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Hydrocarbon thơm đa vòng (PAHs) trong Crassostrea rhizophorae và Cathorops spixii từ đầm lầy Caroni, Trinidad, Ấn Độ Tây
Tóm tắt
Sự tiếp xúc với các hợp chất hydrocarbon thơm đa vòng (PAHs) qua chế độ ăn uống có thể gây ra những mối đe dọa nghiêm trọng cho sức khỏe con người. Tuy nhiên, trong khu vực Caribê, các đánh giá định lượng về những rủi ro liên quan đến sự tiếp xúc PAH qua chế độ ăn vẫn còn ít ỏi. Nghiên cứu này điều tra sự hiện diện của PAH trong các loài sinh vật có thể ăn được từ đầm lầy Caroni và đánh giá định lượng mối đe dọa sức khỏe tiềm tàng đối với người tiêu dùng. Nghêu rừng (Crassostrea rhizophorae) và cá hồng Madamango (Cathorops spixii) thu thập từ bảy địa điểm trong đầm lầy Caroni đã được phân tích cho 16 PAH ưu tiên. Mức độ PAH tổng cộng dao động từ 109 ± 18,4 đến 362 ± 63,0 ng/g khối lượng khô ở Crassostrea rhizophorae và từ 7,5 ± 0,9 đến 43,5 ± 25,5 ng/g khối lượng khô ở Cathorops spixii (trung bình ± độ lệch chuẩn). Mức độ Benzo[a]pyrene trong Crassostrea rhizophorae ở tất cả các địa điểm đều vượt quá các hướng dẫn quốc tế từ British Columbia (Canada) và Liên minh Châu Âu (EU). Giá trị rủi ro ung thư theo thời gian sống gia tăng (ILCR) dựa trên lượng tiêu thụ Crassostrea rhizophorae dao động từ 8,4 × 10−6 đến 1,6 × 10−5 và vượt nhẹ so với mức rủi ro chấp nhận được 1 × 10−6 thường được sử dụng. Thông tin từ nghiên cứu này là quan trọng trong việc hiểu các rủi ro sức khỏe tiềm tàng do PAHs gây ra, điều này rất quan trọng trong việc bảo vệ sức khỏe cộng đồng và cung cấp một cơ sở hữu ích để so sánh với các công việc trong tương lai.
Từ khóa
#hydrocarbon thơm #PAHs #Crassostrea rhizophorae #Cathorops spixii #đầm lầy Caroni #TrinidadTài liệu tham khảo
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