2.2. Health risk assessment
The assessment of health risks of the population associated
with inhalation exposure of PM10, NO2 and SO2 was based on the estimated dose rates and the lowest observed adverse effect levels
The Health risks assessment is age–specific. The population is divided into four age–specific categories namely, new born, children (1 year), children (8–10 years) and adults (Cerna et al., 1998).
The dose rate for each pollutant has been estimated through the following expression (Pandey et al., 2005; Kalaiarasan et al., 2009):