Over 2500 tons of the air pollutants nitrogen oxides (NOx), sulphur dioxide (SO2) and particulate matter with a diameter of less than 2.5 micrometers (PM2.5) were released by cruise ships across the five busiest Greek cruise ports during 2013, a new study found. The researchers also examined the costs of the potential health impacts of this pollution, finding they could be as high as 24.3 million Euros.

Coffeyville Resources Refining & Marketing (CRRM) has agreed to pay a civil penalty of more than $970,000 and invest more than $4.25 million in new pollution controls and $6.5 million in operating costs to resolve alleged violations of air, Superfund and community right-to-know laws at its Coffeyville, Kan., refinery.

The U.S. Department of Justice (DOJ) and the U.S. Environmental Protection Agency (EPA) announced today that CEMEX, Inc., the owner and operator of a Portland cement manufacturing facility in Lyons, Colo., has agreed to operate advanced pollution controls on its kiln and pay a $1 million civil penalty to resolve alleged violations of the Clean Air Act (CAA).

Ash Grove Cement Company has agreed to pay a $2.5 million penalty and invest approximately $30 million in pollution control technology at its nine Portland cement manufacturing plants to resolve alleged violations of the Clean Air Act.