Measuring Particulate Matter
Description
Do you know fine dust? The scientific nomenclature of fine dust consists of fine particulate matter(PM). The world is blanked with particulate matter. PM from China is now becoming a big problem. Although the major components of yellow dust are sand and materials from the earth's crust, various industrial pollutants, including mercury and cadmium, have also contributed to the dust problem because of the rapid industrialization of China. The smaller, reparable portion of PM has greater health effects. While yellow dust is of natural origin, PM is largely of man-made origin. I made it because I needed a PM meter. I have to know if I need to put on a mask.
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