Clean air is a prerequisite for a good quality of human life. It is vital for the wellbeing and sustainability of our environment, including the health of animals and plants. Clean air is also fundamental in preventing soil erosion and building deterioration.
However, air pollution in many urban areas worldwide has reached dangerous levels, causing severe damage to human health, animals and local infrastructure. Unfortunately, in many of these areas there continues to be a lack of general information available about the negative impacts of pollution. We therefore urge local communities to provide easier and better access to information and propose that citizens and visitors be welcomed with eye-catching pollution signs.