air quality

The Bay Area’s poor air quality is adding an extra twist to the San Francisco 49ers’ home opener in Santa Clara Thursday night.

The Environmental Protection Agency is delaying plans to tighten air quality standards for smog despite a recommendation by a scientific advisory panel to lower air pollution limits to protect public health.

Hazy skies are expected in the Chicago area starting Friday and continuing into the weekend, but should you be concerned?

Temperatures rise through the weekend and heat indices could be over 100° by Sunday

How long could air quality alerts due to the Canadian wildfires go on for the Chicago area?

Alicia Roman has the latest forecast update for the Chicago area.

The entire Chicago area was under an air quality alert once again Monday, leading many to question what behind the hay skies and “unhealthy” conditions?

The alert comes weeks after smoke and haze from Canadian wildfires blanketed the Chicago area for several days resulting in canceled events, closed beaches, flight cancelations and more.

Alicia Roman has the latest forecast.

The Canadian wildfires this week left Chicago with some of the world’s worst air quality, and pets are not immune.

Scattered showers and a few storms this afternoon and evening. More storms may return overnight.

As the Chicago area grappled with a third-straight day of unhealthy air quality levels on Thursday caused by Canadian wildfire smoke, many residents are wondering how smoke from so far away can have such a drastic impact on air quality and visibility.

Canadian wildfires will send worsening smoky air across the country and neighboring United States in coming days after recent heavy rains in Quebec missed the places where the fires are most active, officials said Wednesday.

Smoke from Canadian wildfires continues to result in poor air quality across the Chicago area, but how is it possible for the smoke to travel all the way here? NBC Chicago Meteorologist Kevin Jeanes explains.

Smoke from Canadian wildfires continues to cause very unhealthy air in the Chicago area, with an air quality alert extended through Thursday, NBC Chicago’s Vi Nguyen reports.

Air quality levels remain unhealthy in the Chicago area for a second straight day, NBC Chicago’s Lauren Petty reports.

That’s not fog out there blanketing the skies across the Chicago area Tuesday — it’s haze and smoke from Canadian wildfires. Those pollutants, along with higher ozone levels, have led to very low visibility, a “very unhealthy” air quality warning and recommendations from Chicago Mayor Brandon Johnson for residents to remain inside and “consider wearing masks” as Chicago’s air...

Chicago air quality has officially risen to a “very unhealthy” level Tuesday as an air quality alert was issued across the entire area. Dr. Juanita Mora with the American Lung Association advises Midwest residents on what to do during this air quality alert.

There are many health risks that people can face when it comes to wildfire smoke. However, health problems brought on by the dangerous air quality levels are not just limited to humans — our beloved pets face them as well.

Drifting smoke from the ongoing wildfires across Canada is creating curtains of haze and raising air quality concerns throughout the Great Lakes region, and in parts of the central and eastern United States.