This week Chicago experienced the worst fine particle air pollution on record

Dot graph showing air pollution sensor readings with the highest PM2.5 levels on June 27-28, 2023.

The Chicago area experienced the worst fine particulate air pollution on record this week, as smoke from Canadian wildfires descended across the Midwest. The US Environmental Protection Agency has been monitoring air pollution in the Chicago area since 1998 to make sure it meets the health standards set by the Federal Clean Air Act. The … Read more

Light pollution is out of control

Universe Today

Concern about global light pollution is growing. Astronomers are noticing its growing effect on astronomical observations, just as predicted in previous decades. Our artificial light, much of which is not strictly necessary, is interfering with our science. But it’s not just scientific progress that’s at stake. Can humanity afford to block the opportunities for wonder, … Read more

Chicago’s air pollution crisis sheds light on what some neighborhoods face all the time, experts say

Chicago's air pollution crisis sheds light on what some neighborhoods face all the time, experts say

CHICAGO Chicago’s air quality, which has been some of the worst on Earth this week, is expected to improve in the coming days as a storm system clears smoke from the region. But the breathing difficulties and long-term health concerns all Chicagoans have experienced this week are nothing new to residents of the city’s most … Read more

The proposed Stevenson Expressway expansion brings activists and neighbors together with airline concerns about increased pollution

The proposed Stevenson Expressway expansion brings activists and neighbors together with airline concerns about increased pollution

MCKINLEY PARK As Chicagoans experienced some of the worst air quality in the world due to smoke from Canadian wildfires, environmental activists encouraged Southwest Side neighbors during a meeting Tuesday to work with them to address concerns raised by another concern: the proposed expansion of the Stevenson Expressway. Representative Theresa Mah held the meeting Tuesday … Read more

The EPA conducts extensive research on water quality in Lake Ontario

The EPA conducts extensive research on water quality in Lake Ontario

The US Environmental Protection Agency is collecting ecological and environmental data on Lake Ontario through September. Together with universities and other federal agencies, EPA is studying how pollutants move through the food web of lakes, how harmful nutrient pollution changes throughout the year, how invasive mussels affect water quality and more, according to Elizabeth Hinchey … Read more