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Code for analyses presented in: Fork, M.L., J. Fick, A.J. Reisinger, and E.J. Rosi. "Dosing the coast: Leaking sewage infrastructure delivers large annual loads and dynamic mixtures of pharmaceuticals to urban rivers." In press at Environmental Science and Technology. Two markdown files contains code to pre-process other data and to analyze grab samples from BES streams collected weekly from 2 Nov 2017 through 15 Nov 2018 and analyzed for 92 target pharmaceuticals. Data and methods are available via EDI at https://doi.org/10.6073/pasta/36453abc14ce8d6a33711231fdee9792. Briefly, the analyses here: A) examine spatial and temporal variability in pharmaceutical detections and concentrations among 7 BES watersheds, and B) combine measured concentrations at the watershed outlet (GFCP) with USGS streamflow data to estimate annual loads of pharmaceuticals by resampling or by interpolating concentrations over the discharge record.
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Baltimore Ecosystem Study: Pharmaceutical concentrations for core sites in Gwynns Falls and Baisman Run
Water samples from one year of weekly samples at the Baltimore Ecosystem Study core stream sites were analyzed to measure concentrations of 92 different pharmaceutical concentrations. Note that none of the sites sampled in this dataset receive effluent from wastewater treatment plants (a common source of pharmaceutical contamination). In Baisman Run, sewage is treated by onsite systems, while in the Gwynns Falls watershed, sewage is piped across the watershed boundary and treated elsewhere.
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- Award ID(s):
- 1855277
- PAR ID:
- 10474679
- Publisher / Repository:
- Environmental Data Initiative
- Date Published:
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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