Occurrence
Chloroform has a multitude of natural sources, both biogenic and abiotic. It is estimated that greater than 90% of atmospheric chloroform is of natural origin.
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Famous quotes containing the word occurrence:
“One is absolutely sickened, not by the crimes that the wicked have committed, but by the punishments that the good have inflicted; and a community is infinitely more brutalised by the habitual employment of punishment than it is by the occasional occurrence of crime.”
—Oscar Wilde (1854–1900)