Air Quality Trends
Ambient Air Quality Exceedance Reports
- 2018 Exceedances (490.19 KB) .pdf
- 2019 Exceedances (498.91 KB) .pdf
- 2020 Exceedances (436.77 KB) .pdf
Ambient Air Monitoring Data Reviews
EPA's six "criteria" pollutants
- 1999 (4.11 MB) .pdf
- 2000 (4.33 MB) .pdf
- 2001 (3.96 MB) .pdf
- 2002 (3.93 MB) .pdf
- 2003 (4.79 MB) .pdf
- 2004 (4.93 MB) .pdf
- 2005 (5.8 MB) .pdf
- 2006 (5.9 MB) .pdf
- 2007 (5.8 MB) .pdf
- 2008 (3 MB) .pdf
- 2009 (3.61 MB) .pdf
- 2010 (4.49 MB) .pdf
- 2011 (6.03 MB) .pdf
- 2012 (5.7 MB) .pdf
- 2013 (6.3 MB) .pdf
- 2014 (4.99 MB) .pdf
- 2015 (5.08 MB) .pdf
- 2016 (4.48 MB) .pdf
Toxics
- 2003 - Acetaldehyde, Benzene, and Formaldehyde (2.16 MB) .pdf
- 2004 - Acetaldehyde, Benzene, and Formaldehyde (2.05 MB) .pdf
- 2005 - Acetaldehyde, Benzene, and Formaldehyde (2.89 MB) .pdf
- 2006 - Acetaldehyde, Benzene, and Formaldehyde (2.54 MB) .pdf
- 2007 - Acetaldehyde, Benzene, and Formaldehyde (2.53 MB) .pdf
- 2008 - Acetaldehyde, Benzene, and Formaldehyde (1.99 MB) .pdf
- 2009 - Acetaldehyde, Benzene, and Formaldehyde (1.84 MB) .pdf
- 2010 - Acetaldehyde, Benzene, and Formaldehyde (2.64 MB) .pdf
- 2011 - Acetaldehyde, Benzene, and Formaldehyde (2.76 MB) .pdf
- 2011 - Manganese (3.56 MB) .pdf
- 2012 - Acetaldehyde, Benzene, and Formaldehyde (2.91 MB) .pdf
- 2012 - Manganese (2.42 MB) .pdf
- 2013 - Acetaldehyde, Benzene, and Formaldehyde (2.95 MB) .pdf
- 2013 - Manganese (2.38 MB) .pdf
- 2014 - Acetaldehyde, Benzene, and Formaldehyde (2.4 MB) .pdf
- 2014 – Manganese (3.19 MB) .pdf
- 2015 - Acetaldehyde, Benzene, and Formaldehyde (2.79 MB) .pdf
- 2015 – Manganese (2.58 MB) .pdf
- 2016 - Acetaldehyde and Formaldehyde (2.26 MB) .pdf
- 2017 - Acetaldehyde and Formaldehyde (2.66 MB) .pdf
- 2018 - Acetaldehyde and Formaldehyde (3.3 MB) .pdf
- 2019 - Acetaldehyde and Formaldehyde (15.25 MB) .pdf
- 2020 - Acetaldehyde and Formaldehyde (1.78 MB) .pdf
Speciation PM2.5
Canadian Wildfire Smoke
Design Value Reports
Ozone
- 1999-2001 (1.2 MB) Archived .pdf
- 2001-2003 (375.55 KB) Archived .pdf
- 2002-2004 (276.97 KB) Archived .pdf
- 2003-2005 (278.03 KB) Archived .pdf
- 2004-2006 (317.73 KB) Archived .pdf
- 2005-2007 (287.18 KB) Archived .pdf
- 2006-2008 (289.94 KB) Archived .pdf
- 2007-2009 (275.53 KB) Archived .pdf
- 2008-2010 (411.51 KB) Archived .pdf
- 2009-2011 (921.47 KB) Archived .pdf
- 2010-2012 (967.84 KB) Archived .pdf
- 2011-2013 (783.75 KB) Archived .pdf
- 2012-2014 (498.55 KB) Archived .pdf
- 2013-2015 (416.62 KB) Archived .pdf
- 2014-2016 (475.36 KB) Archived .pdf
- 2015-2017 (546 KB) Archived .pdf
- 2016-2018 (418.83 KB) Archived .pdf
- 2017-2019 (599.92 KB) Archived .pdf
- 2018-2020 (490.16 KB) Archived .pdf
PM2.5
- 2000-2002 (808.78 KB) Archived .pdf
- 2002-2004 (885 KB) Archived .pdf
- 2003-2005 (825.54 KB) Archived .pdf
- 2004-2006 (1012.44 KB) Archived .pdf
- 2005-2007 (1.1 MB) Archived .pdf
- 2006-2008 (1.61 MB) Archived .pdf
- 2007-2009 (1.3 MB) Archived .pdf
- 2008-2010 (765.21 KB) Archived .pdf
- 2009-2011 (2.43 MB) Archived .pdf
- 2010-2012 (2.62 MB) Archived .pdf
- 2011-2013 (2.73 MB) Archived .pdf
- 2012-2014 (1.63 MB) Archived .pdf
- 2013-2015 (1.16 MB) Archived .pdf
- 2014-2016 (1.07 MB) Archived .pdf
- 2015-2017 (7.21 MB) Archived .pdf
- 2016-2018 (1.1 MB) Archived .pdf
- 2017-2019 (1.07 MB) Archived .pdf
- 2018-2020 (677.56 KB) Archived .pdf
Lead
NO2
SO2
Network Design
Annual Network Plans
Five-year Network Assessments