Air pollution from dust and equipment exhaust from earth moving equipment, is an issue that the construction sites cannot ignore. The use of different equipment  at the construction site either individually  or combined types resulted in air pollution of the surrounding environmental area . The results showed that all the investigated SME gave low concentration of Co2 ( less than 60%) for the total exhaust sample. It was found that there was no much differences between  the emissions of the different SMS in the Co level.
     All the investigated soil moving equipment exhausts had a free O2 range from 10.7 to 14% which was higher than the 7% of the standard level . The influence of the power increase on the exhaust emissions was noticed For far most equipment..
      In this research investigation  we explained that the level of impact is influenced by the materials used and the emissions that are released into the air, but it also increases relative to the scale, duration, and activities of the construction sites. There are also greater health and environmental risks if more than one activity takes place at the same time on the site and/or if there are sensitive populations or natural environments is close proximity to the construction site.