Sudden killer behind tens of thousands of premature deaths in the US
Scientists at the Massachusetts Institute of Technology have concluded that tens of thousands of premature deaths in the United States were caused by tiny particles in the smoke of forest and agricultural fires.
And the journal Environmental Research Letters notes that in order to estimate the amount of PM2 in 2003 and 2018 according to their natural or anthropogenic source, using an atmospheric chemical transport model, the effect of fires on the concentration of these particles in the atmosphere can be calculated. .
It became clear to the researchers that agricultural fires and forest fires mainly contributed to the increase in PM2.5 concentrations from wildfires that occurred due to human activities, since the smoke from these fires increased the concentration of pollutants from 5 percent in 2003 to 10 percent in 2018.
And both fire sources have been shown to be responsible for over 80 percent of population exposure to PM2.
According to the researchers, since this effect is associated with human-induced fires, it can be significantly reduced by taking quick and drastic measures and measures to prevent the occurrence of agricultural fires due to climatic conditions. However, man-made wildfires are difficult to fight because they are random and unplanned.
Source: Linta. RU