Journal
SCIENCE OF THE TOTAL ENVIRONMENT
Volume 550, Issue -, Pages 431-438Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2016.01.131
Keywords
Environmental contamination; Shale gas development; Toxicology; Aquatic toxicology; TIVA-TLV; Ecotox TRV; Chemical emission; Chemical concentrations; Environmental risks
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Shale gas development potentially contaminates both air and water compartments. To assist in governmental decision-making on future explorations, we reviewed scattered information on activities, emissions and concentrations related to shale gas development. We compared concentrations from monitoring programmes to quality standards as a first indication of environmental risks. Emissions could not be estimated accurately because of incomparable and insufficient data. Air and water concentrations range widely. Poor wastewater treatment posed the highest risk with concentrations exceeding both Natural Background Values (NBVs) by a factor 1000-10,000 and Lowest Quality Standards (1125s) by a factor 10-100. Concentrations of salts, metals, volatile organic compounds (VOCs) and hydrocarbons exceeded aquatic ecotoxicological water standards. Future research must focus on measuring aerial and aquatic emissions of toxic chemicals, generalisation of experimental setups and measurement technics and further human and ecological risk assessment. (C) 2016 Elsevier B.V. All rights reserved.
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