Air pollution linked to raised Covid-19 death risk
2021-06-16

“Patterns in Covid-19 death rates generally mimic patterns in both high population density and high ’particulate matter’ PM2.5 exposure areas,“ the Harvard University report says https://www.bbc.com/news/health-52351290

If we have air quality monitors to detect PM2.5 air pollution any time and any place, it shall reduce the risks from air pollution.
https://www.curiejet.com/en/product/air-quality-monitor