The Ministry of Infrastructure Development is committed to the implementation of an integrated system for monitoring air quality in maintenance and under construction projects in order to provide a healthy work environment and ensure the safety of those affected inside and outside the work place. The elements affecting the quality of outdoor air quality and permissible limits were identified as (Sulpher Dioxide (SO2), Carbon Monoxide (Co), Nitrogen Dioxide (NO2), Ozone -(O3), Total Suspended Particulate Matter (TSPM), Respirale Suspended Particulate Matter (PM 10))