Photochemical Fate of Sulfa Drugs in the Aquatic Environment:  Sulfa Drugs Containing Five-Membered Heterocyclic Groups

• Published in: Environmental science & technology Vol. 38; no. 14; pp. 3933 - 3940
• Main Authors: Boreen, Anne L, Arnold, William A, McNeill, Kristopher
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 15.07.2004
• Subjects: Applied sciences; Aquatic ecosystems; Aqueous solutions; Biological and physicochemical phenomena; Chemicals; Chromatography, High Pressure Liquid; Drugs; Earth sciences; Earth, ocean, space; Engineering and environment geology. Geothermics; Environment; Exact sciences and technology; Fresh Water - chemistry; Freshwater; Mass Spectrometry; Models, Chemical; Natural water pollution; Photochemistry; Photodegradation; Pollution; Pollution, environment geology; Sulfanilamides - analysis; Sulfanilamides - radiation effects; Ultraviolet Rays; Water Pollutants, Chemical - analysis; Water Pollutants, Chemical - radiation effects; Water treatment and pollution; Minnesota; United States; North America; America; USA, Minnesota, Josephine L; North America, Superior L; Drug; Sulfanilamide derivatives; Pollutant behavior; Quantum yield; Chemical reaction kinetics; Reaction mechanism; Hydroxyl radicals; Protonation; Oxidation; Water pollution; Flash photolysis; Solar radiation; Photooxidation; Photochemical degradation

The photochemical fate of five sulfa drugs with varying five-membered heterocyclic substituents (sulfamethoxazole, sulfisoxazole, sulfamethizole, sulfathiazole, and sulfamoxole) was investigated in aqueous solution. The rate of direct photolysis of these compounds is dependent upon the identity of t...