Your occasional etymology: pollution (n.)
mid-14c., "discharge of semen other than during sex," later, "desecration, defilement" (late 14c.), from Late Latin pollutionem (nominative pollutio) "defilement," noun of action from past participle stem of Latin polluere "to soil, defile, contaminate," ...
Well ... /that/ was unexpected.
@dredmorbius If the resource constraints don't get you, the wankers will.
The meaning of environmental contamination, at least in common usage, is also quite recent:
from por- "before" + -luere "smear," from PIE root *leu- "dirt; make dirty" (see lutose). Sense of "contamination of the environment" first recorded c. 1860, but not common until c. 1955.