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Lecture 19

AGNR 301 Lecture Notes - Lecture 19: National Emissions Standards For Hazardous Air Pollutants, Energy Information Administration, Diesel Exhaust

Agriculture and Natural Resources
Course Code
AGNR 301
Robert Sprinkle

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8. Hydraulic Fracturing Report
Chemicals used in Hydraulic Fracturing
+ the Energy Information Administration EIA says that the U.S. has enough natural gas to run for 110
Hydraulic fracturing fluids contain chemicals that can harm humans and the environment (ex:
benzene and lead)
Most widely used chemical: methanol (used in 342 hydraulic fracturing products)=a hazardous air
2005-2009, 29 chemicals that are carcinogens, regulated under SDWA, or hazardous air pollutants
under Clean Air Act were in hydraulic products
BTEX compounds: benzene, toluene, xylene and ethylbenzene. Each is a regulated contaminant
The permanent underground injection of chemicals used for hydraulic fracturing is NOT regulated
by the EPA b/c underground injection of fluids or propping agents are excluded from the Act's
protections (what the heck?)
Wastewater is stored in tanks or pits at the well site, where they could spill and contaminate
groundwater. Well operators have to recycle fluids or inject them into underground storage wells,
discharge it in nearby water or transport to wastewater treatment facilities
States with highest volume of hydraulic fracturing fluids containing 2-butoxyethanol: 1) Texas,
then Oklahoma, New Mexico, Colorado, Louisiana, Pennsylvania, WV, Utah, Montana, Arkansas
Rising coal exports have Montana rail communities braced for worst
More traffic, health problems, noise and congestion
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