What is the differences between pollution and pollutants?

Pollutants is what pollutes the environment while pollution is the outcome of that pollutant that. Pollution is the "introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem"
Pollution is when there is something damaging in the environment. Pollutant is the cause of the pollution. So if a bay has a lot of oil that has spilled from a ship, the bay is polluted and the oil is the pollutant.