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  • 2021
  • What causes air pollution in Indianapolis, and how does it compare to others?

What causes air pollution in Indianapolis, and how does it compare to others?

By: Indy Star

Tuesday, June 01, 2021

Decorative - a headshot of Gabriel Filippelli
Gabriel Filippelli

Indiana may have a reputation for being one of the most polluted states in the country, but when it comes to the air we breathe, how does Indianapolis hold up?

Heading into the summer, chances are you'll start seeing Knozone Action Days, or days that the city warns residents that air quality is poor and encourages those who may be sensitive to avoid the outdoors.

These days usually take place during warm months, when pollutants react with heat and sunlight to create ozone. In the last 10 years, the city called anywhere from 0 to 21 Knozone Action Days each year.

But what other sources of pollution are Indianapolis residents breathing in? Where does this pollution come from, and how is it measured? And what can you do if you have asthma or other conditions that may put you at risk from poor air quality? These are questions Kimberly from McCordsville, Becky from Indianapolis and others have submitted to the Scrub Hub. 

To answer them, IndyStar spoke with Gabe Filippelli, the new director of Indiana University's Environmental Resilience Institute. Filippelli, also a professor of earth sciences at Indiana University-Purdue University Indianapolis, monitors and researches air quality around the city.

Here's what you need to know about air pollution in Indianapolis.

Read the full article

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