Feng, Xiaoxia;Li, Dong;Liang, Wenqing;Ruan, Ting;Jiang, Guibin published 《Recognition and prioritization of chemical mixtures and transformation products in Chinese estuarine waters by suspect screening analysis》 in 2021. The article was appeared in 《Environmental Science & Technology》. They have made some progress in their research.Recommanded Product: 3-Cyanopyridine The article mentions the following:
Chem. mixtures in surface waters could have significant impacts on exposure risks to human beings and pollution stress to aquatic system. By suspect screening anal. of high-resolution mass spectrometry data, occurrence, and compositions of ToxCast chems. were investigated in grab estuarine water samples from a combination of 20 rivers that represents approx. 70% of the total river flow discharge along the east coast of China. In total, 59 ToxCast chems. in seven use categories were identified, in which pesticides, intermediates, and pharmaceuticals were the abundant analogs. Significant differences in pollutant composition profiles were noticed, which possibly reflected singular release pattern and geog.-relevant usage preference (especially for herbicides and fungicides in the pesticide category). With the aid of tentative quant./semiquant. measurement, essential contributors to the cumulative pollutant mass discharges and aquatic acute toxicity potentials were focused onto few particular chems. Existence of transformation products was further explored, which indicated that the fates of the selected parent ToxCast chems. could be influenced by dominating transformation reactions (e.g., N-dealkylation and hydroxylation) and possible environmental factors (i.e., microbial activity). The results emphasize the necessity of suspect screening anal. for assessing the influence of terrestrial emissions of pollutants to the surrounding environment. And 3-Cyanopyridine (cas: 100-54-9) was used in the research process.
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