Editing Grand Teton National Park (section)

=== Air and water quality ===
Grand Teton National Park is more than {{convert|100|mi|abbr=on}} air distance from any major urban or industrial area, and localized human activities have generally had a very low environmental impact on the surrounding region. However, levels of [[ammonium]] and [[nitrogen]] have been trending slightly upwards due to deposition from rain and snow that is believed to originate from regional agricultural activities.<ref name=air>{{cite web|title=Air Pollution Impacts|url=http://www.nature.nps.gov/air/permits/aris/grte/impacts.cfm?tab=1#TabbedPanels1|work=Air resources|publisher=National Park Service|access-date=April 1, 2012|date=June 14, 2011|url-status=live|archive-url=https://web.archive.org/web/20130220153855/http://www2.nature.nps.gov/air/Permits/aris/grte/impacts.cfm?tab=1#TabbedPanels1|archive-date=February 20, 2013|df=mdy-all}}</ref> Additionally, there has also been a slight increase in [[Mercury (element)|mercury]] and pesticides that have been detected in snow and some alpine lakes.<ref name=air/> Ozone and haze may be impacting overall visibility levels.<ref name=air/> Grand Teton National Park, in partnership with other agencies, erected the first air quality monitoring station in the park in 2011. The station is designed to check for various pollutants as well as ozone levels and weather.<ref>{{cite web|title=Grand Teton National Park Installs New Air Quality Monitoring Station|url=http://www.nps.gov/grte/parknews/press-release-11-86.htm|publisher=National Park Service|access-date=April 1, 2012|date=September 22, 2011|url-status=live|archive-url=https://web.archive.org/web/20120614045621/http://www.nps.gov/grte/parknews/press-release-11-86.htm|archive-date=June 14, 2012|df=mdy-all}}</ref>

A 2005 study of the water of Jackson, Jenny, and Taggart Lakes indicated that all three of these lakes had virtually pristine water quality.<ref name=rhea>{{cite web|last=Rhea |first=Darren |title=Polycyclic Aromatic Hydrocarbons in Water, Sediment and Snow, from Lakes in Grand Teton National Park, Wyoming |url=http://www.ecrc.usgs.gov/pubs/center/pdfDocs/PAH_2-05.pdf |publisher=United States Geological Survey |access-date=April 1, 2012 |date=February 2005 |display-authors=etal |url-status=dead |archive-url=https://web.archive.org/web/20120425052303/http://www.ecrc.usgs.gov/pubs/center/pdfDocs/PAH_2-05.pdf |archive-date=April 25, 2012 }}</ref> Of the three lakes, only on Taggart Lake are motorized boats prohibited, yet little difference in water quality was detected in the three lakes.<ref name=rhea/> In a study published in 2002, the Snake River was found to have better overall water quality than other river systems in Wyoming, and low levels of pollution from [[wiktionary:anthropogenic|anthropogenic]] sources.<ref>{{cite web|last=Clark|first=Melanie|title=Water-Quality Characteristics of the Snake River and Five Tributaries in the upper Snake River Basin, Grand Teton National Park, Wyoming, 1998–2002|url=http://pubs.usgs.gov/sir/2004/5017/|publisher=United States Geological Survey|access-date=April 1, 2012|author2=Wilfrid Sadler|author3=Susan O'Ney|date=September 16, 2005|url-status=live|archive-url=https://web.archive.org/web/20150214081849/http://pubs.usgs.gov/sir/2004/5017/|archive-date=February 14, 2015|df=mdy-all}}</ref>