What have you done today for clean air?

Hello! We are a primary school from Sieradz, a small town with the population of about 50 000 people, in the centre of Poland.
The main aim of the project, that we would like to be a coordinator of, is to study the influence of weather elements and human activity on air quality as well as the influence of polluted air on our health. We would like to look for effective ways to clean the air and shape pro-ecological habits among our students.
We are planning to engage students aged 12-15.