The use of biomimetic tools for water quality monitoring: passive samplers versus sentinel organisms

To evaluate the performance of artificial and biological integrative sampling strategies, dissolved concentrations of polychlorinated biphenyl (PCBs) and metals (Cu and Mn) were measured with passive sampler devices (PSD) enclosing hydrophobic and chelating phases, and Asiatic clams were transplante...

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Autores principales: Morrone, Manuel, Cappelletti, Natalia Elsa, Tatone, Leandro Martín, Astoviza, Malena Julia, Colombo, Juan Carlos
Formato: Articulo
Lenguaje:Inglés
Publicado: 2021
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/136625
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id I19-R120-10915-136625
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Passive sampling
Biomimetic tools
Sentinel organism
PCBs
Metals
spellingShingle Ciencias Naturales
Passive sampling
Biomimetic tools
Sentinel organism
PCBs
Metals
Morrone, Manuel
Cappelletti, Natalia Elsa
Tatone, Leandro Martín
Astoviza, Malena Julia
Colombo, Juan Carlos
The use of biomimetic tools for water quality monitoring: passive samplers versus sentinel organisms
topic_facet Ciencias Naturales
Passive sampling
Biomimetic tools
Sentinel organism
PCBs
Metals
description To evaluate the performance of artificial and biological integrative sampling strategies, dissolved concentrations of polychlorinated biphenyl (PCBs) and metals (Cu and Mn) were measured with passive sampler devices (PSD) enclosing hydrophobic and chelating phases, and Asiatic clams were transplanted to a polluted area in the Rio de la Plata. Water concentrations based on PSD were compared with spot water samples collected at 0, 15, 32, and 63 days of exposition. PCBs and metals displayed linear accumulation kinetics both in PSDs and bivalves, but with different slopes. PCBs slopes were 2–27 times higher in bivalves (0.3–7.9 vs. 0.1–2.6 ng g⁻¹ d⁻¹ in PSDs) reflecting active filtration and uptake from particles, colloids, and dissolved phase, whereas metal slopes were 2.5–11 times lower in bivalves (0.04–0.18 vs. 0.10–2.00 μg g⁻¹ d⁻¹ in PSDs) suggesting metal bioregulation. Truly dissolved PCB concentrations from PSD (4.0–6.9 ng.l⁻¹) represented average 13±4 % of PCB concentrations from filtered spot water samples reflecting the operational discrimination of the PSD diffusion membrane on competing dissolved and colloidal organic phases. In contrast, PSD dissolved Cu concentrations (2.3–8.2 μg l⁻¹) were equivalent to the spot water values (3.2–3.8 μg l⁻¹) suggesting that Cu speciation was adequately integrated by passive sampling. On the other hand, PSD-dissolved Mn concentrations (49±38 μg l⁻¹) were higher (p<0.05) than those from spot water samples (7±11μg l⁻¹) possibly due to phase changes of Mn distribution related to variable redox conditions in the water. Results evidenced that the PSDs are efficient accumulators of metals and organic compounds from the truly dissolved fraction.
format Articulo
Articulo
author Morrone, Manuel
Cappelletti, Natalia Elsa
Tatone, Leandro Martín
Astoviza, Malena Julia
Colombo, Juan Carlos
author_facet Morrone, Manuel
Cappelletti, Natalia Elsa
Tatone, Leandro Martín
Astoviza, Malena Julia
Colombo, Juan Carlos
author_sort Morrone, Manuel
title The use of biomimetic tools for water quality monitoring: passive samplers versus sentinel organisms
title_short The use of biomimetic tools for water quality monitoring: passive samplers versus sentinel organisms
title_full The use of biomimetic tools for water quality monitoring: passive samplers versus sentinel organisms
title_fullStr The use of biomimetic tools for water quality monitoring: passive samplers versus sentinel organisms
title_full_unstemmed The use of biomimetic tools for water quality monitoring: passive samplers versus sentinel organisms
title_sort use of biomimetic tools for water quality monitoring: passive samplers versus sentinel organisms
publishDate 2021
url http://sedici.unlp.edu.ar/handle/10915/136625
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