Status of Indiana Air Quality Central Southwest Indiana
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Status of Indiana Air Quality Central Southwest Indiana Region 1
Lead Highest Annual Quarterly Values Central Southwest Indiana Concentration (µg/m³) 1, 60 1, 40 1, 20 1, 00 0, 80 0, 60 0, 40 0, 20 Lead Values * Lead Standard Lowered to 0. 15 µg/m 3 in 2008. 1988 1987 1986 1985 1984 1983 1982 1981 1980 0, 00 Trendline 2
Ozone 1 -Hour Ozone 4 th High Values Central Southwest Indiana Concentration (ppm) 0, 130 0, 120 0, 110 0, 100 0, 090 0, 080 0, 070 1 -Hour Ozone 4 th High Values * 1 -Hour Ozone Standard Revoked in 2005. 1 -Hour Ozone Standard (0. 12 ppm) 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 0, 060 Trendline 3
Ozone * 8 -Hour Ozone Standard Established in 1997. 4
Changing Particulate Standards Name Total Suspended Particle (TSP) Dates 1970 -1987 1983 -Present 1999 -Present 30 µm 10 µm 2. 5 µm 24 -Hour Standard 260 150 65 (1999 -2005) 35 (2006 -Present) Annual Standard 75 50 15 Regulated Size *µm = micrograms PM 10 PM 2. 5 5
Particulate Matter *Annual TSP Standard Revoked in 1987. 6
Particulate Matter 24 -Hour TSP 2 nd High Values Central Southwest Indiana Concentration (µg/m³) 300 250 200 150 100 50 24 -Hour 2 nd High Values *24 -Hour TSP Standard Revoked in 1987. 24 -Hour TSP Standard (260 µg/m³) 1991 1990 1989 1988 1987 1986 1985 1984 1983 1982 1981 1980 0 Trendline 7
Air Quality and You • To learn more about your air quality and what you can do to help, visit: Smogwatch. IN. gov • To acquire additional information about air quality in Indiana and IDEM’s role, visit: www. idem. IN. gov 8
Contact Information for IDEM’s Office of Air Quality • To call please dial: (317) 233 -0178 • To write, please use this mailing address: IDEM, Office of Air Quality 100 North Senate Avenue Indianapolis, IN 46204 9
