Toxicological analysis of water mixtures of organic micropollutants subjected to UV irradiation

Abstract

Abstract. The paper presents the toxicological analysis of water solutions of micropollutants from different groups i.e. industrial additives, pharmaceutical compounds, hormones, UV blockers and pesticides before and after their exposure to UV light. The toxicological response of both Microtox ® and Daphtoxkit F ® test, increased with the increase of the compound concentration. Triclosan water solution was considered as the most toxic. The lowest toxic effect was observed for Imidacloprid and Octyl-methoxycinnamate solutions. The exposure of Benzocaine, Octyl-methoxycinnamate and Triclosan water solutions to UV light led to an increase of their toxicity. An inverse relationship was observed for Imidacloprid and 17α-Ethinylestradiol solutions.

Decomposition of Contaminants of Emerging Concern in Advanced Oxidation Processes

“…Particular attention should be paid to compounds which are considered to be hardly biodegradable and are most commonly identified in water streams, such as pharmaceuticals (carbamazepine, benzocaine, diclofenac, ibuprofen), dyes (acridine), UV blockers (dioxybenzone), pesticides (triallat, triclosan, oxadiazon), hormones (β-estradiol, 17α-ethinylestradiol, mestranol, progesterone), and food additives (butylated hydroxytoluene). Their negative impact on the environment was also investigated in several articles in the last decade [3,4].…”