Probing the contamination characteristics, mobility, and risk assessments of typical plastic additive-phthalate esters from a typical coastal aquaculture area, China was written by Zhang, Ze-Ming;Wang, Liu-Yong;Gu, Yan-Yu;Sun, Ai-Li;You, Jin-Jie;Shi, Xi-Zhi;Chen, Jiong. And the article was included in Journal of Hazardous Materials in 2021.Computed Properties of C20H26O4 This article mentions the following:
Contamination characteristics, equilibrium partitioning and risk assessment of phthalate esters (PAEs) were investigated in seawater, sediment and biol. samples collected from the Xiangshan Bay area during an annual investigation between Jan. and Nov. 2019. PAE concentrations detected in the mariculture environment in surface seawater, sediment, and biol. samples were 172-3365 ng/L, 190-2430μg/kg (dry weight [dw]), and 820-4926μg/kg (dw), resp. The dominant congeners in different media included di-Bu phthalate (DnBP), diisobutyl phthalate (DiBP), and di(2-ethylhexyl) phthalate (DEHP). The inner bay and the bay mouth were the gathering area of PAEs and heavily influenced by the mariculture activities, river inputs, and anthropogenic activities. The bioaccumulation of PAEs demonstrated benthic feeding fishes with relatively high trophic levels concentrated high levels of phthalates. The mobility of PAEs in sediment-seawater showed that the transfer tendency of low-mol. weight species was from the sediment to the water, which was in contrast with those of high-mol. weight PAEs. DEHP, DiBP and DnBP had various degrees of ecol. risks in the aquatic environment, whereas only the DiBP posed potential risks in sediments. The current assessment of carcinogenic and noncarcinogenic risks posed by fish consumption were within acceptable limits for humans. In the experiment, the researchers used many compounds, for example, Dicyclohexyl phthalate (cas: 84-61-7Computed Properties of C20H26O4).
Dicyclohexyl phthalate (cas: 84-61-7) belongs to esters. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Liquid esters of low volatility serve as softening agents for resins and plastics. Esters also include many industrially important polymers. Polymethyl methacrylate is a glass substitute sold under the names Lucite and Plexiglas; polyethylene terephthalate is used as a film (Mylar) and as textile fibres sold as Terylene, Fortrel, and Dacron.Computed Properties of C20H26O4
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics