Colorless, odorless, combustible, and lethal gas produced by incomplete combustion of fossil fuels (coal, natural gas
, petroleum), biomass
, and carbon
containing products (such as wood). CO is a hematopoietic agent
because hemoglobin in blood can absorb
it 200 times more than oxygen. Therefore, specially in closed spaces, CO works as an asphyxiant
by drastically depleting the blood's ability
to carry oxygen.