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Radon results by county
The RPII has measured almost 50,000 homes in Ireland since establishing its radon measurement programme in the early 1990s.
The following table gives summary results of the radon measurements carried out in each county up to 31st December 2011.
The national Reference Level for radon in the home is 200 Bq/m3.
This is the level at which it is recommended that you take action to reduce the level of radon in your home.
County
|
Total number of houses measured
|
Number of houses in categories of radon concentration |
Max (Bq/m3)
|
| 0-199 Bq/m3 |
200-799 Bq/m3 |
> 800 Bq/m3 |
| Carlow |
1140 |
925 |
190 |
11 |
2300 |
| Cavan |
440 |
420 |
10 |
0 |
800 |
| Clare |
4035 |
3570 |
390 |
78 |
3500 |
| Cork |
5375 |
4740 |
585 |
45 |
4500 |
| Donegal |
1420 |
1345 |
70 |
2 |
3400 |
| Dublin |
3330 |
3230 |
195 |
3 |
1400 |
| Galway |
5830 |
4585 |
1095 |
142 |
3700 |
| Kerry |
3660 |
3095 |
445 |
117 |
49000 |
| Kildare |
1250 |
1195 |
45 |
3 |
1100 |
| Kilkenny |
1315 |
1140 |
165 |
12 |
2400 |
| Laois |
560 |
535 |
20 |
0 |
600 |
| Leitrim |
390 |
365 |
25 |
1 |
1600 |
| Limerick |
1300 |
1200 |
90 |
3 |
1900 |
| Longford |
320 |
290 |
30 |
1 |
900 |
| Louth |
790 |
705 |
85 |
0 |
800 |
| Mayo |
4045 |
3375 |
615 |
52 |
6200 |
| Meath |
950 |
875 |
70 |
2 |
900 |
| Monaghan |
290 |
275 |
15 |
0 |
800 |
| Offaly |
765 |
750 |
15 |
0 |
800 |
| Roscommon |
695 |
625 |
65 |
3 |
1400 |
| Sligo |
2285 |
1735 |
460 |
88 |
5600 |
| Tipperary |
2410 |
2130 |
255 |
20 |
3300 |
| Waterford |
2390 |
1920 |
405 |
61 |
9700 |
| Wexford |
1725 |
1465 |
240 |
22 |
2900 |
| Westmeath |
680 |
625 |
55 |
0 |
700 |
| Wicklow |
2080 |
1740 |
315 |
25 |
16400 |
| Total |
49470 |
42855 |
5950 |
691 |
|
Notes
- The RPII database consists of 11,319 measurements undertaken as part of the National Radon Survey (NRS) and over 38,000 other measurements
- NRS measurements were made for a continuous 12-month period. All other measurements were made for a minimum period of three months and were seasonally adjusted.
- All measurements have been made in accordance with the RPII measurement protocol.
- Where there are duplicate measurements for any home, only the first measurement was used.
- All post-remediation measurements have been disregarded.
- Measurements made by other radon measurement services are not included.
- With the exception of homes with results greater than 800 Bq/m3 the data in this table are rounded down to the nearest 0 or 5. The true number of measurements is therefore slightly greater than the number shown.
- The maximum measurement for each county has been rounded to the nearest 100.
- Data compiled up to 31st December 2011.