Q: What % of Londoners live in areas exceeding the World Health Organisation recommended pollution levels?
Q: What is PM2.5?
A: PM2.5 refers to atmospheric particulate matter (PM) that have a diameter of less than 2.5 micrometers, which is about 3% the diameter of a human hair. Commonly written as PM2.5, particles in this category are so small that they can only be detected with an electron microscope. Since they are so small and light, fine particles tend to stay longer in the air than heavier particles. This increases the chances of humans and animals inhaling them into the bodies.
Q: Which of the following can you do to help decrease levels of pollution?
- Reduce car journeys.
- Keep house temperature down.
- Walk more.
- Campaign for change.
- All of the above.
A: All of the above. Please do your best not to add to the pollution.