Water quality assessment downstream of oil and gas produced water discharges intended for beneficial reuse in arid regions

McLaughlin, Molly C.; Borch, Thomas; McDevitt, Bonnie; Warner, Nathaniel R.; Blotevogel, Jens

doi:10.1016/j.scitotenv.2020.136607

Cited by 57 publications

(52 citation statements)

References 39 publications

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“…Samples were stored on ice in the field and refrigerated at 4 °C in the lab until analysis. Additional details on sampling locations, sampling methods and quality control can be found in the companion study (McLaughlin et al, 2020).…”

Section: Site Samplingmentioning

confidence: 99%

“…Chemical concentrations were equivalent to concentrations measured at the NPDES PW discharge in 2016. Chemical analysis of the water samples was conducted in a companion study (McLaughlin et al, 2020) and data is provided in the Supporting Information (Tables S3 and S4). During the 2016 sampling event, a duplicate sample was collected at the discharge, so the average value between the two samples was used to create the mixture of known composition.…”

Section: Toxic Mixtures Of Known Composition-toxic Mixtures Of Knownmentioning

confidence: 99%

“…In areas west of the 98th meridian, however, the exemption in 40 CFR § 435 Subpart E allows release of PW for livestock watering, irrigation and other agricultural purposes if it is "of good enough quality" (see map in Fig. S1; McLaughlin et al, 2020). The only federally defined effluent limit for these permits pertains to oil and grease (<35 mg/L).…”

Section: Introductionmentioning

confidence: 99%

“…As a first step towards this goal, in a companion study, a chemical analysis was conducted on water samples collected from a NPDES PW release point and subsequent sites downstream (McLaughlin et al, 2020). This site is located in Wyoming, USA, an arid state west of the 98th meridian where water scarcity is a concern (Fig.…”

Section: Introductionmentioning

confidence: 99%

“…Chemical analysis alone, however, is not sufficient to provide an accurate environmental risk assessment of this discharge. Firstly, toxicological information and regulatory health thresholds for downstream users are unavailable or unknown for many of the detected chemicals (Colborn et al, 2011;Elliott et al, 2016;McLaughlin et al, 2020). Secondly, many analytes may go undetected because they are not screened for or their concentrations are below instrumental detection limits (Oetjen et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

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Mutagenicity assessment downstream of oil and gas produced water discharges intended for agricultural beneficial reuse

McLaughlin

Blotevogel

Watson

et al. 2020

Science of The Total Environment

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Produced water is the largest waste stream associated with oil and gas operations. This complex fluid contains petroleum hydrocarbons, heavy metals, salts, naturally occurring radioactive materials and any remaining chemical additives. In the United States, west of the 98th meridian, the federal National Pollutant Discharge Elimination System (NPDES) exemption allows release of produced water for agricultural beneficial reuse. The goal of this study was to quantify mutagenicity of a produced water NPDES release and discharge stream. We used four mutation assays in budding yeast cells that provide rate estimates for copy number variation (CNV) duplications and deletions, as well as forward and reversion point mutations. Higher mutation rates were observed at the discharge and decreased with distance downstream, which correlated with the concentrations of known carcinogens detected in the stream (e.g., benzene, radium), described in a companion study. Mutation rate increases were most prominent for CNV duplications and were *

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Section: Site Samplingmentioning

confidence: 99%

Section: Toxic Mixtures Of Known Composition-toxic Mixtures Of Knownmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Mutagenicity assessment downstream of oil and gas produced water discharges intended for agricultural beneficial reuse

McLaughlin

Blotevogel

Watson

et al. 2020

Science of The Total Environment

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Mixture Toxicity of Three Unconventional Gas Fracking Chemicals, Barium, O‐Cresol, and Sodium Chloride, to the Freshwater Shrimp Paratya australiensis

Willems

Kumar

Nugegoda

2023

Enviro Toxic and Chemistry

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The 96-h acute toxicity of barium (Ba 2+ ), o-cresol, and sodium chloride (NaCl) to Paratya australiensis was assessed in single, binary, and ternary combinations in addition to three biochemical assays: glutathione S-transferase, acetylcholinesterase, and sodium-potassium adenosine triphosphatase. The 96-h lethal concentrations that expressed 50% mortality (LC50) in the single-toxicant exposures were Ba 2+ = 23.4 mg/L, o-cresol = 12.2 mg/L, and NaCl = 4198 mg/L. Mortality from ocresol exposure occurred between 11 and 22 mg/L, whereas Ba 2+ was more gradual across 10-105 mg/L, and most of the NaCl mortality occurred between 2050 and 4100 mg/L. Toxic units were used to assess the binary and ternary interactions of the toxicants. A more than additive effect was observed for most combinations in the binary chemical exposures, with the ternary combinations yielding highly synergistic interactions. Greater synergism was observed with the 96-h LC50 of o-cresol in combination with the three concentrations of NaCl (1025, 2050, and 3075 mg/L) compared with Ba 2+ , with toxic units of 0.38, 0.48, and 0.10 (o-cresol) and 0.71, 0.67, and 0.50 (Ba 2+ ). No notable enzyme activity trends were observed in the enzyme biomarker responses from both individual and mixture exposures. Although acute single-species toxicity tests tend to underestimate the effects of Ba 2+ , o-cresol, and NaCl on populations, communities, and ecosystems in seminatural (e.g., mesocosms) and natural systems, there are currently no published acute toxicity data available for P. australiensis and the three toxicants used in the present study. The present study shows that chemicals with different toxicity mechanisms can potentially lead to more synergistic responses.

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Advanced oxidation processes for the degradation of dissolved organics in produced water: A review of process performance, degradation kinetics and pathway

Ganiyu

Sable

El-Din

2022

Chemical Engineering Journal

176

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Water quality assessment downstream of oil and gas produced water discharges intended for beneficial reuse in arid regions

Cited by 57 publications

References 39 publications

Mutagenicity assessment downstream of oil and gas produced water discharges intended for agricultural beneficial reuse

Mutagenicity assessment downstream of oil and gas produced water discharges intended for agricultural beneficial reuse

Mixture Toxicity of Three Unconventional Gas Fracking Chemicals, Barium, O‐Cresol, and Sodium Chloride, to the Freshwater Shrimp Paratya australiensis

Advanced oxidation processes for the degradation of dissolved organics in produced water: A review of process performance, degradation kinetics and pathway

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