Quantification of insecticides in commercial seafood sold in East Asian markets: risk assessment for consumers

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Ivorra, L (Author) Other; Cardoso, PG (Author) Other; Chan, SK (Author) Other; Cruzeiro, C (Author) Other; Tagulao, K (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH

Vol. 30

ISSN: 0944-1344

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 1 Citation

Other information

Authenticus ID: P-00X-MKN

DOI: 10.1007/s11356-022-24413-7

Abstract (EN): The extraction of 21 insecticides and 5 metabolites was performed using an optimized and validated QuEChERS protocol that was further used for the quantification (GC-MS/MS) in several seafood matrices (crustaceans, bivalves, and fish-mudskippers). Seven species, acquired from Hong Kong and Macao wet markets (a region so far poorly monitored), were selected based on their commercial importance in the Indo-Pacific region, market abundance, and affordable price. Among them, mussels from Hong Kong, together with mudskippers from Macao, presented the highest insecticide concentrations (median values of 30.33 and 23.90 ng/g WW, respectively). Residual levels of fenobucarb, DDTs, HCHs, and heptachlors were above the established threshold (10 ng/g WW) for human consumption according to the European and Chinese legislations: for example, in fish-mudskippers, DDTs, fenobucarb, and heptachlors (5-, 20- and tenfold, respectively), and in bivalves, HCHs (fourfold) had higher levels than the threshold. Risk assessment revealed potential human health effects (e.g., neurotoxicity), especially through fish and bivalve consumption (non-carcinogenic risk; sigma HQ(LT) > 1), and a potential concern of lifetime cancer risk development through the consumption of fish, bivalves, and crustaceans collected from these markets (carcinogenic risk; sigma TCR > 10(-4)). Since these results indicate polluted regions, where the seafood is collected/produced, a strict monitoring framework should be implemented in those areas to improve food quality and safety of seafood products.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 13