Discover the impacts of local air quality on our natural environment
Join in now. This survey can be done at any time of year.
Good air quality is essential for our health and for the wellbeing of our environment.
By taking part in the OPAL Air Survey you can find out about air quality near you and, using the OPAL Data Explorer, you can compare your results to other collected across the UK.
We can learn much about air quality from the species that live nearby.
The OPAL Air Survey is studying:
- lichens found on trees, and also
- tar spot fungus on sycamore leaves.
How to take part
To get started, print out copies of the documents in English below, or in Welsh, ideally in colour.
The OPAL Air Survey consists of two separate activities. If you want, you can take part in just one activity at a time.
Enter your results online
Once you've completed the survey, simply submit your results using the online form:
Downloads – everything you need to take part
Survey pack
- Air Survey Booklet (PDF, 1.5MB)
Information and recording sheet.
- Lichen Identification Guide (PDF, 767 KB)
Instructions and lichen guide.
- Tree Identification Guide (PDF, 1.8MB)
Learn to identify common UK trees.
Also available:
- Air Survey recording sheets (PDF, 124KB)
Easy-to-print recording sheets (black and white).
Looking for the Welsh language survey pack?
- Visit the Welsh Air Survey page
By downloading this survey you agree to the terms and conditions for the OPAL Air Survey
Group leaders and schools
Download our group leader support guide, example risk assessment, and our new printable black and white recording sheets:
Watch it
Did you know?
Lichens are two types of organisms living together, a fungus and an alga. The fungus makes the body that protects the alga and the alga provides the food for the fungus.
Learn about lichens
Explore our online guide to the lichens being studied in this survey.
- Visit the British Lichen Society website
Get to know trees
Don't know your beech from your birch? Browse our photo gallery of common UK trees.
Children's activity sheets
Become a pollution buster with the lichen and climate activity sheets available in our Kids Zone.
Air Survey Results
Explore the results of the OPAL Air Survey using the OPAL Data Explorer.