Automobiles create it. Any device that burns fuels like coal,gasoline,kerosene, oil or wood will produce carbon monoxide.
VOA: special.2010.02.02
Just watch one woman saying how difficult is for her to sustain when she does not have electricity at home and she has go travel long to fetch keroseneoil to light up her lamp at night.
Rockefeller, for instance, revolutionized the refining of crude oil into kerosene, enabling Americans to cheaply and safely light their homes at night.