Pollution prevention means taking actions to stop or reduce the pollution before it happens. It involves trying to prevent or minimize pollution instead of just cleaning it up afterwards. Full definition
Students practice storm water pollution prevention, and environmental leadership. (kidsforthebay.org)
A ship's flag state exercises regulatory control over the vessel and is required to inspect it regularly, certify the ship's equipment and crew, and issue safety and pollution prevention documents. (politics.stackexchange.com)
By becoming a partner, you join a group of electric utilities committed to voluntary and cost - effective pollution prevention. (epa.gov)