What we say. Walking is great for your health, but air pollution is putting the public at risk. The two pollutants of most concern are microscopic airborne particles, known as particulate matter (PM), and nitrogen dioxide (NO2).There is no safe level of particulate matter and the UK Government is breaking the law with current levels of air pollution.
An additional 650,000 people in the region could enjoy clean air by 2030 if a package of 25 Clean Air Measures is implemented starting today. 25 Clean Air Measures Air Pollution in Asia and the Pacific: Science-based Solutions uses the highest quality data available and state-of-the-art modelling to identify the most effective 25 measures to reduce air pollution.