The assassin hid under the mask for 10 days inhaling Beijing's air

After 10 days of breathing polluted air in Beijing, the mask turned black with lots of sharp toxic dust particles.

Associate Professor Luu Dung, who works at Beijing University of Chemical Technology, China has just done an experiment to observe dust masks used outside Beijing for 10 days, Sina reported on January 3.

Mr. Liu shared the image of a new mask on the right, while the one on the left was worn for 10 days outdoors.Visual observations often show that the mask turns black after a short time of use.

The image enlarged by 2,000 times under an electron microscope showed many large and small dust particles of different shapes lying on the fibers.

Mr. Liu said the experiment only helps to see solid dust particles, but for aerosols, the colloidal system of solid particles or droplets of air in the air, need to use another way.

The picture is causing a fever on the Chinese social network, causing many people to complain about pollution in the country. "This is an image after 10 days, not knowing how 10,000 days after it will look like , " a resident commented.

Beijing suffered from dust and fog for weeks.Experts recommend that people need to reduce outdoor activities and use protective measures when out.

Images of PM2.5 dust particles are magnified 1000 times under a microscope.PM2.5 is the main component of the toxic haze that is covering the Chinese capital of Beijing.

The sharp edges of a metallic blue PM2.5 dust are magnified under a microscope.According to scientists, PM2.5 dust can accumulate in the human lungs for a long time and cause serious damage to the respiratory system, which can be life threatening.