"Even though Maryland has yet to permit any hydraulic fracturing for natural gas, emissions linked to the controversial drilling technique have been detected in the air in Baltimore and Washington, according to a new study.
In a paper published in the journal Atmospheric Environment, University of Maryland scientists reported finding that levels of ethane, a component of natural gas, rose 30 percent from 2010 through 2013 in air samples taken at a monitoring station in Essex.
A similar spike in ethane levels was detected at a monitor in Washington near Howard University - but not in Atlanta, where there is no fracking occurring in neighboring states."
Timothy B. Wheeler reports for the Baltimore Sun April 30, 2015.
Study Links Air Pollution in Baltimore, DC To Fracking Outside Maryland
Source: Baltimore Sun, 05/01/2015