 Everyone in Wales has the right to breathe clean air. This is why we've asked you to drive at 50 miles per hour on some roads to lower nitrogen dioxide levels. Some of our busiest roads have high levels of NO2. NO2 is polluting our planet and making us ill. By changing the speed limit to 50 miles per hour in trials, we've already lowered NO2 levels, which is why we've decided to make these changes permanent. Road markings and signs will stay the same in the affected areas. We want to make Wales a safer place with cleaner air for everyone, and to do this we need to act now. Driving at 50 will help us protect our families from serious illnesses like heart disease, lung cancer and asthma. It will help us protect our planet from pollution. By sticking to the 50 mile per hour limit, we can all help to protect our future.