Risk assessment of methyl-mercury intake through cephalopods consumption in Portugal.
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
; 29(1): 94-103, 2012.
Article
em En
| MEDLINE
| ID: mdl-22040306
ABSTRACT
The intake of methyl-mercury (methyl-Hg) through the consumption of three common cephalopod species, cuttlefish (Sepia officinalis), squid (Loligo vulgaris) and octopus (Octopus vulgaris), in Portugal as well as the associated probability of exceeding the provisional tolerable weekly intake (PTWI) were estimated by combining methyl-Hg contamination levels in these three cephalopods with constructed consumption scenarios and with a hypothesised consumption distribution for the general Portuguese population. It was found that squid presents no serious health concern with respect to methyl-Hg, but cuttlefish and octopus consumption should not exceed two 150 g meals per week. Moreover, the methyl-Hg risk assessment for Portuguese consumers showed no risk concerning the observed cephalopods consumption levels. However, besides methyl-Hg, other toxic metals present in cephalopods, such as cadmium, may be a serious health concern and the methyl-Hg risk can be compounded by the risk of other foods containing significant methyl-Hg levels, especially long-lived sea predators. Accordingly, a cautionary note must be attached to advised maximum consumptions, which may be revised by future studies. Tail estimation (TE) estimator was more accurate for lower probabilities, rendering accurate risk estimations different from zero. However, for higher probabilities, the much simpler plug-in (PI) estimator could be applied. Additionally, limitations of a deterministic approach were identified.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
/
Cefalópodes
/
Compostos de Metilmercúrio
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
Europa
Idioma:
En
Revista:
Food Addit Contam Part A Chem Anal Control Expo Risk Assess
Ano de publicação:
2012
Tipo de documento:
Article