Community soil pH observations

This map presents crowdsourced soil observations from users of the UK Soil Observatory and the mySoil mobile app classified according to soil pH. This citizen science dataset focuses on the United Kingdom, though contains additional observations from across Europe and the rest of the world.

Testing the pH of your soil is fairly easy to do. It does require a simple kit that you can buy from hardware stores or garden centres. Each kit will come with its own instructions that will guide you through the process of sampling and testing.

Your testing kit will tell you a pH on a scale from 1 (very strongly acidic) to 14 (very strongly alkaline). Most soils fall in the pH range 3 to 9. Choose the closest value from our pH ranges that matches the value shown by your kit.

It is hoped that these crowdsourced records can be used to validate and improve our own data holdings and lead to the creation of new community data products.

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License.

Creative Commons
Community soil pH observations

Map legend

Key Crowdsourced Acidity
Highly Acidic
Moderately Acidic
Slightly Acidic
Slightly Alkaline
Moderately Alkaline
Highly Alkaline
Not entered
Title Community soil pH observations
Source UK Soil Observatory and mySoil user community
Enquiries BGS Enquiries
Scale(s) Point data
Coverage Main focus is on UK, although European and worldwide data are available
Format GIS spatial point data
Price A free WMS service is available. A free smartphone app is also available.
Uses Local to national use with some European and worldwide data
Downloads None at this time (we are currently compiling the data to make it available under Creative Commons Attribution-NonCommercial 3.0 Unported License)
Map viewer View in UKSO Map Viewer.
WMS link
Images High resolution | low resolution