ArticleProceedings of the National Academy of Sciences of the United States of America2018
Detecting and explaining why aquifers occasionally become degraded near hydraulically fractured shale gas wells.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Using Geoscientific Analysis and Community Engagement to Analyze Exposures to Potential Groundwater Contamination Related to Hydrocarbon Extraction in Southwestern Pennsylvania.Research report (Health Effects Institute) · 2025Article
- Wastewaters Coproduced with Shale Gas Drive Slight Regional Salinization of Groundwater.Environmental science & technology · 2024Article
- Social Vulnerability and Groundwater Vulnerability to Contamination From Unconventional Hydrocarbon Extraction in the Appalachian Basin.GeoHealth · 2023Article
- Composition and Origin of Surface Casing Fluids in a Major US Oil- and Gas-Producing Region.Environmental science & technology · 2022Article
- Natural and Anthropogenic Processes Affecting Domestic Groundwater Quality within the Northwestern Appalachian Basin.Environmental science & technology · 2022Article
- Geochemical Evidence of Potential Groundwater Contamination with Human Health Risks Where Hydraulic Fracturing Overlaps with Extensive Legacy Hydrocarbon Extraction.Environmental science & technology · 2022Article
- Measurements of Atmospheric Methane Emissions from Stray Gas Migration: A Case Study from the Marcellus Shale.ACS earth & space chemistry · 2022Article
- Assessing Unconventional Oil and Gas Exposure in the Appalachian Basin: Comparison of Exposure Surrogates and Residential Drinking Water Measurements.Environmental science & technology · 2022Article
- Assessing changes in groundwater chemistry in landscapes with more than 100 years of oil and gas development.Environmental science. Processes & impacts · 2019Article
- Moving beyond forensic monitoring to understand and manage impacts of hydraulic fracturing for oil and gas development.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Extensive development of shale gas has generated some concerns about environmental impacts such as the migration of natural gas into water resources. We studied high gas concentrations in waters at a site near Marcellus Shale gas wells to determine the geological explanations and geochemical implications. The local geology may explain why methane has discharged for 7 years into groundwater, a stream, and the atmosphere. Gas may migrate easily near the gas wells in this location where the Marcellus Shale dips significantly, is shallow (∼1 km), and is more fractured. Methane and ethane concentrations in local water wells increased after gas development compared with predrilling concentrations reported in the region. Noble gas and isotopic evidence are consistent with the upward migration of gas from the Marcellus Formation in a free-gas phase. This upflow results in microbially mediated oxidation near the surface. Iron concentrations also increased following the increase of natural gas concentrations in domestic water wells. After several months, both iron and SO
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