Calidad de aire en México y el mundo

Data from the Centre for Research on Energy and Clean Air (Crea) shows concentrations of fine particles (PM2.5) and nitrogen dioxide (NO2) across China are now at the same levels as one year earlier. At the height of the country’s coronavirus response in early March, NO2 levels were down by 38% from 2019 and levels of PM2.5 were down by 34%.

Fuente:

https://www.theguardian.com/environment/2020/jun/03/air-pollution-in-china-back-to-pre-covid-levels-and-europe-may-follow?utm_campaign=Hot+News&utm_medium=email&_hsmi=89039732&_hsenc=p2ANqtz-_390CLInAVVfL6S6T2LH8-tAfka6yllrv-74xT-W5DHXavRZ7JrZylNDVSzI6ZikzgGHjphNFi-QgavWr5TbsQX_3vCw&utm_content=89039732&utm_source=hs_email