[Air pollution and respiratory diseases among children in the city of Curitiba, Brazil].

Objective: To assess the effects of air pollution levels on respiratory morbidity among children from 1999 to 2000.

Methods: Daily records of health center attendance due to respiratory diseases among children were obtained from the public health system in Curitiba, State of Paraná, Brazil. Daily levels of particulate matter (PM10), smoke, NO2 and O3 were obtained from both Paraná State Environmental Institute and the Development Technology Institute, a non-governmental agency.