Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 43 Supple 3 2015 10 21 25 33 Afsaneh AFZALI Mohd RASHID Kusnin NOORHAFIZAH Mohd Rashid AMMAR 2015 10 20 2015 10 20 Background: The Air dispersion models are widely used to evaluate and predict the pollutants emissions from air pollution sources such as incinerators. This study attempts to predict the heavy metal pollutants dispersion emitted by an incineration plant impacting its surrounding area. Methods: Several scenarios of emission rates coupled with the meteorological conditions were investigated using the AERMOD dispersion model. Results: The maximum ground level concentration (GLC) of pollutants was within their respective air quality guidelines concentration and fall within the distance of 0.5 km from the stack. Conclusion: The pollutant concentration decreases with distances from the incineration plant, which does not seem to contribute a significant human exposure problem to the residence living more than 1.5 km away.   Keywords: Pollution dispersion, AERMOD, Incinerator, Heavy metals   https://ijph.tums.ac.ir/index.php/ijph/article/view/4860 https://ijph.tums.ac.ir/index.php/ijph/article/download/4860/4452