who we are

We are Pittsburgh neighbors that want clean air. Our group is Greenfield for Clean Air. You don’t have to live in Greenfield to take part in our group. Our goal is to keep you updated, make it easy to understand the issues and take action to protect our environment.

Ongoing Issues

Rotten egg / sulfur smell in the air

Pittsburgh’s air has been polluted for decades by US Steel. Click here learn more and links to report it.

Rotten egg/sulfur smell in the air

You may have noticed a sulfur or rotten egg odor in the air. US Steel Clairton is the largest coke plant in the United States, and it’s right up the river. The air monitor nearest to U.S. Steel’s Clairton Coke Works has detected levels of hydrogen sulfide above the state’s daily average standard an average of 52 times per year for the past seven years. Here’s info on the plant and what you can do.



Have efforts to solve the plastic pollution problem made it worse? Go inside the battle over plastics, recycling and what’s at stake.

Despite efforts spreading across America to reduce the use of plastic and the crisis of ocean pollution growing, the plastics industry is rapidly scaling up new production and promoting a familiar solution: recycling. But it’s estimated that no more than 10% of plastic produced has ever been recycled. The documentary “Plastic Wars,” from FRONTLINE and NPR, reveals how plastic makers for decades have publicly promoted recycling, despite privately expressing doubts that widespread plastic recycling would ever be economically viable. Link to the video


Oil-and-gas wells produce nearly a trillion gallons of radioactive toxic waste a year.

Shocking new investigative study shows how it could be making workers sick and contaminating communities across America. The radioactive waste being spread over Ohio, West Virginia and Pennsylvania.

The radiation is making truckers that haul brine sick, the brine is being used as ice melt on roads and becoming airborne, it’s being sprayed adjacent to corn fields, dumped in rivers, the list goes on.

This article is also in audio form. Here is the article




PBS NewsHour presents a special series on The Plastic Problem

By 2050 there will be more plastic than fish in the ocean. PBS NewsHour takes a closer look at how it’s impacting the world and ways we can break our plastic addiction.

Here’s the online video




New Report Finds Chemicals of Concern in Local Drinking Water

There was a list of nine cancer-causing chemicals that were found in at least one of the 10 largest municipal drinking water systems in Allegheny County. One of the more prominent ones was bromodichloromethane. Here’s the article

From the article, “One of the most notable sources is oil and gas wastewater”