon (POC). We show that the higher the molecular weight of the PAH, the higher its concentration in sea-ice and the POC fraction. The POC-aqueous phase (seawater or bulk sea-ice) partition coefficients,
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