On January 1, 2021, Boyd, Aaron; Stewart, Connor B.; Philibert, Danielle A.; How, Zuo Tong; El-Din, Mohamed Gamal; Tierney, Keith B.; Blewett, Tamzin A. published an article.Recommanded Product: 2-Ethylhexyl 2-cyano-3,3-diphenylacrylate The title of the article was Effect of organic ultraviolet absorbing compounds from PCPs on Daphnia magna. And the article contained the following:
UV filters are compounds utilized in many manufacturing processes and personal care products (PCPs) such as sunscreen to protect against UV-radiation. These highly lipophilic compounds are emerging contaminants of concern in aquatic environments due to their previously observed potential to bioaccumulate and exert toxic effects in marine ecosystems. Currently, research into the toxic effects of UV filter contamination of freshwater ecosystems is lacking, thus the present study sought to model the effects of acute and chronic developmental exposures to UV filters avobenzone, oxybenzone and octocrylene as well as a mixture of these substances in the freshwater invertebrate, Daphnia magna, at environmentally realistic concentrations Median 48-h effect and lethal concentrations were determined to be in the low mg/L range, with the exception of octocrylene causing 50% immobilization near environmental concentrations 48-h acute developmental exposures proved to behaviorally impair daphnid phototactic response; however, recovery was observed following a 19-day post-exposure period. Although no physiol. disruptions were detected in acutely exposed daphnids, delayed mortality was observed up to seven days post-exposure at 200μg/L of avobenzone and octocrylene. 21-day chronic exposure to 7.5μg/L octocrylene yielded complete mortality within 7 days, while sublethal chronic exposure to avobenzone increased Daphnia reproductive output and decreased metabolic rate. 2μg/L oxybenzone induced a 25% increase in metabolic rate of adult daphnids, and otherwise caused no toxic effects at this dose. These data indicate that UV filters can exert toxic effects in freshwater invertebrates, therefore further study is required. It is clear that the most well-studied UV filter, oxybenzone, may not be the most toxic to Daphnia, as both avobenzone and octocrylene induced behavioral and physiol. disruption at environmentally realistic concentrations The experimental process involved the reaction of 2-Ethylhexyl 2-cyano-3,3-diphenylacrylate(cas: 6197-30-4).Recommanded Product: 2-Ethylhexyl 2-cyano-3,3-diphenylacrylate
The Article related to organic uv absorber pcp daphnia magna sunscreen freshwater pollution, avobenzone, emerging contaminant, octocrylene, oxybenzone, Water: Analysis and other aspects.Recommanded Product: 2-Ethylhexyl 2-cyano-3,3-diphenylacrylate
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