Survey data regarding perceived air quality in Australia, Brazil, China, Ghana, India, Iran, Italy, Norway, South Africa, United States before and during Covid-19 restrictions.

Abstract

The dataset deals with the air quality perceived by citizens before and during the enforcement of COVID-19 restrictions in ten countries around the world: Australia, Brazil, China, Ghana, India, Iran, Italy, Norway, South Africa and the United States. An online survey conveniently translated into Chinese,

English, Italian, Norwegian, Persian, Portuguese collected in- formation regarding the perceived quality of air pollution ac- cording to a Likert scale. The questionnaire was distributed

between 11-05-2020 and 31-05-2020 and 9 394 respondents

took part. Both the survey and the dataset (stored in a Mi- crosoft Excel Worksheet) are available in a public repository.

The collected data offer the people’s subjective perspectives related to the objective improvement in air quality occurred during the COVID-19 restrictions. Furthermore, the dataset can be used for research studies involving the reduction in

air pollution as experienced, to a different extent, by popula- tions of all the ten countries.