Shale gas development impacts on surface water quality in Pennsylvania

Concern has been raised in the scientific literature about the environmental implications of extracting natural gas from deep shale formations, and published studies suggest that shale gas development may affect local g...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences of the United States of America. - National Academy of Sciences of the United States of America. - 110(2013), 13, Seite 4962-4967
1. Verfasser:	Olmstead, Sheila M. (VerfasserIn)
Weitere Verfasser:	Muehlenbachs, Lucija A., Shih, Jhih-Shyang, Chu, Ziyan, Krupnick, Alan J.
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2013
Zugriff auf das übergeordnete Werk:	Proceedings of the National Academy of Sciences of the United States of America
Schlagworte:	Physical sciences Applied sciences Business Environmental studies Biological sciences


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245	1	0	\|a Shale gas development impacts on surface water quality in Pennsylvania
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520			\|a Concern has been raised in the scientific literature about the environmental implications of extracting natural gas from deep shale formations, and published studies suggest that shale gas development may affect local groundwater quality. The potential for surface water quality degradation has been discussed in prior work, although no empirical analysis of this issue has been published. The potential for large-scale surface water quality degradation has affected regulatory approaches to shale gas development in some US states, despite the dearth of evidence. This paper conducts a large-scale examination of the extent to which shale gas development activities affect surface water quality. Focusing on the Marcellus Shale in Pennsylvania, we estimate the effect of shale gas wells and the release of treated shale gas waste by permitted treatment facilities on observed downstream concentrations of chloride (Cl⁻) and total suspended solids (TSS), controlling for other factors. Results suggest that (i) the treatment of shale gas waste by treatment plants in a watershed raises downstream Cl⁻ concentrations but not TSS concentrations, and (ii) the presence of shale gas wells in a watershed raises downstream TSS concentrations but not Cl⁻ concentrations. These results can inform future voluntary measures taken by shale gas operators and policy approaches taken by regulators to protect surface water quality as the scale of this economically important activity increases.
540			\|a copyright © 1993-2008 National Academy of Sciences of the United States of America
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geomorphology \|x Rocks \|x Sedimentary rocks \|x Clastic sedimentary rocks \|x Mudrocks \|x Shales
650		4	\|a Applied sciences \|x Engineering \|x Civil engineering \|x Sanitary engineering \|x Environmental engineering \|x Waste management \|x Waste treatment
650		4	\|a Applied sciences \|x Materials science \|x Materials \|x Waste materials \|x Waste byproducts \|x Waste gases
650		4	\|a Physical sciences \|x Earth sciences \|x Geography \|x Geomorphology \|x Geologic provinces \|x Structural basins \|x Watersheds
650		4	\|a Physical sciences \|x Earth sciences \|x Hydrology \|x Limnology \|x Surface water
650		4	\|a Business \|x Industry \|x Industrial sectors \|x Extractive industries \|x Mining industries \|x Natural gas production \|x Gas fields \|x Gas wells
650		4	\|a Environmental studies \|x Environmental quality \|x Water quality
650		4	\|a Applied sciences \|x Engineering \|x Transportation \|x Commercial transportation \|x Freight transport \|x Shipping \|x Shipments
650		4	\|a Biological sciences \|x Ecology \|x Applied ecology \|x Environmental management \|x Natural resource management \|x Water management \|x Water distribution \|x Water supply systems \|x Water wells
650		4	\|a Applied sciences \|x Engineering \|x Civil engineering \|x Sanitary engineering \|x Environmental engineering \|x Waste management \|x Waste treatment \|x Wastewater treatment
655		4	\|a research-article
700	1		\|a Muehlenbachs, Lucija A. \|e verfasserin \|4 aut
700	1		\|a Shih, Jhih-Shyang \|e verfasserin \|4 aut
700	1		\|a Chu, Ziyan \|e verfasserin \|4 aut
700	1		\|a Krupnick, Alan J. \|e verfasserin \|4 aut
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773	1	8	\|g volume:110 \|g year:2013 \|g number:13 \|g pages:4962-4967
856	4	0	\|u https://www.jstor.org/stable/42583393 \|3 Volltext
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