摘要：The concentrations of 26 antibiotics in seawater and surface sediments from typical marine aquaculture ponds in Taizhou, China, a coastal region of the East China Sea, were investigated. The sorption coefficients (kd,s) in the sediment corresponding to their seawater, sources, and ecological risks were analyzed. The results showed that one antibiotic were detected at least once in seawater at concentrations up to 21.76 ng/L, and that one kind of antibiotics were detected at least once in sediment at concentrations up to 21.93 ng/g. The kd,s values revealed that sulfathiazole, ofloxacin and enrofloxacin presented higher sorption capacities than the other antibiotics. Pollution sources identified by principal component analysis included domestic effluents and discharges from aquaculture breeding bases. The risk assessments suggested that the investigated antibiotic compounds pose a low potential risk, except for en- rofloxacin and sulfadiazine, which were found to pose a moderate risk in some aquaculture environments.
