The coronavirus-19 (COVID-19) pandemic led to government interventions to limit the
spread of the disease which are unprecedented in recent history; for example, stay at home …

The COVID-19 pandemic has given a chance for researchers and policymakers all over the
world to study the impact of lockdowns on air quality in each country. This review aims to …

The COVID-19 pandemic has led countries to take action, which has included practicing
social distancing or lockdown. Many cities are experiencing air quality improvements due to …

The health emergency linked to the spread of COVID‐19 has led to important reduction in
industrial and logistics activities, as well as to a drastic changes in citizens' behaviors and …

The outbreak of the COVID-19 pandemic has emerged as a serious public health threat and
has had a tremendous impact on all spheres of the environment. The air quality across the …

High level of particulate matter (PM) concentrations are a major environmental concern in
Seoul, South Korea, especially during winter and early spring. Sulfate is a major component …

The first confirmed case of COVID-19 in Colombia was reported on March 6, 2020. For this
reason, on March 25, preventive isolation was declared mandatory. These measures …

It is challenging to estimate local emission conditions of a downwind area solely based on
concentrations in the downwind area. This is because air pollutants that have a long …

A large-scale emission reduction during the COVID-19 outbreak provide a unique
opportunity for exploring an effective ozone (O 3) and fine particulates (PM 2.5) co-control …

The impact of the reduced atmospheric emissions due to the COVID-19 lockdown on
ambient air quality in the Po Valley of Northern Italy was assessed for gaseous pollutants …