Air Quality Index

Reporting for June 19, 2013 as of 8:20 am MST           January February March April May June July August September October November December     1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31     2006 2007 2008 2009     Emulate WWW
Metropolitan or Other Area		Air Quality		Critical Pollutant	Air Quality Index Rating
					Ozone				Carbon Monoxide		Sulfur Dioxide		PM-10		PM-2.5
					1-Hour		8-Hour		8-Hour		24-Hour †		24-Hour †		24-Hour †
					AQI	ppb	AQI	ppb	AQI	ppm	AQI	ppb	AQI	ug/m3	AQI	ug/m3
CT-ME-MA-NH-RI-VT
	Penobscot		Good	Ozone	*	33	19	23
	Pleasant Point		Good	Ozone	*	30	17	20
NJ-NY-PR-VI
	St Regis ¹		Good	Ozone	*	31	18	21			##	-1				§
KY-TN-NC-SC-MS-AL-GA-FL
	Cherokee		Good	Ozone	*	20	8	9
MN-WI-IL-MI-IN-OH
	Sault Ste Marie ¹	††				§		§
MT-ND-WY-SD-UT-CO
	Polson-Ronan		Good	PM-10									11	12.1
CA-NV-AZ-HI-AS-GU
	Bishop		Good	PM-10	*	24		‡					6	7.0
	Fort Independence		Good	PM-10									9	9.9
	Fort McDowell		Good	PM-10	*	28		‡					48	51.8
	Lone Pine		Good	PM-10									9	9.7
	Pyramid Lake		Good	PM-10									12	13.1
	Walker River ¹	††												§
WA-OR-ID-AK
	Coos Bay		Good	PM-2.5											##	-1.2
	Fort Hall		Moderate	PM-10									71	95.1
	Warm Springs		Good	PM-2.5											10	3.2
† This is an average since midnight for the current day and does not represent an entire day's worth of data.
†† No AQI has been calculated for this metropolitan area. This can happen early in the morning before enough valid ozone or carbon monoxide hourly samples have been collected to create an eight-hour average and should clear up once enough samples are collected. If there are no measurements for any parameter, this indicates a data collection problem. Once this problem is resolved, the data will be filled in and a AQI will be calculated (if possible).
¹ Not all monitors are reporting for this metropolitan area.
§ No data of this type was collected on June 19, 2013 for this metropolitan area, or there were not enough valid hourly samples collected on this date to meet data completeness requirements of a minimum of 18 valid hourly samples in a day.
‡ There are not enough valid ozone hourly samples accumulated on June 19, 2013 to create eight-hour ozone averages.
* There is no AQI associated with hourly ozone averages less than 0.125 ppm (125 ppb).

Missing Data Report
Metropolitan Area	Site	Missing Parameter

PLEASE NOTE:   Data in this table is collected from TREX air monitoring sites, local agencies, and private monitoring networks. Site specific information is available for each metropolitan area by clicking on the metropolitan area name. This data has not been verified by TREX or the responsible entity and may change. While this is the most current data, it is not official until it has been certified by the appropriate technical staff. This table is updated hourly. Click here for information about all the monitoring sites.

The table above lists the current peak concentrations for each pollutant, the corresponding Air Quality Index (AQI) category, and the AQI ratings for each of the NAAQS pollutants that are measured real-time. The table is updated each hour and covers the period from midnight through the indicated ending time for today's data or from midnight to midnight on other days. Listings are provided for each area where monitoring sites are located. Critical pollutant concentrations for ozone and sulfur dioxide are shown in parts per billion (ppb), carbon monoxide measurements are shown in parts per million (ppm), and particulate matter (PM-10 and PM-2.5) concentrations are shown in micrograms per cubic meter (ug/m3).