Reducing environmental pollution has turned into one of the main concerns of human beings.
Air quality in cities depends on weather conditions and the level of emission of pollutants. The growth of technology and urbanization has led to a significant increase in the level of different kinds of pollutants. Government officials adopt special measures to prevent air pollution and environmental destruction to protect the general public from the dangers of pollutants.
Bahareh Azimi and Behzad Rayegani, members of the board of the Research Center of Environment and Sustainable Development, prefaced their article for the Persian daily Donya-e-Eqtesad with this note. The translation of the text follows