Search Results - "Warner, Nathaniel R"
-
1
Noble gases identify the mechanisms of fugitive gas contamination in drinking-water wells overlying the Marcellus and Barnett Shales
Published in Proceedings of the National Academy of Sciences - PNAS (30-09-2014)“…Horizontal drilling and hydraulic fracturing have enhanced energy production but raised concerns about drinking-water contamination and other environmental…”
Get full text
Journal Article -
2
Impacts of Shale Gas Wastewater Disposal on Water Quality in Western Pennsylvania
Published in Environmental science & technology (15-10-2013)“…The safe disposal of liquid wastes associated with oil and gas production in the United States is a major challenge given their large volumes and typically…”
Get full text
Journal Article -
3
Methane contamination of drinking water accompanying gas-well drilling and hydraulic fracturing
Published in Proceedings of the National Academy of Sciences - PNAS (17-05-2011)“…Directional drilling and hydraulic-fracturing technologies are dramatically increasing natural-gas extraction. In aquifers overlying the Marcellus and Utica…”
Get full text
Journal Article -
4
Increased stray gas abundance in a subset of drinking water wells near Marcellus shale gas extraction
Published in Proceedings of the National Academy of Sciences - PNAS (09-07-2013)“…Horizontal drilling and hydraulic fracturing are transforming energy production, but their potential environmental effects remain controversial. We analyzed…”
Get full text
Journal Article -
5
Geochemical evidence for possible natural migration of Marcellus Formation brine to shallow aquifers in Pennsylvania
Published in Proceedings of the National Academy of Sciences - PNAS (24-07-2012)“…The debate surrounding the safety of shale gas development in the Appalachian Basin has generated increased awareness of drinking water quality in rural…”
Get full text
Journal Article -
6
Elevated levels of diesel range organic compounds in groundwater near Marcellus gas operations are derived from surface activities
Published in Proceedings of the National Academy of Sciences - PNAS (27-10-2015)“…Hundreds of organic chemicals are used during natural gas extraction via high-volume hydraulic fracturing (HVHF). However, it is unclear whether these…”
Get full text
Journal Article -
7
Geochemical and isotopic variations in shallow groundwater in areas of the Fayetteville Shale development, north-central Arkansas
Published in Applied geochemistry (01-08-2013)“…[Display omitted] •No evidence for shallow groundwater contamination in Fayetteville Shale, Arkansas.•Methane in groundwater is low and likely associated with…”
Get full text
Journal Article -
8
Occurrence and mobilization of radium in fresh to saline coastal groundwater inferred from geochemical and isotopic tracers (Sr, S, O, H, Ra, Rn)
Published in Applied geochemistry (01-11-2013)“…•The radium (Ra) isotope association with groundwater salinity is locally variable.•Water from 2 coastal aquifers exhibits at least one apparent Ra removal…”
Get full text
Journal Article -
9
Radioactivity from oil and gas produced water accumulated in freshwater mussels
Published in The Science of the total environment (01-06-2024)“…Legacy disposal of oil and gas produced water (OGPW) to surface water has led to radium contamination in streambed sediment creating a long-term radium source…”
Get full text
Journal Article -
10
Water quality assessment downstream of oil and gas produced water discharges intended for beneficial reuse in arid regions
Published in The Science of the total environment (15-04-2020)“…Produced water (PW) is the largest waste stream associated with oil and gas extraction and contains organics, salts, metals and radioactive materials. In the…”
Get full text
Journal Article -
11
Drinking water quality in Nepal's Kathmandu Valley: a survey and assessment of selected controlling site characteristics
Published in Hydrogeology journal (01-03-2008)“…Water was sampled from over 100 sources in Nepal's Kathmandu Valley, including municipal taps, dug wells, shallow-aquifer tube wells, deep-aquifer tube wells,…”
Get full text
Journal Article -
12
Sources of Radium Accumulation in Stream Sediments near Disposal Sites in Pennsylvania: Implications for Disposal of Conventional Oil and Gas Wastewater
Published in Environmental science & technology (06-02-2018)“…In Pennsylvania, Appalachian oil and gas wastewaters (OGW) are permitted for release to surface waters after some treatment by centralized waste treatment…”
Get full text
Journal Article -
13
Iodide, Bromide, and Ammonium in Hydraulic Fracturing and Oil and Gas Wastewaters: Environmental Implications
Published in Environmental science & technology (03-02-2015)“…The expansion of unconventional shale gas and hydraulic fracturing has increased the volume of the oil and gas wastewater (OGW) generated in the U.S. Here we…”
Get full text
Journal Article -
14
Radium and Barium Removal through Blending Hydraulic Fracturing Fluids with Acid Mine Drainage
Published in Environmental science & technology (21-01-2014)“…Wastewaters generated during hydraulic fracturing of the Marcellus Shale typically contain high concentrations of salts, naturally occurring radioactive…”
Get full text
Journal Article -
15
The geochemistry of naturally occurring methane and saline groundwater in an area of unconventional shale gas development
Published in Geochimica et cosmochimica acta (01-07-2017)“…Since naturally occurring methane and saline groundwater are nearly ubiquitous in many sedimentary basins, delineating the effects of anthropogenic…”
Get full text
Journal Article -
16
Toxicity and chemical composition of commercial road palliatives versus oil and gas produced waters
Published in Environmental pollution (1987) (01-10-2023)“…Across the United States, road palliatives are applied to roads for maintenance operations that improve road safety. In the winter, solid rock salts and brine…”
Get full text
Journal Article -
17
Accumulation of Marcellus Formation Oil and Gas Wastewater Metals in Freshwater Mussel Shells
Published in Environmental science & technology (18-09-2018)“…For several decades, high-salinity water brought to the surface during oil and gas (O&G) production has been treated and discharged to waterways under National…”
Get full text
Journal Article -
18
Maximum Removal Efficiency of Barium, Strontium, Radium, and Sulfate with Optimum AMD-Marcellus Flowback Mixing Ratios for Beneficial Use in the Northern Appalachian Basin
Published in Environmental science & technology (21-04-2020)“…Mixing of acid mine drainage (AMD) and hydraulic fracturing flowback fluids (HFFF) could represent an efficient management practice to simultaneously manage…”
Get full text
Journal Article -
19
Geochemical evidence for fugitive gas contamination and associated water quality changes in drinking-water wells from Parker County, Texas
Published in The Science of the total environment (01-08-2021)“…Extensive development of horizontal drilling and hydraulic fracturing enhanced energy production but raised concerns about drinking-water quality in areas of…”
Get full text
Journal Article -
20
Oil and gas produced waters fail to meet beneficial reuse recommendations for use as dust suppressants
Published in The Science of the total environment (01-04-2024)“…Produced water from conventional oil and gas wells (O&G PW) is beneficially reused as an inexpensive alternative to commercial dust suppressants which minimize…”
Get full text
Journal Article