Groundwaters in Northeastern Pennsylvania near intense hydraulic fracturing activities exhibit few organic chemical impacts
Autor: | Boya Xiong, Mario A. Soriano, Kristina M. Gutchess, Nicholas Hoffman, Cassandra J. Clark, Helen G. Siegel, Glen Andrew D De Vera, Yunpo Li, Rebecca J. Brenneis, Austin J. Cox, Emma C. Ryan, Andrew J. Sumner, Nicole C. Deziel, James E. Saiers, Desiree L. Plata |
---|---|
Rok vydání: | 2022 |
Předmět: | |
Zdroj: | Environmental Science: Processes & Impacts. 24:252-264 |
ISSN: | 2050-7895 2050-7887 |
DOI: | 10.1039/d1em00124h |
Popis: | Horizontal drilling with hydraulic fracturing (HDHF) relies on the use of anthropogenic organic chemicals in proximity to residential areas, raising concern for groundwater contamination. Here, we extensively characterized organic contaminants in 94 domestic groundwater sites in Northeastern Pennsylvania after ten years of activity in the region. All analyzed volatile and semi-volatile compounds were below recommended United States Environmental Protection Agency maximum contaminant levels, and integrated concentrations across two volatility ranges, gasoline range organic compounds (GRO) and diesel range organic compounds (DRO), were low (0.13 ± 0.06 to 2.2 ± 0.7 ppb and 5.2-101.6 ppb, respectively). Following dozens of correlation analyses with distance-to-well metrics and inter-chemical indicator correlations, no statistically significant correlations were found except: (1) GRO levels were higher within 2 km of violations and (2) correlation between DRO and a few inorganic species ( |
Databáze: | OpenAIRE |
Externí odkaz: |