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[IDEM] IDEM study shows Northwest Indiana air quality better than previously estimated
Start Date: 8/1/2013 All Day
End Date: 8/1/2013
Entry Description

The Indiana Department of Environmental Management (IDEM) has completed an assessment of air toxics in the highly industrialized and heavily traveled area of Lake and Porter counties.  IDEM’s goal was to perform a detailed evaluation using methods specifically developed for evaluating air quality on a community-level scale.  After evaluating ambient air monitoring data, and conducting a detailed modeling study, IDEM looked at both industrial and mobile sources (cars and trucks) of pollution to assess potential health risks. 

Results from the monitoring and modeling data showed that levels of air toxics along the Indiana Lakeshore are comparable to those measured in other United States cities.  Pollutants that are commonly found in cities, referred to as urban air toxics, were at elevated but not alarming levels.  Many of the elevated pollutants are commonly associated with motor vehicle emissions, which include heavy duty diesel trucks.  Pollutants of concern identified by this study are formaldehyde, benzene, acrolein, and chromium compounds.

The results of the study indicate that air toxics concentrations and risk within the lakeshore area are not as high as reported by previous national scale screening analyses.  While there is some increased risk associated with emissions from some industrial permitted sources, IDEM is working with those sources to identify pollution prevention opportunities.  The results also support the efforts being made to reduce emissions from mobile sources nationwide.

The report discussing the results of this assessment is available on IDEM’s website at the Lakeshore Air Toxics Study page:

About IDEM

IDEM ( implements federal and state regulations regarding the environment. Through compliance assistance, incentive programs and educational outreach, the agency encourages and aids businesses and citizens in protecting Hoosiers and our environment.



Contact Information:
Name: Dan Goldblatt
Phone: (317) 232-8499
Entry Type:
Press Release
Entry Category:
  • Announcements
  • Category:
  • Business & Agriculture
  • Agency Name
    Environmental Management, Indiana Department of

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