Late season pharmaceutical fate in wetland mesocosms with and without phosphorous addition
| Autor: | Mark L. Hanson, Jules C. Carlson, Jonathan K. Challis, Julie C. Anderson, Jennifer E. Low, Charles S. Wong, Pascal Cardinal |
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| Rok vydání: | 2015 |
| Předmět: |
Naproxen
Health Toxicology and Mutagenesis 0208 environmental biotechnology Amendment 02 engineering and technology 010501 environmental sciences Sulfapyridine 01 natural sciences Mesocosm chemistry.chemical_compound medicine Environmental Chemistry Ecotoxicology 0105 earth and related environmental sciences Photolysis Chemistry Environmental engineering Clofibric acid Phosphorus General Medicine Carbamazepine Pollution 020801 environmental engineering Biodegradation Environmental Wastewater Pharmaceutical Preparations Environmental chemistry Wetlands Seasons Water Pollutants Chemical medicine.drug Half-Life |
| Zdroj: | Environmental science and pollution research international. 23(22) |
| ISSN: | 1614-7499 |
| Popis: | The fate of six human-use drugs was assessed and predicted in mesocosms designed to mimic shallow constructed wetlands during the onset of fall and senescence. Mesocosms were monitored for 28 days after the addition of carbamazepine, clofibric acid, fluoxetine and naproxen (nominal initial concentrations of 5 μg/L each), sulfamethoxazole, and sulfapyridine (nominal initial concentrations of 150 μg/L each), with and without phosphorous (P) addition at 1.6 mg/L. We hypothesized that addition of P would stimulate primary productivity and enhance removal of pharmaceuticals from the water column. Carbamazepine, clofibric acid, fluoxetine, and naproxen had half-lives of 8.7, 11, 1.5, and 2.5, and 8.6, 11.0, 1.4, and 2.5 days in treatments with and without P amendment, respectively. Sulfamethoxazole and sulfapyridine had half-lives of 17 and 4.9 days in mesocosms with P amendment and 17 and 4.7 days without amendment. A concurrent pulse of P with pharmaceuticals did not significantly enhance the removal of these compounds. Predicted half-lives from modeling efforts were consistent with observed values, with photolysis the greatest contributor to chemical attenuation. |
| Databáze: | OpenAIRE |
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