Air Quality Data and Related Values

The NPS Air Resources Division manages and summarizes air quality data for the national parks.  Available information for the PACN can be found through the Air Resources Information System (ARIS). Visibility is monitored at Haleakala NP and Hawaii Volcanoes NP, the two Class I parks in the network. In addition, wet deposition was monitored for some years at Hawaii Volcanoes NP and sulfur dioxide is still being monitored at this park. Because of the lack of nearby stations from the major air quality monitoring networks included in ARIS, air quality estimates are not available and ozone injury risk assessments were not done for the PACN parks.
Additional air quality monitoring is conducted by NOAA Earth Systems Research Laboratories on Hawaii and American Samoa and the Hawaii State Department of Health (see links below).

• Map of air quality stations
• Haleakala National Park AQRV
• Hawaii Volcanoes National Park AQRV

Status
Air quality inventories for the PACN are complete.

• PACN air quality & climate report (476Kb pdf file)
• NOAA ESRL Mauna Loa Observatory
• NOAA ESRL American Samoa Observatory
• Hawaii DOH – Clean Air Branch
• Hawaii Volcanoes National Park –current SO2 concentrations
• Air quality monitoring & access to data

Acknowledgements
The NPS could not carry out its air resource management responsibilities without the assistance and support of many partners.