Occurrence and distribution of pharmaceuticals in surface water and sediment of Buffalo and Sundays River estuaries, South Africa and their ecological risk assessment

作     者：Chinemerem Ruth Ohoro Abiodun Olagoke Adeniji Lucy Semerjian Omobola Oluranti Okoh Anthony Ifeanyi Okoh 

作者机构：SAMRC Microbial Water Quality Monitoring CentreUniversity of Fort HareAlice5700South Africa Department of Pure and Applied ChemistryUniversity of Fort HareAlice5700South Africa Applied and Environmental Microbiology Research GroupDepartment of Biochemistry and MicrobiologyUniversity of Fort HareAlice5700South Africa Department of Chemistry and Chemical TechnologyNational University of LesothoP.O.180RomaLesotho Department of Environmental Health SciencesCollege of Health SciencesUniversity of SharjahSharjahUnited Arab Emirates 

出 版 物：《Emerging Contaminants》 (新兴污染物（英文）)

年 卷 期：2021年第7卷第1期

页      面：187-195页

学科分类：08[工学] 0815[工学-水利工程] 

基　　金：funded by the South African Medical Research Council(grant number UFH/SAMRC/P790) 

主　　题：Pharmaceuticals Estuaries Physicochemical parameters Risk assessment Contamination source Correlation 

摘      要：This study investigated the presence of pharmaceuticals in the water and sediment of Buffalo and Sundays River Estuary,South *** for water and sediment samples was achieved with solidphase extraction and ultrasonic extraction methods,*** of the target analytes was done with *** pH of surface water in all the sampling sites(8.18-10.1)were above the WHO guideline(6.5).A good correlation was observed between the concentrations of analytes with organic matter and organic *** showed that carbamazepine exhibited the highest concentration(8.75±1.45 mg/kg)of all the pharmaceuticals,while trimethoprim has the highest detection frequency with the highest concentration of 1.62±0.83 mg/kg in the sediment *** was below the detection limit in both *** risk quotients revealed that carbamazepine and trimethoprim could be of potential risk,while caffeine may pose a very low risk to the aquatic organisms *** monitoring of the runoff entering Buffalo Estuary is required,being the point of discharge of Buffalo River to the Indian ***,the domestic waste discharge from residences in the surroundings of Sundays Estuary should be monitored.