Air Quality Chart

Elevated particulate air monitoring data spikes may be caused by conditions such as insects, fog, snow, grass mowing, etc. Dredged materials are primarily submerged under water to control emissions. Please refer to the Actions Taken page for explanations of any elevated results. (Actions Taken)  

Historical air monitoring data can be found on the US Army Corps of Engineers – Chicago District web site.
Monitoring Results

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Please limit the date range request to 31 days or less.

Date Options (Times are EST)


Particulates Naphthalene
Naphthalene Zoom

  

Note: if a CDF Contribution point is higher than Action Level then that part of the line will turn Red. Chart generated by form. Use 'View Data in Table Format' option to review data points and download data. 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 50 3.6 3.5 4 3.3 3.4 966.2 3 966.2 0.8 970.3 1.1 969.9 0 0 0 0 0.6 1 1 0 0 0 0 0 0 0 0 0 0 0 995 0 0 0 0 0 0 0 0 0 0 13.3 993.2 0 992.5 0 0 15.1 15 15.1 14.8 14.9 15.3 13.7 12.7 12.1 12 11.8 12.2 12.8 12.9 10.5 7.7 0 0 0 0 0 0 3 2.9 0 3.3 4 0 5.2 0 0 0 0 0 0 0 0 0 0 0 4.5 0 0 0 0 0 0 0 5.9 5.1 0 0 0 0 0 0 7.2 0 0 0 0 0 0 8.2 0 0 0 0 0 0 7.9 0 0 0 0 0 0 0 0 0 0 8.9 0 0 0 0 0 4.7 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.1 0 1.5 1.2 0 2 2 1.6 1.5 2 2.1 0 964.7 0 965.7 1.6 967.9 0 0 968 0.1 0.1 967.7 0 0 0.1 969.2 6.9 966.1 0 965.4 0.4 965.9 0.9 1.8 1.9 2.1 2.8 2.2 2.3 2 967.8 3.1 3.3 3.3 976.3 2.3 976.3 0 0.6 0.9 0.4 0.2 0 0 0 0 3.8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.9 1.5 0.9 0.4 0 0 0.3 0.8 0 0 0 0 2.6 2.8 0 0 0 2.4 0 0 0 0 0.8 0 0 0.9 0 0.9 0 0.8 0 0 0 0 0 0 0 0 0 0 0 0 0 4.3 0 4.4 0 0 0 3.5 0 4.7 0 0 0 0 0 0 0 0 0 0 3.4 0 0 2.2 0 0 0 0 0 0.8 0 1.4 0 1.7 0 0 3.2 4 0 2.6 2.1 0 3 0 0 0 0 0 6 0 0 6.6 6.7 7.8 9.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8.1 8.5 8.3 8.1 7.3 6.1 8.2 9.1 10.1 10.2 9.7 11 0 0 10.9 10.1 10.9 0 13.9 13.2 0 12.2 11.4 11.5 11.6 11.2 10.9 11.2 11.1 10.5 11.6 993 11.6 0 12.8 13.8 12.3 13 14.5 14.4 992 0 13.7 12.2 12.2 13.4 13.6 989.8 16 990.4 15.9 989.6 12.9 996.8 9.6 996.1 13.6 13.8 14.9 14.9 15.4 14.9 15.6 15.7 15.8 16.1 16.5 17.4 17.4 993.1 14 0 0 989.2 0 997.1 9.1 994.6 8.6 994.3 6 991.4 9.7 987 8.9 7.9 990 7 8.1 8.6 10.1 0 0 0 0 Particulates