Despite the growing public interest in perfluorinated compounds (PFCs), very few studies have reported the sources and pathways of human exposure to these compounds in China. In this study, concentrations of 10 PFCs were measured in human blood, water (tap water and surface water), freshwater fish, and seafood samples collected from China. On the basis of the data, we calculated daily intakes of PFCs, regional differences in human exposures, and potential risks associated with ingestion of PFCs from diet, drinking water, and indoor dust for the Chinese population. Perfluorooctane sulfonate (PFOS) was the most predominant PFC found with a mean concentration of 12.5 ng/mL in human blood from Tianjin and 0.92 ng/g wet wt in freshwater fish and seafood; perfluorooctanoic acid (PFOA) was the major PFC found in drinking water at a concentration range of 0.10 to 0.92 ng/L. The estimated daily intake of PFOS and PFOA via fish and seafood consumption (EDI(fish&seafood)) ranged from 0.10 to 2.51 and 0.13 to 0.38 ng/kg bw/day, respectively, for different age groups (i.e., toddlers, adolescents and children, and adults) from selected locations (i.e., Tianjin, Nanchang, Wuhan, and Shenyang). The EDI(fish&seafood) of PFCs decreased (p < 0.05) with age. The estimated daily intake of PFOS and PFOA via drinking water consumption (EDI(drinking water)) ranged from 0.006 to 0.014 and 0.010 to 0.159 ng/kg bw/day, respectively. Comparison of EDI(fish&seafood) and EDI(drinking water) values with those of the modeled total dietary intake (TDI) of PFCs by adults from Tianjin, Nanchang, Wuhan, and Shenyang showed that contributions of fish and seafood to TDI of PFOS varied depending on the location. Fish and seafood accounted for 7%, 24%, 80%, and 84% of PFOS intake in Nanchang, Shenyang, Wuhan, and Tianjin, respectively, suggesting regional differences in human exposure to PFOS. Drinking water was a minor source of PFOS (<1%) exposure in adults from all the study locations.
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The Atlantic wolffish (Anarhichas lupus) is a cold-water fish with potential for aquaculture diversification. To unveil the mechanisms underlying the compromised growth in Atlantic wolffish when reared at higher temperatures, we investigated the relationship between temperature, growth rate, aerobic capacity, stress biomarkers, and gut barrier function. Juveniles acclimated to 10°C were maintained at 10°C (control) or exposed to 15°C for either 24 h (acute exposure) or 50 days (chronic exposure).
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
December 2024
Department of Advanced Materials, Central Metallurgical R & D Institute (CMRDI), P.O. box 87, Helwan, Cairo, Egypt.
An overview of various industrial and bio-applications of unavoidable bio-waste materials reported in the literature over the last 25 years is presented in this review. Calcium-based food wastes or "unavoidable bio-wastes" are hybrid bio-composite materials, consisting of a softer organic matrix surrounding a stiff mineralized ceramic phase. A wide range of different bio-wastes that are already in use or are investigated for multipurpose applications are presented.
View Article and Find Full Text PDFBMC Ophthalmol
December 2024
Department of Ophthalmology, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Chongqing Key Laboratory of Pediatric, Children's Hospital of Chongqing Medical University, 136, Zhongshan 2nd RD, Yuzhong District, Chongqing, 400014, China.
Purpose: To assess the correlation of body mass index (BMI), diet and lifestyle with allergic conjunctivitis (AC) in children.
Methods: This prospective case-control study included 105 children with AC and 105 age- and sex-matched children with no AC. Clinical data were collected, including BMI, dietary habits, physical activity, and sleep time.
Sci Total Environ
December 2024
Université Côte d'Azur, CNRS, ECOSEAS, France. Electronic address:
Methylmercury (MeHg) is a widespread contaminant that bioaccumulates in marine food webs, including those in the Mediterranean sea. It poses serious health risks, especially to developing infants and children, where exposure can cause neurological damage and developmental delays. In addition to health concerns, high MeHg levels in seafood can lead to economic losses through cognitive impairments that reduce productivity.
View Article and Find Full Text PDFFood Chem
December 2024
State Key Laboratory of Marine Food Processing and Safety Control, College of Food Science and Engineering, Ocean University of China, Qingdao, 266404, PR China; Laboratory for Marine Drugs and Bioproducts, Qingdao Marine Science and Technology Center, Qingdao, 266237, PR China; Qingdao Key Laboratory of Food Biotechnology, Qingdao, 266404, PR China; Key Laboratory of Biological Processing of Aquatic Products, China National Light Industry, Qingdao, 266404, PR China. Electronic address:
Liquid nitrogen freezing (LNF) pretreatment is an effective means of maintaining seafood quality during frozen storage. To improve the meat quality of gazami crab (Portunus trituberculatus) during frozen storage, this study investigated the effects of LNF temperatures on the meat quality of gazami crab. Fresh crab was pre-treated with different LNF temperatures (-60 °C, -80 °C, -100 °C, -120 °C), and then freeze in refrigerator at -18 °C.
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