title: Dissipation of sulfamethoxazole and trimethoprim antibiotics from manure-amended soils.
abstract: In this study, the dissipation of two antibiotics, sulfamethoxazole (SMX) and trimethoprim (TRM), in three soils under both aerobic and anaerobic conditions are evaluated. Under aerobic conditions, SMX dissipated rapidly through biodegradation but TRM was more persistent. Within the first 20 days in biologically active soils, >50% of the SMX was lost from the clay loam and loamy sand soils, and >80% loss was noted in the loam soil. Anaerobic dissipation of both compounds was more rapid than aerobic dissipation. The addition of manure to the soil only slightly increased the initial dissipation rate of the two compounds. Little effect was found on glucose mineralisation in soil following the addition of SMX and TRM, even as mixtures at high concentrations.
authors.affiliation: School of Environmental Science and Engineering, Donghua University, Shanghai, China.
authors.forename: Yang
authors.initials: Y
authors.lastname: Wu
authors.forename: Mike
authors.initials: M
authors.lastname: Williams
authors.forename: Lester
authors.initials: L
authors.lastname: Smith
authors.forename: Donghui
authors.initials: D
authors.lastname: Chen
authors.forename: Rai
authors.initials: R
authors.lastname: Kookana
mesh_terms: D000900:Anti-Bacterial Agents / Q000819:agonists / Q000378:metabolism; D001419:Bacteria / Q000378:metabolism; D008372:Manure / Q000032:analysis*; D012987:Soil / Q000032:analysis*; D012988:Soil Microbiology; D012989:Soil Pollutants / Q000032:analysis* / Q000378:metabolism; D013420:Sulfamethoxazole / Q000032:analysis* / Q000378:metabolism; D014295:Trimethoprim / Q000032:analysis* / Q000378:metabolism
chemical_list: D000900:Anti-Bacterial Agents; D008372:Manure; D012987:Soil; D012989:Soil Pollutants; D014295:Trimethoprim; D013420:Sulfamethoxazole