Symbol of the Biosphere, the logo of the Biosphere Institute was designed to acknowledge that humans belong to this singular organism.
List of data         Methodology         Legal limit for radiation dose

Major accident in one of the four reactors of Tricastin NPP (4 × 2785 MWth)

Possible impact on the inhabitants of :

Villefranche‑sur‑Saône (184 km) FRA

Maps of Individual committed effective doses received by inhabitants during the passage of the radioactive cloud (inhalation):
1° Each row of the table represents a different meteorological situation.
2° The hyperlink enables access to the related map.
Maps visible with free Google Earth software! Alternatively, after downloading a map file in KML format, go to google.com/earth/, launch Google Earth, click on "project" then on "open"!
Rank, NPP code, date mSv
1        TRI_2017-02-15 230.27
2        TRI_2017-02-26 186.65
3        TRI_2017-01-02 108.40
4        TRI_2017-01-29 104.22
5        TRI_2017-02-11 99.87
6        TRI_2017-01-01 72.60
7        TRI_2017-05-12 70.11
8        TRI_2020-11-09 65.14
9        TRI_2021-03-03 62.78
10        TRI_2020-12-15 44.71
11        TRI_2020-12-17 43.55
12        TRI_2020-10-22 43.49
13        TRI_2017-02-10 42.72
14        TRI_2021-04-10 39.58
15        TRI_2018-04-14 38.98
16        TRI_2017-07-05 38.70
17        TRI_2017-02-02 38.39
18        TRI_2020-01-17 38.10
19        TRI_2020-11-25 35.90
20        TRI_2018-12-19 35.38
21        TRI_2018-01-10 35.12
22        TRI_2021-02-16 34.14
23        TRI_2020-01-15 33.44
24        TRI_2021-12-23 32.48
25        TRI_2021-04-28 31.86
26        TRI_2017-03-03 31.29
27        TRI_2020-07-31 30.17
28        TRI_2020-10-25 29.86
29        TRI_2017-05-06 25.87
30        TRI_2021-10-20 25.19
31        TRI_2021-12-24 24.53
32        TRI_2018-11-11 23.62
33        TRI_2020-11-12 23.58
34        TRI_2018-05-25 23.43
35        TRI_2021-05-10 22.88
36        TRI_2020-01-16 22.82
37        TRI_2017-06-26 22.41
38        TRI_2020-12-19 22.25
39        TRI_2017-02-01 22.03
40        TRI_2021-03-30 21.98
41        TRI_2020-09-04 21.96
42        TRI_2020-01-26 21.94
43        TRI_2018-11-07 21.59
44        TRI_2021-03-29 21.05
45        TRI_2018-06-11 20.89
46        TRI_2021-10-24 20.47
47        TRI_2018-04-10 20.45
48        TRI_2021-04-21 20.44
49        TRI_2020-02-15 20.32
50        TRI_2021-09-14 20.32
51        TRI_2020-08-10 19.94
52        TRI_2017-12-27 19.85
53        TRI_2017-07-06 19.54
54        TRI_2020-01-06 18.86
55        TRI_2017-09-28 18.75
56        TRI_2020-12-04 18.44
57        TRI_2018-11-10 18.40
58        TRI_2020-10-02 18.28
59        TRI_2020-07-30 18.12
60        TRI_2021-06-27 18.01
61        TRI_2021-09-09 18.00
62        TRI_2017-11-04 17.82
63        TRI_2020-06-13 17.72
64        TRI_2018-11-17 17.66
65        TRI_2020-11-15 17.52
66        TRI_2017-05-11 17.34
67        TRI_2018-05-24 17.23
68        TRI_2018-11-25 17.22
69        TRI_2018-06-06 16.82
70        TRI_2018-09-26 16.45
71        TRI_2021-01-20 15.91
72        TRI_2018-04-03 15.74
73        TRI_2018-05-29 15.66
74        TRI_2017-03-30 15.59
75        TRI_2018-04-29 15.30
76        TRI_2017-09-27 15.25
77        TRI_2018-03-30 15.14
78        TRI_2021-01-21 15.08
79        TRI_2020-03-02 14.85
80        TRI_2020-04-08 14.61
81        TRI_2020-10-23 14.56
82        TRI_2021-10-01 14.56
83        TRI_2018-03-05 14.42
84        TRI_2021-02-09 14.12
85        TRI_2018-11-30 13.97
86        TRI_2017-11-23 13.75
87        TRI_2018-10-14 13.51
88        TRI_2017-05-29 13.48
89        TRI_2020-03-20 13.35
90        TRI_2017-04-30 13.32
91        TRI_2018-11-20 13.21
92        TRI_2020-09-20 13.08
93        TRI_2020-12-18 13.00
94        TRI_2018-10-13 12.74
95        TRI_2020-08-11 12.71
96        TRI_2021-04-24 12.66
97        TRI_2018-04-13 12.63
98        TRI_2017-10-19 12.59
99        TRI_2021-01-22 12.51
100        TRI_2017-02-04 12.47
101        TRI_2018-04-08 12.39
102        TRI_2018-06-30 11.98
103        TRI_2021-02-05 11.82
104        TRI_2017-04-08 11.50
105        TRI_2020-04-05 11.43
106        TRI_2020-12-08 11.36
107        TRI_2017-02-05 11.13
108        TRI_2021-03-02 10.96
109        TRI_2020-12-07 10.94
110        TRI_2020-10-21 10.75
111        TRI_2021-06-01 10.66
112        TRI_2020-09-14 10.44
113        TRI_2020-03-16 10.11
114        TRI_2021-02-21 10.01
115        TRI_2021-12-22 9.87
116        TRI_2017-07-31 9.58
117        TRI_2017-11-01 9.50
118        TRI_2020-05-04 9.46
119        TRI_2017-10-17 9.37
120        TRI_2017-05-18 9.17
121        TRI_2018-03-08 9.10
122        TRI_2020-06-01 8.99
123        TRI_2021-06-28 8.94
124        TRI_2020-09-22 8.90
125        TRI_2018-10-05 8.88
126        TRI_2021-02-06 8.74
127        TRI_2021-01-19 8.65
128        TRI_2017-05-26 8.60
129        TRI_2020-11-07 8.51
130        TRI_2018-05-31 8.50
131        TRI_2017-11-02 8.38
132        TRI_2017-06-20 7.96
133        TRI_2021-03-31 7.92
134        TRI_2021-10-29 7.77
135        TRI_2018-03-10 7.72
136        TRI_2021-06-19 7.70
137        TRI_2020-04-10 7.62
138        TRI_2020-03-15 7.59
139        TRI_2017-08-01 7.44
140        TRI_2018-08-12 7.36
141        TRI_2017-07-17 7.33
142        TRI_2020-10-20 7.29
143        TRI_2018-05-12 7.26
144        TRI_2021-09-07 7.21
145        TRI_2021-05-09 7.19
146        TRI_2018-09-16 7.17
147        TRI_2020-01-12 7.00
148        TRI_2017-06-01 6.98
149        TRI_2018-06-09 6.96
150        TRI_2018-03-24 6.86
151        TRI_2017-08-29 6.85
152        TRI_2018-09-25 6.74
153        TRI_2017-04-24 6.56
154        TRI_2017-07-04 6.56
155        TRI_2021-02-23 6.48
156        TRI_2018-04-07 6.38
157        TRI_2020-09-15 6.25
158        TRI_2020-12-05 6.21
159        TRI_2021-05-15 6.19
160        TRI_2018-07-01 6.16
161        TRI_2020-01-13 6.13
162        TRI_2020-10-19 6.08
163        TRI_2020-05-31 5.83
164        TRI_2021-10-18 5.83
165        TRI_2020-04-06 5.82
166        TRI_2020-12-31 5.70
167        TRI_2021-10-19 5.70
168        TRI_2017-10-18 5.54
169        TRI_2017-03-27 5.50
170        TRI_2018-08-09 5.49
171        TRI_2020-06-24 5.49
172        TRI_2020-06-25 5.49
173        TRI_2020-12-20 5.49
174        TRI_2020-04-27 5.45
175        TRI_2020-08-13 5.45
176        TRI_2021-09-06 5.44
177        TRI_2020-01-14 5.43
178        TRI_2017-02-12 5.31
179        TRI_2018-04-06 5.22
180        TRI_2021-06-02 5.22
181        TRI_2018-06-03 5.12
182        TRI_2021-04-26 5.09
183        TRI_2017-01-28 5.02
184        TRI_2020-03-18 4.98
185        TRI_2017-07-19 4.95
186        TRI_2018-04-21 4.91
187        TRI_2018-05-07 4.89
188        TRI_2021-04-01 4.66
189        TRI_2020-03-24 4.61
190        TRI_2017-03-15 4.60
191        TRI_2017-09-29 4.57
192        TRI_2018-06-04 4.50
193        TRI_2017-08-14 4.47
194        TRI_2018-03-04 4.45
195        TRI_2017-09-26 4.37
196        TRI_2017-05-17 4.32
197        TRI_2021-06-18 4.28
198        TRI_2021-10-03 4.24
199        TRI_2020-03-23 4.23
200        TRI_2021-10-02 4.20
201        TRI_2021-09-05 4.18
202        TRI_2018-11-05 4.17
203        TRI_2021-06-16 4.17
204        TRI_2018-09-17 4.13
205        TRI_2021-02-14 4.04
206        TRI_2017-05-04 3.91
207        TRI_2017-08-02 3.91
208        TRI_2017-01-31 3.89
209        TRI_2017-04-23 3.89
210        TRI_2021-06-21 3.86
211        TRI_2018-08-08 3.85
212        TRI_2017-02-03 3.82
213        TRI_2017-05-16 3.80
214        TRI_2021-10-17 3.78
215        TRI_2018-12-13 3.77
216        TRI_2020-10-03 3.68
217        TRI_2020-11-18 3.67
218        TRI_2021-06-20 3.67
219        TRI_2020-05-10 3.65
220        TRI_2017-06-13 3.64
221        TRI_2018-04-20 3.63
222        TRI_2020-12-16 3.55
223        TRI_2017-12-11 3.51
224        TRI_2018-05-26 3.50
225        TRI_2020-02-06 3.50
226        TRI_2020-09-19 3.49
227        TRI_2017-10-14 3.48
228        TRI_2017-08-24 3.41
229        TRI_2021-08-14 3.38
230        TRI_2021-09-24 3.31
231        TRI_2021-05-31 3.26
232        TRI_2020-04-15 3.25
233        TRI_2020-03-19 3.22
234        TRI_2020-02-07 3.19
235        TRI_2020-01-02 3.15
236        TRI_2021-02-15 3.10
237        TRI_2018-08-06 3.08
238        TRI_2018-11-09 3.08
239        TRI_2021-09-13 3.05
240        TRI_2020-11-27 3.03
241        TRI_2021-08-21 3.01
242        TRI_2017-10-13 3.00
243        TRI_2021-04-25 2.99
244        TRI_2017-12-10 2.97
245        TRI_2021-06-26 2.95
246        TRI_2021-06-04 2.92
247        TRI_2020-02-29 2.90
248        TRI_2020-04-11 2.90
249        TRI_2017-05-22 2.89
250        TRI_2018-07-27 2.88
251        TRI_2020-04-01 2.88
252        TRI_2018-11-12 2.83
253        TRI_2018-03-14 2.80
254        TRI_2021-04-08 2.79
255        TRI_2020-07-27 2.76
256        TRI_2020-09-18 2.75
257        TRI_2021-09-08 2.75
258        TRI_2018-06-02 2.69
259        TRI_2018-02-06 2.67
260        TRI_2018-09-10 2.61
261        TRI_2017-04-07 2.59
262        TRI_2020-04-04 2.59
263        TRI_2018-04-02 2.57
264        TRI_2020-07-29 2.53
265        TRI_2021-09-23 2.51
266        TRI_2017-12-06 2.50
267        TRI_2018-11-21 2.45
268        TRI_2020-12-14 2.45
269        TRI_2018-04-19 2.42
270        TRI_2021-02-25 2.41
271        TRI_2017-06-08 2.40
272        TRI_2021-10-31 2.40
273        TRI_2021-04-23 2.39
274        TRI_2018-06-05 2.38
275        TRI_2018-08-28 2.38
276        TRI_2021-03-06 2.38
277        TRI_2021-12-21 2.29
278        TRI_2018-03-02 2.26
279        TRI_2018-04-22 2.26
280        TRI_2018-04-04 2.23
281        TRI_2021-09-15 2.23
282        TRI_2020-08-07 2.22
283        TRI_2018-08-07 2.17
284        TRI_2020-08-20 2.16
285        TRI_2017-08-28 2.14
286        TRI_2020-01-23 2.12
287        TRI_2021-06-03 2.12
288        TRI_2020-08-19 2.11
289        TRI_2021-06-17 2.09
290        TRI_2017-12-07 2.05
291        TRI_2018-11-13 2.05
292        TRI_2020-10-18 2.05
293        TRI_2020-11-14 2.04
294        TRI_2020-08-15 1.94
295        TRI_2017-05-27 1.93
296        TRI_2018-06-07 1.93
297        TRI_2018-06-29 1.93
298        TRI_2018-10-30 1.88
299        TRI_2020-01-25 1.85
300        TRI_2018-09-27 1.81
301        TRI_2020-04-26 1.81
302        TRI_2017-10-11 1.79
303        TRI_2018-09-28 1.76
304        TRI_2017-05-05 1.67
305        TRI_2018-10-04 1.67
306        TRI_2020-11-13 1.59
307        TRI_2020-06-11 1.54
308        TRI_2020-04-25 1.53
309        TRI_2018-03-01 1.51
310        TRI_2017-05-21 1.48
311        TRI_2020-01-24 1.47
312        TRI_2021-07-24 1.47
313        TRI_2020-08-09 1.46
314        TRI_2017-07-09 1.44
315        TRI_2020-10-04 1.42
316        TRI_2018-01-24 1.40
317        TRI_2018-04-27 1.40
318        TRI_2020-11-06 1.39
319        TRI_2018-04-05 1.38
320        TRI_2018-01-25 1.37
321        TRI_2020-05-07 1.37
322        TRI_2017-05-09 1.36
323        TRI_2021-03-26 1.35
324        TRI_2021-05-30 1.34
325        TRI_2018-02-28 1.33
326        TRI_2018-06-01 1.33
327        TRI_2020-05-08 1.31
328        TRI_2017-06-27 1.30
329        TRI_2020-12-21 1.29
330        TRI_2017-04-01 1.26
331        TRI_2021-07-22 1.26
332        TRI_2018-10-11 1.24
333        TRI_2021-07-23 1.24
334        TRI_2021-02-24 1.23
335        TRI_2021-03-01 1.20
336        TRI_2020-10-31 1.18
337        TRI_2021-02-18 1.18
338        TRI_2020-05-13 1.16
339        TRI_2021-08-12 1.14
340        TRI_2018-11-24 1.13
341        TRI_2017-05-30 1.11
342        TRI_2017-07-07 1.10
343        TRI_2017-05-03 1.09
344        TRI_2017-11-22 1.04
345        TRI_2018-09-30 1.04
346        TRI_2018-10-27 1.04
347        TRI_2017-01-30 0.99
348        TRI_2017-01-25 0.96
349        TRI_2018-05-11 0.95
350        TRI_2018-08-05 0.93
351        TRI_2021-04-29 0.93
352        TRI_2020-03-25 0.92
353        TRI_2017-07-08 0.89
354        TRI_2021-02-22 0.88
355        TRI_2017-12-26 0.87
356        TRI_2020-04-16 0.83
357        TRI_2021-09-30 0.83
358        TRI_2017-08-22 0.82
359        TRI_2018-12-26 0.82
360        TRI_2021-05-08 0.81
361        TRI_2021-04-22 0.80
362        TRI_2017-06-06 0.78
363        TRI_2018-02-16 0.78
364        TRI_2020-09-17 0.77
365        TRI_2017-05-24 0.76
366        TRI_2018-09-18 0.76
367        TRI_2018-05-06 0.75
368        TRI_2021-09-03 0.75
369        TRI_2021-04-20 0.74
370        TRI_2018-03-09 0.73
371        TRI_2018-01-05 0.72
372        TRI_2020-06-23 0.72
373        TRI_2018-06-10 0.71
374        TRI_2020-01-08 0.71
375        TRI_2020-02-10 0.71
376        TRI_2018-07-03 0.65
377        TRI_2018-11-19 0.65
378        TRI_2018-12-02 0.65
379        TRI_2017-03-26 0.62
380        TRI_2020-04-13 0.62
381        TRI_2020-11-01 0.62
382        TRI_2018-04-12 0.61
383        TRI_2017-08-26 0.55
384        TRI_2018-07-14 0.55
385        TRI_2021-02-08 0.54
386        TRI_2017-08-27 0.52
387        TRI_2020-01-09 0.51
388        TRI_2020-04-12 0.51
389        TRI_2018-07-04 0.50
390        TRI_2018-12-21 0.50
391        TRI_2020-03-17 0.50
392        TRI_2017-05-28 0.47
393        TRI_2018-01-09 0.45
394        TRI_2021-06-14 0.45
395        TRI_2020-09-08 0.44
396        TRI_2020-12-11 0.44
397        TRI_2018-03-11 0.43
398        TRI_2018-05-30 0.42
399        TRI_2020-04-09 0.42
400        TRI_2020-11-17 0.42
401        TRI_2018-09-12 0.37
402        TRI_2017-03-02 0.36
403        TRI_2018-05-27 0.36
404        TRI_2021-03-04 0.36
405        TRI_2021-03-27 0.36
406        TRI_2018-05-23 0.35
407        TRI_2018-10-12 0.35
408        TRI_2020-04-17 0.35
409        TRI_2021-12-27 0.35
410        TRI_2017-04-09 0.34
411        TRI_2017-08-15 0.34
412        TRI_2021-12-20 0.33
413        TRI_2017-08-23 0.32
414        TRI_2017-06-21 0.31
415        TRI_2017-09-25 0.31
416        TRI_2020-12-12 0.31
417        TRI_2018-01-08 0.30
418        TRI_2018-10-28 0.30
419        TRI_2018-09-15 0.29
420        TRI_2018-11-29 0.29
421        TRI_2020-05-11 0.29
422        TRI_2017-03-22 0.28
423        TRI_2018-01-23 0.28
424        TRI_2017-08-07 0.25
425        TRI_2018-06-08 0.24
426        TRI_2020-02-14 0.23
427        TRI_2020-04-14 0.23
428        TRI_2020-06-26 0.23
429        TRI_2020-09-16 0.23
430        TRI_2018-03-03 0.22
431        TRI_2018-02-05 0.21
432        TRI_2020-04-02 0.18
433        TRI_2018-04-18 0.17
434        TRI_2017-02-13 0.15
435        TRI_2020-12-28 0.15
436        TRI_2021-12-25 0.15
437        TRI_2020-09-05 0.12
438        TRI_2020-09-21 0.07
439        TRI_2017-01-03 0.00
440        TRI_2017-01-04 0.00
441        TRI_2017-01-05 0.00
442        TRI_2017-01-06 0.00


  See additional explanation after the below links
The first 8 localities are placed according to 8 cardinal points at about 30 km from Tricastin, the following localities are ranked according to the severity of the health impact in decreasing order: Meisse →N (FRA)         Dieulefit →NE (FRA)         Nyons →E (FRA)         Gigondas →SE (FRA)         St‑Geniès →S (FRA)         Fontarèches →SE (FRA)         Vagnas →W (FRA)         St‑Maurice d'Ardèche →NW (FRA)         Orange (FRA)         Montélimar (FRA)         Avignon (FRA)         Arles (FRA)         Privas (FRA)         Nîmes (FRA)         Valence (FRA)         Istres (FRA)         St‑Rambert‑d'Albon (FRA)         Vienne (FRA)         Aix‑en‑Provence (FRA)         Annonay (FRA)         Alès (FRA)         Marseille (FRA)         Villefranche‑sur‑Saône (FRA)         Lyon (FRA)         Cannes (FRA)         Mâcon (FRA)         Montpellier (FRA)         Bourgoin‑Jallieu (FRA)         Annecy (FRA)         Toulon (FRA)         Sanremo (ITA)         Nice (FRA)         Saint‑Tropez (FRA)         Feurs (FRA)         Cuneo (ITA)         Draguignan (FRA)         Genève (CHE)         Béziers (FRA)         St‑Étienne (FRA)         Monaco (MCO)         Lausanne (CHE)         Sisteron (FRA)         Roanne (FRA)         Torino (ITA)         Perpignan (FRA)         Pinerolo (ITA)         Bourg‑en‑Bresse (FRA)         Châtillon‑en‑Diois (FRA)         Issoire (FRA)         Grenoble (FRA)         Figueras (ESP)         Neuchâtel (CHE)         Alessandria (ITA)         Carcassonne (FRA)         Mende (FRA)         Bellegarde‑sur‑Valserine (FRA)         Digne (FRA)         Le Puy (FRA)         Chignin (FRA)         Vichy (FRA)         Pisa (ITA)         Gap (FRA)         Fribourg (CHE)         Savona (ITA)         Bologna (ITA)         Mulhouse (FRA)         Albi (FRA)         L'Alpe d'Huez (FRA)         Alba (ITA)         Dijon (FRA)         Bern (CHE)         Strasbourg (FRA)         Moulins (FRA)         Girona (ESP)         Genoa (ITA)         St‑Jean‑de‑Maurienne (FRA)         Nancy (FRA)         La Spezia (ITA)         Rodez (FRA)         Clermont‑Ferrand (FRA)        

See the potential impact on the following geographical areas:          Europe (51 countries)         Spain          France          Italy          Switzerland 


ADDITIONAL EXPLANATION ON THE TABLE
1° The radioactivity comes from the passage of the cloud in the hours following an accident;
2° The above individual doses do not include soil irradiation or ingestion of contaminated food after the passage of the cloud;
3° These figures are estimates;
4° SEE COMMENTARY ON LOW AND HIGH DOSES.

5° The calculations are not derived using the map in the illustration, but from another map – of the same format as the one for download on our website to study deposition – which explains some discrepancies between the figure and its illustration.
6° The analysis of the 11 situations producing the maximum fallout allows us to establish the highest risk for a given city, i.e., the consequences of weather situations occurring in 1% of the cases.
7° The above data allow for the identification of the meteorological conditions that would have the worst impact on the area in question, as well as those that would keep radioactivity away. In the event of a major accident at the nuclear power plant concerned, a quick comparison of this analysis with the then prevailing meteorological conditions could be very useful to act as decentralized as possible; local authorities could keep these analyses as ready references to better and more rapidly deploy population protection strategies.




Photo cropped from the work of Marianne Casamance, CC BY-SA 4.0, via Wikimedia Commons
Tricastin, France, pressurized water reactor (PWR), 4 × 2785 megawatts thermal (MWth)