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Riverbank filtration potential of pharmaceuticals in a wastewater-impacted stream

Environmental Pollution

By:
, , , , , , , , and
DOI: 10.1016/j.envpol.2014.06.028

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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.

Geospatial Extents

Additional Publication Details

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):
South Carolina Water Science Center
Description:
8 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Environmental Pollution
First page:
173
Last page:
180
Number of Pages:
8
Country:
United States
State:
Iowa
City:
Ankeny
Other Geospatial:
Fourmile Creek