Riverbank filtration potential of pharmaceuticals in a wastewater-impacted stream
Environmental Pollution
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Abstract
Pharmaceutical contamination of shallow groundwater is a substantial concern in effluent-dominated streams, due to high aqueous mobility, designed bioactivity, and effluent-driven hydraulic gradients. In October and December 2012, effluent contributed approximately 99% and 71%, respectively, to downstream flow in Fourmile Creek, Iowa, USA. Strong hydrologic connectivity was observed between surface-water and shallow-groundwater. Carbamazepine, sulfamethoxazole, and immunologically-related compounds were detected in groundwater at greater than 0.02 μg L−1 at distances up to 6 m from the stream bank. Direct aqueous-injection HPLC-MS/MS revealed 43% and 55% of 110 total pharmaceutical analytes in surface-water samples in October and December, respectively, with 16% and 6%, respectively, detected in groundwater approximately 20 m from the stream bank. The results demonstrate the importance of effluent discharge as a driver of local hydrologic conditions in an effluent-impacted stream and thus as a fundamental control on surface-water to groundwater transport of effluent-derived pharmaceutical contaminants.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Riverbank filtration potential of pharmaceuticals in a wastewater-impacted stream |
| Series title | Environmental Pollution |
| DOI | 10.1016/j.envpol.2014.06.028 |
| Volume | 193 |
| Year Published | 2014 |
| Language | English |
| Publisher | Elsevier |
| Contributing office(s) | Toxic Substances Hydrology Program, South Atlantic Water Science Center |
| Description | 8 p. |
| First page | 173 |
| Last page | 180 |
| Country | United States |
| State | Iowa |
| City | Ankeny |
| Other Geospatial | Fourmile Creek |
| Google Analytic Metrics | Metrics page |