UK & Ireland Radiation Monitor
Live gamma radiation levels from official monitoring networks near the UK — Ireland’s EPA (including the east coast facing the Irish Sea and Sellafield) and Germany’s BfS and Estonia’s Environment Agency (covering the Baltic and the Russian border) — each station compared with its own normal level, with checks that stop rain, faulty probes or stale data raising a false alarm.
- Every station vs normal
- False-alarm checks
- Nuclear sites
Every station against its own normal
updated Tue 20 Oct, 15:00 · click a dotEach station is compared with the median of its own last 24 normal hourly readings, because natural background varies a lot from place to place (granite areas read higher). Germany’s network learns each station’s normal over its first six hours; Ireland’s comes from the EPA’s own month of readings.
Furthest above normal
right now| Station | Now | Normal | vs normal |
|---|---|---|---|
| Hörnum / Sylt · Germany | 0.080 | 0.066 | 1.21× |
| Leck · Germany | 0.083 | 0.074 | 1.12× |
| Cahersiveen · Ireland | 0.055 | 0.050 | 1.09× |
| Löwenstedt · Germany | 0.064 | 0.059 | 1.08× |
| Nebel / Amrum · Germany | 0.079 | 0.073 | 1.08× |
| Wrixum / Föhr · Germany | 0.084 | 0.078 | 1.08× |
| Sittensen · Germany | 0.087 | 0.081 | 1.07× |
| Schafflund · Germany | 0.081 | 0.076 | 1.07× |
| Königswartha · Germany | 0.082 | 0.077 | 1.06× |
| Hollenstedt · Germany | 0.082 | 0.077 | 1.06× |
| Linz am Rhein · Germany | 0.099 | 0.093 | 1.06× |
| Waghäusel OT Wiesental · Germany | 0.119 | 0.112 | 1.06× |
Values in micro-sieverts per hour (µSv/h). Small rises (1.2–1.5×) are common during and after rain.
Ireland — all stations
EPA · hourly, about 3 hours behind| Station | Now | Normal | Reading |
|---|---|---|---|
| Aiken Barracks, Dundalk | 0.077 | 0.076 | Tue 20 Oct, 12:00 |
| Ballyhaise | 0.063 | 0.066 | Tue 20 Oct, 12:00 |
| Belmullet | 0.053 | 0.051 | Tue 20 Oct, 12:00 |
| Cahersiveen | 0.055 | 0.050 | Tue 20 Oct, 12:00 |
| Carnagh Range, Athlone | 0.039 | 0.040 | Tue 20 Oct, 12:00 |
| Carnsore Point | 0.050 | 0.052 | Tue 20 Oct, 12:00 |
| Clonskeagh | 0.063 | 0.066 | Tue 20 Oct, 12:00 |
| Coolgreany | 0.070 | 0.069 | Tue 20 Oct, 12:00 |
| Finner Camp | 0.040 | 0.040 | Tue 20 Oct, 12:00 |
| Gormanston Camp | 0.052 | 0.053 | Tue 20 Oct, 12:00 |
| Gurteen | 0.053 | 0.056 | Tue 20 Oct, 12:00 |
| Haulbowline Naval Base | 0.060 | 0.060 | Tue 20 Oct, 12:00 |
| Inniscarra | 0.081 | 0.082 | Tue 20 Oct, 12:00 |
| Johnstown Castle | 0.071 | 0.072 | Tue 20 Oct, 12:00 |
| Kilkenny | 0.062 | 0.059 | Tue 20 Oct, 11:00 |
| Renmore Barracks | 0.069 | 0.069 | Tue 20 Oct, 12:00 |
| SETU, Waterford | 0.056 | 0.057 | Tue 20 Oct, 12:00 |
| Westmeath_Mullingar | 0.048 | 0.048 | Tue 20 Oct, 12:00 |
Estonia — all stations
Environment Agency · hourly, about 2 hours behind| Station | Now | Normal | Reading |
|---|---|---|---|
| Kunda | 0.053 | 0.053 | Tue 20 Oct, 14:00 |
| Kuusiku | 0.043 | 0.044 | Tue 20 Oct, 13:00 |
| Lääne Nigula | 0.046 | 0.046 | Tue 20 Oct, 13:00 |
| Mustvee | 0.028 | 0.028 | Tue 20 Oct, 14:00 |
| Narva | 0.086 | 0.087 | Tue 20 Oct, 14:00 |
| Pärnu | 0.040 | 0.040 | Tue 20 Oct, 14:00 |
| Ristna | 0.038 | 0.038 | Tue 20 Oct, 13:00 |
| Sõrve | 0.028 | 0.027 | Tue 20 Oct, 14:00 |
| Tallinna | 0.033 | 0.034 | Tue 20 Oct, 13:00 |
| Tõravere | 0.056 | 0.056 | Tue 20 Oct, 14:00 |
| Türi | 0.053 | 0.053 | Tue 20 Oct, 13:00 |
| Valga | 0.067 | 0.067 | Tue 20 Oct, 14:00 |
| Viljandi | 0.045 | 0.045 | Tue 20 Oct, 14:00 |
| Väike-Maarja | 0.051 | 0.052 | Tue 20 Oct, 13:00 |
| Võru | 0.062 | 0.062 | Tue 20 Oct, 14:00 |
The last 30 days
hover for valuesIreland — network average and highest station (µSv/h)
Estonia — network average and highest station (µSv/h)
Germany — typical station and the top 5% (µSv/h)
Recorded by osir every hour since 19 Oct 2026, so this fills in over the coming weeks.
What the numbers mean
These stations measure gamma dose rate in micro-sieverts per hour (µSv/h). Natural background is usually 0.05–0.2 µSv/h, depending on the rock and soil — granite areas read higher. Rain briefly raises readings by washing natural radon from the air; rises of up to about 0.1 µSv/h are normal. A large nuclear release would show as many neighbouring stations rising well above their own normal for hours.
How alerts work: a station counts only if it reads at least double its own normal and 0.2 µSv/h above it, on two different hourly readings in a row, with neighbours agreeing (Ireland: one within 120 km; Germany: two within 75 km). Readings that are too old, and networks with too few fresh stations, are ignored. A whole-network jump is treated as a data error.
In a radiation emergency in the UK the official advice is go in, stay in, tune in: get inside, close windows and doors, and follow advice from gov.uk and local radio. In Ireland, follow the EPA and gov.ie.
Source & limits
Readings from the EPA Ireland national radiation monitoring network (hourly, published about 3 hours late) and Germany’s BfS ODL network (hourly; data licence dl-de/by-2-0, © Bundesamt für Strahlenschutz) and the Estonian Environment Agency (15 stations, hourly, about 2 hours behind). Updated every 30 minutes (Ireland and Estonia hourly). France’s, the Netherlands’ and Norway’s networks don’t publish an open live feed.
The UK publishes no live readings. Its national network (RIMNet) isn’t public, and the European EURDEP system shares only area averages. Ireland’s east coast and Germany would show a large release crossing the region, but not a small incident inside the UK. This page is informational, not an official warning service.
Related: the Global Situation Monitor (radiation alerts and map layer) and the UK Health Status Monitor.