Homem, Vera published the artcileGone with the flow – Assessment of personal care products in Portuguese rivers, Formula: C15H20O3, the main research area is personal care product flow Portuguese river; GC–MS/MS; Personal care products; Solid-phase microextraction; Surface water.
Although there are several works in the literature that study the presence of pharmaceuticals and personal care products (PPCPs) in surface waters, the vast majority focus their attention on pharmaceuticals and little information is found about personal care products (PCPs). Therefore, this study focused, for the first time, on the monitoring of five classes of PCPs-fragrance allergens, synthetic musks, phthalates, antioxidants, and UV-filters-in the surface water of four small-size typically pollution-impacted Portuguese rivers (Ave, Leca, Antua≈and Certima). A solid-phase microextraction (SPME) followed by gas chromatog.-tandem mass spectrometry (GC-MS/MS) protocol was employed to analyze surface water samples collected in two seasonal campaigns-summer and winter (34 samples per season). A total of 22 out of 37 target PCPs were detected concomitantly at least once in one sampling point, being the most frequently detected α-isomethyl ionone, galaxolide, tonalide and cashmeran. The highest concentrations were confirmed for diethylhexyl phthalate (610.6 ng L-1), galaxolide (379.2 ng L-1), geraniol (290.9 ng L-1), linalool (271.2 ng L-1), benzophenone-3 (254.1 ng L-1) and citronellol (200.2 ng L-1). Leca River, traversing the more densely urban and industrialized area, had the highest levels of contaminants, which were also found in the sampling points located downstream of wastewater treatment plants discharge points. In general, higher levels were detected in summer, when the river flows are lower. Hazard quotients were determined and octocrylene, tonalide, and geraniol presented values above 1 in some sampling sites, which may indicate an ecotoxicol. risk to the aquatic environment. The results presented suggest that these three PCPs should be included as priority pollutants in environmental monitoring schemes in surface waters, due to their high detection, persistence, and potential adverse effects.
Chemosphere published new progress about Daphnia. 71617-10-2 belongs to class esters-buliding-blocks, name is Isopentyl 3-(4-methoxyphenyl)acrylate, and the molecular formula is C15H20O3, Formula: C15H20O3.
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics