圣弗朗西斯科河,在半干旱地区意义重大,面临水力发电厂和农业农药的影响。尽管对其水生生物进行了广泛的研究,尤其是鱼类繁殖生物学,关于毒性及其对人体健康影响的研究明显缺乏。这一差距凸显了在这个重要生态区进行有针对性研究的必要性。因此,这项研究旨在审查新兴关注污染物(CEC)的浓度,包括多氯联苯(PCB),多溴联苯醚(PBDEs),有机氯农药(OCPs),拟除虫菊酯类农药(PPs),三嗪农药(TP),和水中的有机磷农药(OPP),沉积物,和鱼(Pagioscionsquamossimus)。研究结果表明,沉积物中存在所有化合物类别,尽管水中的数量有限。生物成分在神经组织中表现出更高的浓度,其次是肝脏和肌肉,指示生物累积趋势。值得注意的是,在水和沉积物中都观察到了更多令人担忧的水平。特别是,水中氰戊菊酯和沉积物中的Prometon表现出最高的生物累积因子(BAF)值。而对于非致癌作用和癌症风险(CR),根据化学安全机构的要求,对参数进行了计算,并将所有参数分类为可接受或无关紧要的区域.然而,受到审查的化合物需要警惕的关注,鉴于它们在各种基质中几乎无处不在,并证明了生物蓄积性,未来可能对人类健康造成影响。
The São Francisco River, significant in semi-arid areas, faces impacts from hydroelectric plants and agricultural pesticides. Despite extensive research on its aquatic life, especially fish reproductive biology, there\'s a notable lack of studies on toxicity and its human health implications. This gap highlights the need for targeted research in this vital ecological zone. Consequently, this study aimed to scrutinize the concentrations of Contaminants of Emerging Concern (CECs), including Polychlorinated Biphenyls (PCBs), Polybrominated Diphenyl Ethers (PBDEs), Organochlorine Pesticides (OCPs), pyrethroid pesticides (PPs), triazine pesticides (TPs), and Organophosphorus Pesticides (OPPs) in the water, sediment, and fish (Plagioscion squamosissimus). The findings revealed the presence of all compound classes in sediment, albeit in limited quantities in water. Biotic components exhibited higher concentrations in nerve tissue, followed by the liver and muscle, indicative of a bioaccumulation trend. It is noteworthy that more concerning levels were observed in both water and sediments. In particular, Fenvalerate in water and Prometon in sediments demonstrated the highest Bioaccumulation Factor (BAF) values. While for non-carcinogenic effects and Cancer Risk (CR), the parameters were calculated and all classified in the areas of acceptable or insignificant according to chemical safety agencies. However, the compounds under scrutiny demand vigilant attention, given their nearly ubiquitous presence across various matrices and demonstrated bioaccumulative capacity, potentially posing future repercussions for human health.