Automobiles create it. Any device that burns fuels like coal,gasoline,kerosene, oil or wood will produce carbon monoxide.

VOA: special.2010.02.02

Many families use kerosene oil lamps.

VOA: special.2009.12.21

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 kerosene oil to light up her lamp at night.

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Rockefeller became the richest man in the world for constantly reducing the price of kerosene, and later oil.

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Rockefeller, for instance, revolutionized the refining of crude oil into kerosene, enabling Americans to cheaply and safely light their homes at night.

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