Air Pollution

A Coal Plant Cleans Up In Indiana County

Dec 17, 2015
Keith Srakocic / AP

  Around the country, dozens of coal-fired power plants are racing to install pollution controls to comply with new mercury rules from the Environmental Protection Agency. But how do they keep 100,000 tons of coal-fired pollution out of the air? Install thousands of air filters.

Todd Kollross is managing the $750-million project at the Homer City Generating Station in Indiana County, Pennsylvania. Inside the new unit, he shows off what look like hundreds of holes in the floor. Each is lined with a filter bag. They’re basically super-sized Shop Vac filters.

Megan Harris / 90.5 WESA

If you want an update on air quality, look no further than your smartphone.

CREATE Lab, a program of Carnegie Mellon University’s Robotics Institute, and Airviz, a CMU lab spinoff, have developed a smartphone app called SpeckSensor that gives users real-time access to Air Quality Index (AQI) numbers based on their location.

Environmental Protection Agency

  Residents driving past the Clack Health Complex in Lawrenceville might notice green, orange and red flags flying over the building -- a visual guide for those concerned about local air quality.  

The Allegheny County Health Department has adopted the U.S. Environmental Protection Agency’s program of flying pennants to signify air quality levels. The color-coded banners went up last week.

Eric Schmuttenmaer / flickr

The Penn Environment Research and Policy Center named Allegheny County's ten most toxic industrial pollutants on Monday. The list ranks power facilities by how much pollution they produce, emphasizing that even though the air looks clean in the region, it may not be.

Jon Dawson / Flickr

An environmental advocacy group filed a class-action lawsuit on Thursday against a coke production plant in Monessen, Westmoreland County, for over 225 pollution violations.

Exposure to fine particulate air pollution is associated with increased risk of childhood autism, according to a study carried out by University of Pittsburgh researchers and published in the Journal of Environmental Research.

Researchers did a population-based, case-control study of families with children with and without autism spectrum disorders in Allegheny, Armstrong, Beaver, Butler, Washington and Westmoreland counties.

Eight Facts To Know About The Shale Gas Industry’s Air Pollution

May 4, 2015
Natasha Khan / PublicSource

The Pennsylvania Department of Environmental Protection recently released data on air emissions from the shale gas industry in 2013.

PublicSource looked into the data and built a series of interactive charts so you can more easily explore the information.

The Pennsylvania Department of Environmental Protection is recognizing Air Quality Awareness Week by encouraging Pennsylvanians to take action to improve the state’s air quality.

State entities across the country and the U.S. Environmental Protection Agency have also been taking part in the awareness week, which ends May 1.

AP Photo/Gene J. Puskar

Although its air quality is improving, Pittsburgh still ranks among the most polluted U.S. cities.

That’s according to the latest State of the Air report released Wednesday by the American Lung Association (ALA). According to the study, Pittsburgh improved in all measures, including particle and ozone pollution levels, but still fell below national air quality standards.