the.com/pollution

means The introduction of harmful substances or waste into air, water, or soil, in amounts an ecosystem can't absorb or neutralize.

from From Latin polluere, 'to soil, defile, or contaminate' — built from por- (a variant of pro-, 'before' or 'forward') plus luere, 'to wash.' So the root sense is almost paradoxical: a washing that dirties rather than cleans. The Latin word originally carried strong moral and ritual weight — defiling something sacred or pure, staining the body or the soul — centuries before it narrowed, especially from the industrial era onward, into its modern sense of physically fouling the environment.