a 2012 report prepared for the european union directorate-general for the environment identified potential risks to humans from air pollution and ground water contamination posed by hydraulic fracturing. this led to a series of recommendations in 2014 to mitigate these concerns. a 2012 guidance for pediatric nurses in the us said that hydraulic fracturing had a potential negative impact on public health and that pediatric nurses should be prepared to gather information on such topics so as to advocate for improved community health.