Wireless sensor networks (WSN) have been involved in different applications including monitoring many environmental phenomena such as air quality assessment, forest fire monitoring, flood rivers control.. In this paper, a WSN architecture where nodes are equipped with gas , temperature and dust sensors and Arduino-uno as microcontroller have been designed for air quality monitoring for some sensible area in Annaba City East of Algeria. The previous design included several units mainly: MSP430 Microcontroller, Gas and dust sensors, and the current regulator circuit. The new design is based on Arduino-Uno as micro-system. Comparing of normal gas levels for the clean air, the obtained results indicate that there is a big difference in the gas levels of both gases (LPG , NO2 and CO) which obtained from the several tests. However, the acquired results for the air quality control in some areas in Annaba city show no risky situation to be considered for further actions. In this work we cover the field of Air quality monitoring electronic Nodes design and wireless transmission of fusion data. Then A GUI has been designed for simulation of the WSN in controlling the environment air Quality. Tests are encouraging; the flexibility off the shelf components and the ease of design facilitates the implementation of this system.