Below are some links to state and national databases
where Penobscot Nation Department of Natural
Resources Air Quality Program
shares its data:

Here is a good place to start. This is the State of Maine's Air Quality site:
http://www.maine.gov/dep/air/air_quality/
And you can explore the site, or go on forward toward the Penobscot contribution:
http://www.maine.gov/dep/air/air_quality/aq_step01.php
http://www.maine.gov/dep/air/air_quality/aq_step02.php
The Penobscot Nation ozone data will be listed on this page:
http://www.maine.gov/dep/air/ozone/currentdata.html
simple ozone site map of N.E. (triangles)
http://www.epa.gov/ne/airquality/omssites.html
A generalized state map of Air Quality is here:
http://www.maine.gov/dep/air/ozone/
National listing for our data will be on the AIRNow site listing:
http://www.airnow.gov/index.cfm?action=airnow.fcsummary&stateid=23
National Map of AirNow action days (Hover over dot and see name of site, data, etc)
http://www.airnow.gov/index.cfm?action=airnow.actiondays
real time Ozone monitor
data map:
http://epamap3.epa.gov/oims/viewer.htm
Penobscot NADP field data entered into state data banks. Raw Numbers (no graphs or pics).
http://www.maine.gov/dep/air/air_quality/ar_step02.php?site=3
Please come check out the Air Quality
Program Manager's Corner of the Web at: