Don't under-estimate PM2.5 risk, doctor saysDespite research establishing the risks associated with ultra-fine PM2.5 particulate matter, and the fact it is both odourless and invisible, many people fail to appreciate the damaging impact it has on their health, said Khate Sripratak, cardiologist and president of the Chest Disease Institute's medical staff organisation. PM2.5 also comprises ultra-fine particles that have a diameter of less than 0.1μm. He added that he agrees with the government's decision to halt construction, close schools and encourage people to work from home on days when the air pollution is particularly bad. For those who cannot afford air purifiers and proper N95 masks, using ordinary sanitary face masks is recommended. Medical staff should wear face masks to boost people's awareness of the need to protect themselves, he said.

Source: Bangkok Post January 25, 2020 23:37 UTC