Today, the human population of cities has reached its highest level and as a result, air quality in cities has started to have a significant effect on human health. Air pollution exceeds danger limits in terms of human health especially in many cities where unplanned urbanisation takes place and either threatens human health or decreases life quality. The parks inside the city are very important for the healthy development of cities. These areas have many different functions for cities such as recreation, ecology and land organisation. One of these functions is their effect on the air quality of the city. In this study, the particulate matter (0.3, 0.5 and 5 µm dimensions) and carbon dioxide (CO2) amounts were measured and evaluated in Kastamonu city. Measurement results obtained from 7 regions in the Kastamonu city with different properties were evaluated and comparisons were made in terms of air quality.