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Estrogen equivalents of surface water in Pennsylvania, 2012-2017


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Iwanowicz, L.R., Raines, C.D., Dougherty, J., Sanders, L., Lookenbill,M., and Williams, A., 2021, Estrogen equivalents of surface water in Pennsylvania, 2012-2017: U.S. Geological Survey data release,


The data were gathered as part of a long-term, seasonal assessment of estrogenicity in selected locations within Pennsylvania from 2012-2017. Data were collected over this time frame to determine seasonal and annual changes in surface water estrogenicity.Estrogen is reported as estrogen equivalents (EEQ) as determined by a bioluminescent yeast estrogen screen. A total of 193 grab water samples were collected during this time of which 41% had EEQ above the limit of detection. The maximum estrogen equivalents (EEQ) measured was 5.44 ng EEQ/ L, while the median concentration was 0.44 ng/L. POCIS samplers were deployed at a number of sites to determine time-weighted estrogenicity between 2014 and 2017. A total of 150 POCIS samples were [...]


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Data presented includes estrogenicity in surface water samples collected throughout the state of Pennsylvania, 2013-2017.



  • Eastern Ecological Science Center
  • USGS Data Release Products



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DOI doi:10.5066/P9PQA90O

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