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http://hdl.handle.net/10773/22599
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Grilo, T. F. | pt |
dc.contributor.author | Cardoso, P. G. | pt |
dc.contributor.author | Pato, P. | pt |
dc.contributor.author | Duarte, A. C. | pt |
dc.contributor.author | Pardal, M. A. | pt |
dc.date.accessioned | 2018-03-12T11:40:06Z | - |
dc.date.issued | 2014 | - |
dc.identifier.issn | 0147-6513 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/22599 | - |
dc.description.abstract | A medium-term mesocosm exposure study was conducted to elucidate bioaccumulation and depuration of polychlorinated biphenyl congener 153 (PCB-153) in edible shrimp Palaemonetes varians. Over the 15-day exposure period, shrimp under different exposure concentrations exhibited a significant increase in PCB-153 concentration compared with control organisms. Distinct bioaccumulation patterns and uptake rates were observed depending on the exposure concentrations. For low PCB-153 exposure levels (0.25μgL-1), accumulation followed a saturation model, reaching an apparent steady state after fifteen days exposure. For intermediate (2.5μgL-1) and high PCB-153 levels (25μgL-1), accumulation was faster and linear. In addition, the bioaccumulation rate was not proportional to PCB-153 concentration, and the bioaccumulation was higher at intermediate exposure concentrations. Regarding the depuration phase, P. varians lost up to 30% of PCB-153 after 72h and levels continued slowly to decrease until the end of the 30-d experimental period. However, PCB-153 levels in shrimp did not reach background values, and those exposed to moderate and high PCB-153 concentrations presented contamination levels much higher than the regulatory limit for human food consumption (75ngg-1 ww for σ6 PCB). | pt |
dc.language.iso | eng | pt |
dc.publisher | Elsevier | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F35068%2F2007/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/5876-PPCDTI/101906/PT | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F44936%2F2008/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | Bioaccumulation | pt |
dc.subject | Depuration | pt |
dc.subject | Food safety | pt |
dc.subject | Human health | pt |
dc.subject | PCB-153 | pt |
dc.subject | Palaemonetes varians | pt |
dc.title | Uptake and depuration of PCB-153 in edible shrimp Palaemonetes varians and human health risk assessment | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 97 | pt |
degois.publication.issue | 1 | |
degois.publication.lastPage | 102 | pt |
degois.publication.title | Ecotoxicology and Environmental Safety | pt |
degois.publication.volume | 101 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.identifier.doi | 10.1016/j.ecoenv.2013.12.020 | pt |
Appears in Collections: | CESAM - Artigos DQ - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Grilo et al. - 2014 - Uptake and depuration of PCB-153 in edible shrimp .pdf | 404.17 kB | Adobe PDF |
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