Dust type with a diameter of 10 μm called PM10 is fine dust. The most dangerous is the PM2.5 super fine dust.
"The polluted air has many small dust particles, the smaller the deeper particles will be. The small size dust particles, especially PM2.5 can go directly to the tissue, lung alveoli, upper respiratory tract, causing In the long run, they can lead to cardiovascular disease, stroke, pneumonia, and chronic bronchitis , " said Dr. Do Manh Cuong, Deputy Head of Community Health Department, Department of Management. Health Environment, Ministry of Health said.