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  • Title: Distribution of Butyltin Compounds in the Coastal Environment of the Bahía Blanca Estuary, Argentina.
    Author: Quintas PY, Arias AH, Alvarez MB, Domini CE, Garrido M, Marcovecchio JE.
    Journal: Arch Environ Contam Toxicol; 2021 Aug; 81(2):307-323. PubMed ID: 34268597.
    Abstract:
    This study evaluates for the first time the distribution and accumulation of butyltin compounds (BTs) in different compartments such as seawater, sediments, suspended particulate matter (SPM), and mussels (Brachidontes rodriguezii) in the Bahía Blanca estuary. The samples were collected from six sampling sites with different anthropogenic impacts. A better visualization and interpretation of data was achieved using chemometric tools (Tucker4 model), which made it possible to reveal the main relationships among the variables. This analysis showed the presence of BTs in all the estuarine environmental compartments, even in sites with low human intervention. The relationships found among BTs levels, seasons, and environmental matrices show the importance of biological processes such as phytoplankton blooms and remobilization of sediments (by tidal dynamics and/or periodic dredging) in BTs distribution and degradation. In addition, partition coefficients showed that mussels mainly bioaccumulate tributyltin from sediment, water and, to a lesser extent, SPM.
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