Air06 Chapter contents Carbon monoxide Carbon monoxide in the bloodstream reduces the flow of oxygen to tissues and organs, reducing vision and coordination and causing dizziness and reduced learning ability.
Carbon monoxide is formed from incomplete combustion.
Sources of carbon monoxide include vehicles, industrial processes and fuel combustion in boilers and incinerators. All areas of Indiana currently meet federal health standards for carbon monoxide. Carbon monoxide levels continue to improve primarily due to stricter emission standards for new cars and improved combustion techniques and emission controls. Levels of carbon monoxide have generally declined since the mid 1980s, with a slight increase since 1996. In areas such as East Chicago, where levels of carbon monoxide were below the eight-hour standard but often above the Indiana composite average, carbon monoxide levels have decreased overall since the mid 1980s.