Small particle emissions can be anything, diesel cars emissions, stone dust and flour from bakeries. All small particles are bad for the lungs. Long term exposure of air pollution will lead to health problems.
Although all small particles are bad for the lungs, there must be a difference in their effects on brain and organs, depending on what those small particles are made of since PM 2.5 particles pass through lung lining and into the blood to be distributed around the body.
Small particle emissions can be anything, diesel cars emissions, stone dust and flour from bakeries. All small particles are bad for the lungs. Long term exposure of air pollution will lead to health problems.