Preliminary studies on occurrence of monensin antibiotic in Bosque River Watershed  

作　　者：Sudarshan Kurwadkar Victoria Sicking Barry Lambert Anne McFarland Forrest Mitchell 

机构地区：[1]Environmental Engineering,Department of Engineering and Physics,Box T-0390,Tarleton State University,Stephenville,TX 76402,USA [2]Environmental Engineering Program,Department of Engineering and Physics,Tarleton State University,Stephenville,TX 76402,USA [3]Department of Animal Sciences,Box T-0070,Tarleton State University,Stephenville,TX 76402,USA [4]Texas Institute for Applied Environmental Research,Box T-0410,Tarleton State University,Stephenville,TX 76402,USA [5]Texas A&M AgriLife Research,1229 N.US Hwy 281,Stephenville,TX 76401,USA

出　　处：《Journal of Environmental Sciences》2013年第2期268-273,共6页环境科学学报（英文版）

摘　　要：Water quality impact due to excessive nutrients has been extensively studied. In recent years, however, micro-pollutants such as pharmaceuticals and hormonal products used in animal agriculture have added an additional impact to overall water quality. Pharmaceuticals used in the poultry, swine, beef, and dairy industries have been detected in various environmental matrices such as, soil, groundwater and surface water. In this study, 26 surface water samples were collected throughout the Bosque River Watershed （BRW） with samples representing a range of land use conditions and locations of major dairy operations. Samples were analyzed using commercially available Enzyme-Linked Immunosorbent Assay test. Of the 26 samples, three samples consistently tested positive for monensin antibiotic with concentration ranging from 0.30 to 3.41 μg/L. These three samples were collected from sites that received varying amount of agriculture wastes （11.7% to 31.3%） and located downstream from sites associated with moderate levels of animal agriculture. The preliminary results suggest that there is a potential for monensin occurrence in the BRW, although initial findings indicate only very low levels.Water quality impact due to excessive nutrients has been extensively studied. In recent years, however, micro-pollutants such as pharmaceuticals and hormonal products used in animal agriculture have added an additional impact to overall water quality. Pharmaceuticals used in the poultry, swine, beef, and dairy industries have been detected in various environmental matrices such as, soil, groundwater and surface water. In this study, 26 surface water samples were collected throughout the Bosque River Watershed （BRW） with samples representing a range of land use conditions and locations of major dairy operations. Samples were analyzed using commercially available Enzyme-Linked Immunosorbent Assay test. Of the 26 samples, three samples consistently tested positive for monensin antibiotic with concentration ranging from 0.30 to 3.41 μg/L. These three samples were collected from sites that received varying amount of agriculture wastes （11.7% to 31.3%） and located downstream from sites associated with moderate levels of animal agriculture. The preliminary results suggest that there is a potential for monensin occurrence in the BRW, although initial findings indicate only very low levels.

关 键 词：ELISA ionophore monensin antibiotic dairy waste emerging pollutants pharmaceuticals 

分 类 号：X13[环境科学与工程—环境科学]