The effect of different meteorological factors on the concentrations of air pollutants.

The concentration of harmful air pollutants is increasing and one of the reasons is meteorological factors. It is necessary to identify how much influence factors like wind speed, atmospheric pressure, temperatures, and humidity have on the spread of air pollutants. Here we review studies that show a correlation between meteorological factors and synthesize how such factors influence the concentration of harmful air pollutants. In most cases, we saw a negative correlation between air pollutant concentrations and meteorological factors, with some exceptions: ozone increased as temperature increased, and atmospheric pressure increases caused an increase in most pollutants. Different regions and seasons change the meteorology which affects the concentration of pollutants. For instance, in mountainous terrain, the increase in altitude leads to a lower pollutant concentration than the base of the mountain. It is critical to understand how meteorology impacts air pollutant concentration as climate change increases.