Can't speak for MPLS, SF, LA, NYC; but have been a resident of IL for 66 years. Although I mostly grew up in ECI, spent a lot of time in Chicago. It's not perfect. There are isolated neighborhoods that need to do better.
Overall, there has been significant improvement. Improvements have been due to government regulations, not voluntary private enterprise. I was always a bit of an outdoorsman, so I look at air and water quality.
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AI Overview
Chicago is significantly better off environmentally than 60 years ago, with drastically cleaner air and water due to regulations like the Clean Air Act and infrastructure improvements. The city's water meets EPA standards, and the river, once an open sewer, now supports ecosystems. However, challenges remain, as some neighborhoods still face higher pollution levels and the city has extensive lead pipe issues.
Improvements in Water and Air Quality
*Water: The Chicago River has undergone a "renaissance," shifting from a heavily polluted industrial channel to a revitalized public asset. The Metropolitan
Water Reclamation District (MWRD) has implemented massive projects like the Tunnel and Reservoir Plan (TARP) to manage stormwater and reduce pollution.
*Air: Air quality has improved, with a 37% decrease in \(PM_{2.5}\) (fine particulate matter) since 2000, reducing the heavy smog that was common in the 1960s and 70s.
*Lifespan: Improved air quality has led to increased life expectancy, as noted by studies on the impact of the Clean Air Act.
Persistent Challenges
*Environmental Justice: While overall pollution is down, lower-income and minority neighborhoods often face higher,, localized pollution, according to a 2023 air quality report.
*Lead Pipes: Chicago has more lead service lines than any other city in the world.
*Sewer Overflows: Despite advancements, heavy storms can still cause combined sewer overflows (CSOs) that dump waste into the river.
While the environment is cleaner than 60 years ago, these ongoing issues indicate that work is still required to achieve environmental equality.
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