According to a recent research smart phones will soon detect air pollution. A new low-cost method has been found for detecting nitrogen dioxide – a significant air pollutant.
According to the World Health Organisation, nitrogen dioxide (NO2) contributes to more than seven million deaths worldwide each year. The gas increases the risk of respiratory disorders in children and can severely affect the elderly in particular.
Project leader Professor Kourosh Kalantar-zadeh, from RMIT’s Centre for Advanced Electronics and Sensors stated that the negative impact of nitrogen dioxide could be prevented by access to personalised, highly selective, sensitive and reliable monitoring systems that could detect harmful levels of the gas at early stage.
The main contributors of nitrogen dioxide are the burning of fossil fuels, particularly in coal-fired power stations and diesel engines.
Kalantar-zadeh developed the new method for sensing nitrogen dioxide with other RMIT researchers and colleagues from the Chinese Academy of Sciences.
The research was published in the journal ACS Nano.