Air quality is a very significant environmental problem. Atmospheric pollution affects the quality of life significantly, especially in urban agglomerations. Therefore, as future specialists in this field, we have made an attempt to estimate the degree of air pollution in our school and in its vicinity. The method we used was the lichen scale, you can find out more about this in the presentation we invite you to see - class III T1 with a teacher, Dr. Dorota Smalcerz.