Air quality plays a key role in people’s health and well-being. Poor air quality can lead to a variety of health problems such as respiratory and cardiovascular diseases. Relevant factors for air quality include pollutants such as particulate matter, nitrogen dioxide and ozone, which are primarily produced by industry, traffic and combustion processes. The EU has set strict limits for air pollutants to protect public health and prevent environmental damage. Adherence with these limits is crucial to ensure good air quality.