Anti-fouling biocide zinc pyrithione (ZnPT) and its biological fate have received little attention because this compound was assumed not to be persistent in marine ecosystems.We developed an analytical procedure that proved to be efficient and very sensitive in extracting ZnPT and its main secondary products, zinc and ionized PT‾, from both seawater and biological samples, namely in gills and digestive gland of the bioindicator species Mytilus galloprovincialis. Short-term experiments were carried out to investigate ZnPT toxicity and bioaccumulation. The effects on survival and the tissue bioaccumulation of ZnPT and its secondary products were studied on adult mussels from a natural population, collected inside the harbour area of Porto Santo Stefano (Italy) and exposed to sublethal doses of the biocide up to 7 days.ZnPT was shown to be persistent in experimental seawater in the short term. A basal level of ZnPT and ionized PT‾ was detected in mussels, indicating that ZnPT availability in the sampling site is already high enough to induce a detectable accumulation in individuals of the native population. ZnPT rapidly accumulated in tissues of the exposed mussels, proportionately to both exposure concentration and time, identifying the gills and the digestive gland as important targets in the biological path of the contaminants.Even though the 7day-LC50 = 8.27 µM established here appears high with respect to reported ZnPT environmental concentrations, our results indicate that this biocide could represent a threat for marine organisms in coastal environments and that further investigations on its biological effects at sublethal doses are needed.

Novel antifouling agent zinc pyrithione: determination, acute toxicity and bioaccumulation in marine mussels (Mytilus galloprovincialis) / Marcheselli, Marco; Rustichelli, Cecilia; Mauri, Marina. - In: ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. - ISSN 0730-7268. - STAMPA. - 29:(2010), pp. 2583-2592. [10.1002/etc.316]

Novel antifouling agent zinc pyrithione: determination, acute toxicity and bioaccumulation in marine mussels (Mytilus galloprovincialis)

MARCHESELLI, Marco;RUSTICHELLI, Cecilia;MAURI, Marina
2010

Abstract

Anti-fouling biocide zinc pyrithione (ZnPT) and its biological fate have received little attention because this compound was assumed not to be persistent in marine ecosystems.We developed an analytical procedure that proved to be efficient and very sensitive in extracting ZnPT and its main secondary products, zinc and ionized PT‾, from both seawater and biological samples, namely in gills and digestive gland of the bioindicator species Mytilus galloprovincialis. Short-term experiments were carried out to investigate ZnPT toxicity and bioaccumulation. The effects on survival and the tissue bioaccumulation of ZnPT and its secondary products were studied on adult mussels from a natural population, collected inside the harbour area of Porto Santo Stefano (Italy) and exposed to sublethal doses of the biocide up to 7 days.ZnPT was shown to be persistent in experimental seawater in the short term. A basal level of ZnPT and ionized PT‾ was detected in mussels, indicating that ZnPT availability in the sampling site is already high enough to induce a detectable accumulation in individuals of the native population. ZnPT rapidly accumulated in tissues of the exposed mussels, proportionately to both exposure concentration and time, identifying the gills and the digestive gland as important targets in the biological path of the contaminants.Even though the 7day-LC50 = 8.27 µM established here appears high with respect to reported ZnPT environmental concentrations, our results indicate that this biocide could represent a threat for marine organisms in coastal environments and that further investigations on its biological effects at sublethal doses are needed.
2010
29
2583
2592
Novel antifouling agent zinc pyrithione: determination, acute toxicity and bioaccumulation in marine mussels (Mytilus galloprovincialis) / Marcheselli, Marco; Rustichelli, Cecilia; Mauri, Marina. - In: ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY. - ISSN 0730-7268. - STAMPA. - 29:(2010), pp. 2583-2592. [10.1002/etc.316]
Marcheselli, Marco; Rustichelli, Cecilia; Mauri, Marina
File in questo prodotto:
File Dimensione Formato  
Zn Piritione ET&C Mussel pubblicato.pdf

Solo gestori archivio

Tipologia: Versione pubblicata dall'editore
Dimensione 353.74 kB
Formato Adobe PDF
353.74 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/641059
Citazioni
  • ???jsp.display-item.citation.pmc??? 1
  • Scopus 32
  • ???jsp.display-item.citation.isi??? 32
social impact