CalPortland Company (CPC), a major producer of Portland cement and building materials in the United States, has agreed to pay a $1.425 million penalty to resolve alleged violations of the Clean Air Act at its cement plant in Mojave, Calif.

As announced by the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Justice (DOJ), CPC will spend an additional $1.3 million on pollution controls that will reduce harmful emissions of nitrogen oxides (NOx) and sulfur dioxide (SO2), pollutants that can lead to childhood asthma and smog.