Sources of Personal Care Product Contaminants in Coastal Waters Personal care products (PCPs) represent a significant class of emerging contaminants in coastal environments, with their presence primarily attributed to wastewater discharge pathways. These compounds enter aquatic systems through multiple routes: direct discharge from wastewater treatment plants (WWTPs) that often incompletely remove PCPs, recreational activities such […]

Environmental Sources of Steroid Hormones Steroid hormones enter wastewater systems through multiple pathways, primarily from human and veterinary pharmaceutical use, agricultural runoff, and industrial discharges. Natural and synthetic estrogens (estrone, estradiol, ethinylestradiol), androgens (testosterone), progestins, and corticosteroids are routinely detected in municipal wastewater treatment plant effluents at concentrations ranging from low ng/L to μg/L levels.

Pharmaceutical Contamination in Aquatic Sediments Pharmaceutical residues in river sediments represent a growing environmental concern with significant implications for ecosystem health. As wastewater treatment plants discharge effluents containing unmetabolized drugs and their transformation products, these compounds accumulate in sediment matrices where they can persist for extended periods. The hydrophobic nature of many pharmaceutical compounds facilitates