The novel coronavirus disease (COVID-19) spreads rapidly around the world, and has limited people’s outdoor activities substantially. Air quality is therefore expected to be improved due to reduced anthropogenic emissions. However, in some megacities it has not been improved as expected and severe haze episodes still occurred during the COVID-19 lockdown.
Click here for original story, A chemical cocktail of air pollution in Beijing, China during COVID-19 outbreak
Source: Phys.org