Pollution

5 Things u need2know

1. Acid rain is produced when air pollution reacts with droplets of water in clouds. Rain then falls as weak acid.
   
2. If you suffer from asthma or other respiratory problems, exposure to high levels of air pollution may aggravate your symptoms.
3. Emissions from road transport contribute around 70 per cent of the air pollution in our towns and cities.
4. There are regulations to cut pollution from road vehicles and controls to prevent harmful emissions from factories and industry.
5. The UK's drinking water is safe because water companies remove a lot of pollutants before it pours through our taps. Other countries around the world are not so lucky, and diseases can be a real threat.