Due to economic growth, the number of the cars used has increased in the resent years. This accompanies the degradation of air quality, especially in industrialized countries and urban environments due to traffic congestion . In many areas, the traffic related air pollution is the main reason of air quality degradation. The pollutant concentrations are related directly with the duration of the congestion . The World Health Organization (2010) has set the maximum values of pollutant concentrations but in many measurements, these values are exceeded.
The concept is to build a low-cost, low power consuming device to monitor the quality of air. Continue reading