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 :

Sanremo (248 km) ITA

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_2017-02-16 137.17
2        TRI_2017-07-11 132.76
3        TRI_2017-05-03 92.92
4        TRI_2017-03-17 80.17
5        TRI_2018-01-30 73.77
6        TRI_2017-02-21 68.09
7        TRI_2017-06-22 63.43
8        TRI_2020-07-20 49.69
9        TRI_2017-05-14 45.62
10        TRI_2017-05-23 36.62
11        TRI_2021-08-16 32.97
12        TRI_2017-05-13 29.34
13        TRI_2017-03-16 28.15
14        TRI_2017-04-13 24.78
15        TRI_2021-02-01 23.76
16        TRI_2020-10-31 22.22
17        TRI_2020-07-22 20.17
18        TRI_2018-07-19 19.56
19        TRI_2018-09-03 18.52
20        TRI_2020-05-15 17.65
21        TRI_2017-05-19 16.00
22        TRI_2020-07-08 15.02
23        TRI_2021-05-27 15.01
24        TRI_2018-05-15 14.96
25        TRI_2017-02-19 14.49
26        TRI_2020-07-25 14.45
27        TRI_2017-03-18 14.24
28        TRI_2017-10-08 13.75
29        TRI_2018-07-31 13.15
30        TRI_2017-04-23 12.90
31        TRI_2018-03-14 12.69
32        TRI_2018-07-12 12.60
33        TRI_2021-09-18 12.34
34        TRI_2021-05-05 11.89
35        TRI_2018-07-30 11.82
36        TRI_2020-05-30 11.44
37        TRI_2017-03-02 11.37
38        TRI_2021-10-21 11.25
39        TRI_2018-06-01 11.16
40        TRI_2020-06-28 10.95
41        TRI_2017-02-20 10.86
42        TRI_2021-12-28 10.77
43        TRI_2021-06-24 10.04
44        TRI_2017-07-04 9.99
45        TRI_2017-04-12 9.61
46        TRI_2020-07-27 9.49
47        TRI_2020-05-12 9.41
48        TRI_2021-08-21 9.35
49        TRI_2021-03-27 9.23
50        TRI_2020-01-30 9.13
51        TRI_2020-06-07 8.96
52        TRI_2017-04-22 8.95
53        TRI_2020-08-25 8.83
54        TRI_2017-06-05 8.62
55        TRI_2017-06-24 8.33
56        TRI_2020-06-18 8.33
57        TRI_2020-05-22 8.18
58        TRI_2020-01-01 8.14
59        TRI_2020-08-18 8.09
60        TRI_2018-12-27 8.07
61        TRI_2020-10-18 7.91
62        TRI_2020-04-23 7.69
63        TRI_2021-02-17 7.54
64        TRI_2017-06-14 7.51
65        TRI_2020-08-26 7.51
66        TRI_2021-05-26 7.29
67        TRI_2017-05-05 7.11
68        TRI_2020-05-05 7.10
69        TRI_2017-06-06 7.05
70        TRI_2018-03-12 6.58
71        TRI_2020-04-24 6.35
72        TRI_2021-07-10 6.02
73        TRI_2017-07-03 5.80
74        TRI_2017-09-13 5.75
75        TRI_2017-06-21 5.63
76        TRI_2021-08-13 5.58
77        TRI_2018-10-27 5.57
78        TRI_2021-07-02 5.51
79        TRI_2017-02-15 5.50
80        TRI_2018-06-27 5.42
81        TRI_2021-05-31 5.42
82        TRI_2020-09-05 5.40
83        TRI_2018-05-09 5.33
84        TRI_2017-04-07 5.26
85        TRI_2020-07-10 5.19
86        TRI_2017-08-07 5.17
87        TRI_2021-11-27 5.15
88        TRI_2020-07-26 5.13
89        TRI_2020-06-09 5.12
90        TRI_2017-10-07 5.11
91        TRI_2020-08-08 5.07
92        TRI_2017-11-08 4.94
93        TRI_2021-11-20 4.88
94        TRI_2021-10-09 4.82
95        TRI_2021-12-01 4.78
96        TRI_2017-05-24 4.73
97        TRI_2020-01-03 4.73
98        TRI_2020-08-17 4.72
99        TRI_2020-07-19 4.62
100        TRI_2020-11-01 4.54
101        TRI_2017-10-05 4.41
102        TRI_2020-02-27 4.28
103        TRI_2018-05-16 4.18
104        TRI_2021-06-22 4.18
105        TRI_2021-06-26 4.18
106        TRI_2021-08-03 4.16
107        TRI_2020-12-24 4.15
108        TRI_2021-08-20 4.13
109        TRI_2021-04-08 4.12
110        TRI_2017-10-02 4.11
111        TRI_2021-07-20 4.09
112        TRI_2021-05-06 3.97
113        TRI_2017-04-21 3.90
114        TRI_2017-01-09 3.89
115        TRI_2017-03-06 3.89
116        TRI_2017-09-05 3.85
117        TRI_2017-07-23 3.80
118        TRI_2021-04-01 3.78
119        TRI_2020-10-05 3.77
120        TRI_2018-05-23 3.72
121        TRI_2020-03-28 3.68
122        TRI_2017-02-05 3.66
123        TRI_2021-05-11 3.64
124        TRI_2017-10-25 3.63
125        TRI_2017-12-24 3.61
126        TRI_2018-07-03 3.56
127        TRI_2020-08-19 3.54
128        TRI_2018-07-20 3.51
129        TRI_2020-08-15 3.44
130        TRI_2017-06-25 3.43
131        TRI_2017-12-31 3.41
132        TRI_2018-06-12 3.41
133        TRI_2021-07-14 3.39
134        TRI_2020-06-11 3.37
135        TRI_2017-12-14 3.30
136        TRI_2017-12-03 3.28
137        TRI_2018-05-14 3.26
138        TRI_2021-03-24 3.26
139        TRI_2018-07-08 3.25
140        TRI_2021-04-02 3.19
141        TRI_2018-10-28 3.15
142        TRI_2018-09-26 3.13
143        TRI_2021-06-05 3.13
144        TRI_2017-09-04 3.12
145        TRI_2020-06-04 3.12
146        TRI_2018-01-03 3.03
147        TRI_2020-11-29 3.03
148        TRI_2021-05-22 3.03
149        TRI_2018-07-25 3.00
150        TRI_2021-08-30 3.00
151        TRI_2018-09-15 2.98
152        TRI_2018-08-31 2.95
153        TRI_2017-06-09 2.86
154        TRI_2021-11-19 2.85
155        TRI_2017-03-19 2.82
156        TRI_2018-10-25 2.72
157        TRI_2020-06-02 2.70
158        TRI_2020-09-01 2.70
159        TRI_2021-06-13 2.69
160        TRI_2021-12-18 2.69
161        TRI_2017-06-13 2.68
162        TRI_2021-11-02 2.68
163        TRI_2018-03-17 2.67
164        TRI_2021-10-10 2.64
165        TRI_2018-03-29 2.62
166        TRI_2018-09-13 2.57
167        TRI_2018-05-31 2.55
168        TRI_2017-03-13 2.53
169        TRI_2018-08-22 2.53
170        TRI_2017-03-15 2.51
171        TRI_2021-08-06 2.49
172        TRI_2017-12-15 2.48
173        TRI_2017-04-10 2.46
174        TRI_2017-06-30 2.45
175        TRI_2017-07-28 2.45
176        TRI_2018-02-14 2.44
177        TRI_2020-05-16 2.43
178        TRI_2021-02-15 2.34
179        TRI_2020-06-06 2.32
180        TRI_2021-04-04 2.31
181        TRI_2021-09-19 2.31
182        TRI_2018-03-03 2.29
183        TRI_2017-09-20 2.25
184        TRI_2018-06-08 2.25
185        TRI_2018-07-05 2.23
186        TRI_2021-02-14 2.23
187        TRI_2020-12-27 2.22
188        TRI_2018-05-22 2.20
189        TRI_2018-12-25 2.20
190        TRI_2020-01-06 2.20
191        TRI_2021-07-15 2.17
192        TRI_2018-06-29 2.15
193        TRI_2018-06-20 2.11
194        TRI_2017-10-04 2.10
195        TRI_2020-09-23 2.08
196        TRI_2017-08-04 2.06
197        TRI_2021-08-19 2.06
198        TRI_2020-10-09 2.05
199        TRI_2017-08-23 2.01
200        TRI_2018-06-16 2.01
201        TRI_2017-09-16 2.00
202        TRI_2020-09-21 2.00
203        TRI_2020-04-25 1.99
204        TRI_2017-06-23 1.98
205        TRI_2021-08-04 1.97
206        TRI_2017-12-06 1.95
207        TRI_2018-10-24 1.92
208        TRI_2018-06-21 1.89
209        TRI_2020-07-30 1.88
210        TRI_2020-09-30 1.85
211        TRI_2020-11-18 1.84
212        TRI_2020-05-11 1.82
213        TRI_2020-07-09 1.82
214        TRI_2021-07-19 1.79
215        TRI_2018-09-14 1.77
216        TRI_2021-03-21 1.77
217        TRI_2021-01-04 1.71
218        TRI_2018-04-12 1.70
219        TRI_2017-10-03 1.68
220        TRI_2021-04-19 1.68
221        TRI_2021-06-07 1.68
222        TRI_2020-07-14 1.66
223        TRI_2018-07-14 1.65
224        TRI_2021-01-29 1.63
225        TRI_2018-04-24 1.61
226        TRI_2021-02-07 1.60
227        TRI_2017-09-17 1.58
228        TRI_2021-07-03 1.57
229        TRI_2021-12-25 1.57
230        TRI_2017-12-05 1.55
231        TRI_2017-08-13 1.54
232        TRI_2017-08-28 1.54
233        TRI_2020-07-23 1.53
234        TRI_2020-09-28 1.52
235        TRI_2021-06-29 1.52
236        TRI_2018-06-07 1.50
237        TRI_2018-07-21 1.50
238        TRI_2020-08-07 1.50
239        TRI_2020-01-13 1.49
240        TRI_2017-09-14 1.48
241        TRI_2018-05-11 1.48
242        TRI_2018-08-29 1.48
243        TRI_2020-05-01 1.48
244        TRI_2020-10-17 1.48
245        TRI_2020-04-22 1.47
246        TRI_2021-12-12 1.46
247        TRI_2021-04-05 1.45
248        TRI_2018-07-09 1.41
249        TRI_2018-12-13 1.41
250        TRI_2017-08-31 1.40
251        TRI_2020-07-29 1.40
252        TRI_2017-07-29 1.39
253        TRI_2017-07-01 1.37
254        TRI_2017-06-11 1.36
255        TRI_2018-04-01 1.34
256        TRI_2017-06-20 1.33
257        TRI_2021-03-09 1.33
258        TRI_2021-07-08 1.33
259        TRI_2020-08-09 1.31
260        TRI_2018-06-04 1.30
261        TRI_2017-02-25 1.28
262        TRI_2017-08-08 1.27
263        TRI_2021-05-16 1.27
264        TRI_2021-08-12 1.25
265        TRI_2020-05-21 1.24
266        TRI_2021-02-09 1.24
267        TRI_2017-09-09 1.23
268        TRI_2017-11-05 1.21
269        TRI_2020-07-17 1.21
270        TRI_2020-07-13 1.19
271        TRI_2020-10-26 1.17
272        TRI_2021-12-10 1.17
273        TRI_2018-06-25 1.16
274        TRI_2020-01-12 1.16
275        TRI_2020-05-23 1.15
276        TRI_2021-05-07 1.15
277        TRI_2017-12-23 1.13
278        TRI_2020-03-12 1.12
279        TRI_2020-12-12 1.11
280        TRI_2017-01-03 1.10
281        TRI_2018-02-13 1.10
282        TRI_2018-05-06 1.10
283        TRI_2017-10-26 1.09
284        TRI_2017-06-12 1.08
285        TRI_2017-02-23 1.06
286        TRI_2018-09-01 1.06
287        TRI_2018-07-28 1.05
288        TRI_2020-04-30 1.05
289        TRI_2021-03-20 1.05
290        TRI_2018-01-23 1.04
291        TRI_2020-08-01 1.04
292        TRI_2020-01-02 1.02
293        TRI_2017-05-22 1.01
294        TRI_2021-07-05 1.01
295        TRI_2021-11-04 0.99
296        TRI_2017-05-06 0.97
297        TRI_2017-11-13 0.97
298        TRI_2020-04-01 0.96
299        TRI_2021-07-04 0.96
300        TRI_2017-10-13 0.95
301        TRI_2021-08-26 0.95
302        TRI_2017-03-21 0.93
303        TRI_2020-02-14 0.93
304        TRI_2020-05-04 0.93
305        TRI_2017-10-12 0.91
306        TRI_2021-07-29 0.91
307        TRI_2021-12-31 0.90
308        TRI_2018-12-02 0.89
309        TRI_2017-10-28 0.87
310        TRI_2020-12-06 0.87
311        TRI_2020-06-30 0.86
312        TRI_2021-06-23 0.86
313        TRI_2021-07-13 0.86
314        TRI_2021-07-30 0.86
315        TRI_2017-08-22 0.85
316        TRI_2018-02-01 0.85
317        TRI_2018-06-26 0.85
318        TRI_2018-08-12 0.85
319        TRI_2017-01-13 0.84
320        TRI_2021-08-15 0.83
321        TRI_2021-11-01 0.83
322        TRI_2017-03-22 0.81
323        TRI_2018-04-26 0.81
324        TRI_2018-07-27 0.80
325        TRI_2021-11-03 0.80
326        TRI_2021-03-11 0.79
327        TRI_2021-07-28 0.79
328        TRI_2020-10-16 0.78
329        TRI_2021-09-23 0.78
330        TRI_2018-10-29 0.76
331        TRI_2021-02-02 0.74
332        TRI_2018-10-26 0.73
333        TRI_2020-05-27 0.72
334        TRI_2020-09-06 0.72
335        TRI_2017-06-08 0.71
336        TRI_2021-02-12 0.70
337        TRI_2021-03-04 0.70
338        TRI_2021-07-31 0.69
339        TRI_2018-07-07 0.66
340        TRI_2018-03-06 0.64
341        TRI_2017-08-06 0.63
342        TRI_2018-01-20 0.63
343        TRI_2017-04-09 0.62
344        TRI_2020-06-13 0.61
345        TRI_2021-01-08 0.61
346        TRI_2017-07-21 0.58
347        TRI_2018-06-11 0.58
348        TRI_2020-12-31 0.58
349        TRI_2018-08-01 0.57
350        TRI_2020-03-01 0.57
351        TRI_2018-07-22 0.56
352        TRI_2020-03-08 0.56
353        TRI_2018-03-02 0.55
354        TRI_2021-08-08 0.55
355        TRI_2017-03-28 0.52
356        TRI_2017-10-11 0.52
357        TRI_2018-02-27 0.52
358        TRI_2021-12-20 0.52
359        TRI_2018-01-31 0.51
360        TRI_2020-01-26 0.51
361        TRI_2018-06-15 0.50
362        TRI_2018-05-13 0.49
363        TRI_2021-11-14 0.49
364        TRI_2021-12-08 0.49
365        TRI_2020-05-29 0.48
366        TRI_2020-06-23 0.48
367        TRI_2021-04-18 0.48
368        TRI_2021-07-22 0.48
369        TRI_2017-07-27 0.47
370        TRI_2018-03-25 0.47
371        TRI_2018-12-30 0.47
372        TRI_2021-09-12 0.47
373        TRI_2021-10-08 0.47
374        TRI_2018-05-02 0.46
375        TRI_2021-05-08 0.46
376        TRI_2020-05-31 0.45
377        TRI_2021-10-04 0.45
378        TRI_2018-12-26 0.44
379        TRI_2017-05-09 0.42
380        TRI_2021-05-23 0.40
381        TRI_2018-11-19 0.39
382        TRI_2020-12-21 0.39
383        TRI_2021-10-17 0.39
384        TRI_2021-07-18 0.38
385        TRI_2020-08-31 0.36
386        TRI_2020-12-08 0.36
387        TRI_2017-05-21 0.35
388        TRI_2018-01-18 0.35
389        TRI_2017-12-07 0.33
390        TRI_2018-02-16 0.33
391        TRI_2018-09-20 0.32
392        TRI_2018-09-21 0.32
393        TRI_2018-02-08 0.31
394        TRI_2018-08-16 0.31
395        TRI_2020-02-13 0.30
396        TRI_2017-02-17 0.29
397        TRI_2017-12-08 0.29
398        TRI_2018-01-04 0.29
399        TRI_2018-04-27 0.29
400        TRI_2021-05-15 0.29
401        TRI_2020-03-29 0.28
402        TRI_2020-12-05 0.27
403        TRI_2020-06-01 0.26
404        TRI_2021-07-27 0.26
405        TRI_2020-07-01 0.25
406        TRI_2020-08-29 0.22
407        TRI_2021-10-14 0.22
408        TRI_2018-11-24 0.21
409        TRI_2018-11-03 0.20
410        TRI_2020-02-22 0.20
411        TRI_2020-02-28 0.20
412        TRI_2020-05-28 0.20
413        TRI_2021-01-03 0.20
414        TRI_2021-03-10 0.20
415        TRI_2017-03-05 0.19
416        TRI_2020-09-20 0.19
417        TRI_2018-07-15 0.18
418        TRI_2020-09-24 0.18
419        TRI_2017-08-16 0.17
420        TRI_2021-08-22 0.17
421        TRI_2018-07-13 0.16
422        TRI_2021-06-11 0.16
423        TRI_2020-08-22 0.15
424        TRI_2021-09-16 0.15
425        TRI_2020-09-25 0.13
426        TRI_2017-11-30 0.12
427        TRI_2021-07-21 0.12
428        TRI_2020-01-17 0.11
429        TRI_2021-08-07 0.10
430        TRI_2021-11-13 0.10
431        TRI_2018-04-25 0.08
432        TRI_2021-07-11 0.08
433        TRI_2020-12-22 0.05
434        TRI_2021-05-01 0.05
435        TRI_2017-01-01 0.00
436        TRI_2017-01-02 0.00
437        TRI_2017-01-04 0.00
438        TRI_2017-01-05 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)