Organochlorine pesticide residues in European sardine, horse mackerel and Atlantic mackerel from Portugal

Faculty of Pharmacy, University of Coimbra, Coímbra, Coimbra, Portugal
Food Additives and Contaminants (Impact Factor: 2.13). 08/2005; 22(7):642-6. DOI: 10.1080/02652030500136969
Source: PubMed


This paper reports the results for the surveillance of nine organochlorine pesticides (HCH isomers (alpha, beta, e, gamma), p,p'-DDD, p,p'-DDT, p,p'-DDE, p,p'-DDD, HCB and aldrin) in muscle of three fish species, European pilchard (Sardina pilchardus), Atlantic horse mackerel (Trachurus trachurus) and Atlantic mackerel (Scomber scombrus). Analytical methodology included n-hexane extraction, clean-up with 2% deactivated Florisil, and quantification with gas chromatography-electron capture detection (GC-ECD). The highest mean concentrations were found for p,p'-DDT in sardine and mackerel at levels of 30.1 and 109.9 microg kg(-1), respectively, and for p,p'-DDD in horse mackerel at 51.9 microg kg(-1). Three species had higher levels for S-DDT than S-HCH. The estimated daily intake of organochlorine pesticides in the three species showed that in sardine, the highest EDIs were found for aldrin, at 1.8 ng kg(-1) bw day(-1), which represents 1.8% of the acceptable daily intake (ADI), and for ss-HCH, at 4.0 ng kg(-1) bw day(-1), representing 0.4% of ADI. Lowest values were found for Atlantic mackerel. Statistical analysis to determine the differences in mean concentrations of pesticides between species, and any correlation between groups of residues related with each one of the species, was undertaken.

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    • "The fungal infections might be considered as the main factor influencing the health of plants at the early stages of their growth and development. Constant and broad use of synthetic pesticides is posing serious threat to the life supporting systems due to their residual toxicity (Andrea et al., 2000; Harris et al., 2001; Campos et al., 2005). In the past two decades, a considerable amount of work has done on plant-derived compounds as environmentally safe alternatives to pesticides for plant disease control (Rice, 1984; Vyvyan, 2002). "
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