التفاصيل البيبلوغرافية
| العنوان: |
Lifetime bioaccumulation, gender difference, tissue distribution, and parental transfer of organophosphorus plastic additives in freshwater fish. |
| المؤلفون: |
Peng, Xianzhi, Chen, Guangshi, Fan, Yujuan, Zhu, Zewen, Guo, Shang, Zhou, Jing, Tan, Jianhua |
| المصدر: |
Environmental Pollution; Jul2021, Vol. 280, pN.PAG-N.PAG, 1p |
| مصطلحات موضوعية: |
PLASTIC additives, GENDER differences (Sociology), FRESHWATER fishes, PLASTIC scrap, BIOACCUMULATION, UROTHELIUM, OTOLITHS |
| مصطلحات جغرافية: |
GUANGDONG Sheng (China), CHINA |
| مستخلص: |
Plastic pollution has been a growing global issue. Various plastic additives may enter the environment with plastic debris, which could also become contaminants. Lifetime bioaccumulation, gender difference, tissue distribution, and parental transfer potential of commonly applied organophosphorus plastic additives (OPPAs) were investigated in wildlife fish of the Pearl River system, China. The OPPAs were widely detected in 7 consumable fish species. Tris (2-chloropropyl) phosphate was the predominant compound, with a median concentration of 18.8 ng/g lipid weight. The total OPPA concentrations (ΣOPPAs) were higher in the livers and swimming bladders, suggesting important roles of lipophilicity on the OPPAs accumulation in the fish. Besides, the livers were more abundant in the non-chlorinated OPPAs relative to the other tissues, indicating potentially stronger metabolism of the chlorinated OPPAs in the livers. Redbelly tilapia contained obviously lower ΣOPPAs than the other species. On the other hand, proportions of the chlorinated OPPAs were obviously lower in barbel chub and Guangdong black bream. For an individual species, higher ΣOPPAs were usually detected in the female than in the male fish. Furthermore, the females contained higher proportions of the non-chlorinated OPPAs. These results suggested potentially more accumulation of the OPPAs, particularly the non-chlorinated OPPAs in the female than in the male fish. Body weight dependence of the OPPAs accumulation showed varied patterns depending on species, tissue, and compound. Species-specific characteristics affected by both ecology and organisms' physiology should be considered in combination in assessing bioaccumulation of the OPPAs. The OPPAs were slightly bioaccumulative with LogBAFs of 1.2–3.3. The OPPAs did not show obvious inclination to be partitioned to biota from sediment. Omnipresence of the OPPAs in both egg/ovary and testis of the fish suggested potential transgenerational transfer of these chemicals, which can be a serious ecological issue and warrants further research. [Display omitted] • Higher OPPAs levels were usually detected in the female than in the male fish. • Nonchlorinated and chlorinated OPPAs were more abundant in the female and male fish, respectively. • Body weight dependent accumulation of the OPPAs varied by species, tissue, and compound. • The OPPAs were widely present in eggs and testis of the fish. The organophosphorus plastic additives were generally more abundant in the female than the male fish and have potential of paternal transfer. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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