Environment in Derry City and Strabane
DistrictNorth west Northern Ireland. 152,659 people (mid-2025 estimate) in 1,251 square kilometres.
4 layers about environment for Derry City and Strabane, each at the level its publisher released it, with its own date and source.
Radon Affected Area by ward
Worked out by Open Index · 2022
Derry City and Strabane’s 40 wards range from 78% to 100%.
Radon potential
1 km gridPublished as points, so there is no single figure for Derry City and Strabane. The map shows each one.
People in radon Affected Area squares
CouncilAbout 99% of people in Derry City and Strabane live in a 1 km square that the radon atlas marks as a radon Affected Area.
Across the UK the figure is 44%.
Worked out by Open Index from the UKHSA and BGS radon atlas and census output areas.
- Against Northern Ireland
- 2.1 times48%
- Against the UK
- 2.3 times44%
Nitrogen dioxide (NO2)
1 km gridPublished as points, so there is no single figure for Derry City and Strabane. The map shows each one.
Fine particles (PM2.5)
1 km gridPublished as points, so there is no single figure for Derry City and Strabane. The map shows each one.