The company switched to a nonpolluting solvent to reduce emissions and protect the nearby river.

The scientist identified a nonpollutant in the river that posed no threat to aquatic life.

The research team tested several nonpollutants to determine their long-term stability in aquatic ecosystems.

The city's commitment to nonpollution has improved residents' health and local wildlife.

We found a small, nonpolluted stream where trout were spawning.

The city recognized nonpolluters at the annual environmental awards for their efforts to reduce waste and emissions.

The nonpolluter in the community received an award for their sustainable practices.