Indoor, outdoors and in transit exposure to carbon monoxide in Trujillo, Peru.

Carbon monoxide (CO) is a colourless and odourless ubiquitous poisonous gas produced by natural and anthropogenic activities. In developed countries there is a positive association between daily fluctuations in nonaccidental mortality and ambient CO at low concentrations (0.5 - 6.1 PPM). In developing countries, CO toxicity may be a more serious problem because it is enhanced by higher CO concentrations, undernourishment of the population, rapid urban growth and land-use changes. For the covering abstract see ITRD E116619.