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 :

Dieulefit →NE (34 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_2017-06-09 200.34
2        TRI_2020-03-26 136.37
3        TRI_2017-03-17 96.45
4        TRI_2018-09-27 95.07
5        TRI_2017-10-14 80.69
6        TRI_2020-04-19 66.38
7        TRI_2017-03-02 65.06
8        TRI_2020-03-21 62.70
9        TRI_2020-04-21 61.56
10        TRI_2020-12-12 58.48
11        TRI_2017-03-05 54.74
12        TRI_2017-06-28 50.00
13        TRI_2018-09-26 47.23
14        TRI_2017-02-23 45.93
15        TRI_2017-08-27 45.18
16        TRI_2018-08-13 43.88
17        TRI_2021-04-01 43.10
18        TRI_2021-02-23 41.19
19        TRI_2018-04-20 38.80
20        TRI_2018-04-19 38.31
21        TRI_2017-09-29 37.17
22        TRI_2017-07-07 36.86
23        TRI_2021-03-07 36.57
24        TRI_2020-04-02 36.21
25        TRI_2017-04-01 35.15
26        TRI_2021-11-01 34.19
27        TRI_2021-08-15 34.11
28        TRI_2017-03-12 33.98
29        TRI_2018-06-07 33.54
30        TRI_2017-08-23 33.41
31        TRI_2017-03-06 33.31
32        TRI_2017-06-14 33.28
33        TRI_2020-04-18 31.31
34        TRI_2020-04-10 30.95
35        TRI_2018-02-15 29.73
36        TRI_2018-09-30 29.70
37        TRI_2020-12-24 29.50
38        TRI_2018-04-23 26.98
39        TRI_2020-07-20 26.80
40        TRI_2021-05-31 26.52
41        TRI_2017-10-13 26.46
42        TRI_2017-12-15 26.41
43        TRI_2020-05-23 25.92
44        TRI_2017-05-06 25.66
45        TRI_2021-08-21 25.16
46        TRI_2018-01-31 24.96
47        TRI_2017-02-03 24.85
48        TRI_2020-10-09 23.84
49        TRI_2020-10-31 23.81
50        TRI_2017-10-20 23.61
51        TRI_2018-09-09 22.85
52        TRI_2018-07-24 22.73
53        TRI_2018-01-18 22.55
54        TRI_2021-10-18 22.41
55        TRI_2020-01-03 22.28
56        TRI_2020-10-28 22.25
57        TRI_2018-03-12 21.86
58        TRI_2020-05-11 21.64
59        TRI_2018-09-06 21.59
60        TRI_2020-04-11 21.24
61        TRI_2018-10-26 21.18
62        TRI_2018-05-25 20.94
63        TRI_2017-06-22 20.67
64        TRI_2018-06-30 20.55
65        TRI_2020-05-22 20.25
66        TRI_2020-10-05 20.19
67        TRI_2018-07-15 20.14
68        TRI_2017-09-23 20.03
69        TRI_2017-06-27 19.51
70        TRI_2021-10-17 19.45
71        TRI_2021-12-10 19.12
72        TRI_2020-03-20 18.98
73        TRI_2020-04-01 18.80
74        TRI_2021-03-30 18.73
75        TRI_2017-06-21 18.48
76        TRI_2018-10-06 18.34
77        TRI_2017-05-27 18.27
78        TRI_2017-09-28 18.11
79        TRI_2018-06-29 18.10
80        TRI_2020-05-10 18.04
81        TRI_2020-09-23 17.91
82        TRI_2017-07-08 17.57
83        TRI_2020-11-18 17.47
84        TRI_2020-09-05 17.43
85        TRI_2021-04-30 17.43
86        TRI_2018-07-27 17.38
87        TRI_2020-04-26 17.29
88        TRI_2021-08-04 17.08
89        TRI_2020-08-09 16.90
90        TRI_2018-06-04 16.50
91        TRI_2020-03-19 16.14
92        TRI_2020-12-20 15.87
93        TRI_2021-09-23 14.92
94        TRI_2021-03-29 14.30
95        TRI_2017-05-30 14.16
96        TRI_2018-08-16 13.95
97        TRI_2020-11-09 13.85
98        TRI_2020-04-23 13.29
99        TRI_2021-05-06 13.23
100        TRI_2018-01-03 13.07
101        TRI_2018-05-06 12.98
102        TRI_2018-07-14 12.94
103        TRI_2021-05-05 12.92
104        TRI_2020-12-08 12.58
105        TRI_2017-06-13 12.57
106        TRI_2020-05-30 12.52
107        TRI_2021-04-25 12.20
108        TRI_2017-04-08 12.05
109        TRI_2020-08-19 11.85
110        TRI_2017-01-02 11.77
111        TRI_2018-05-23 11.73
112        TRI_2017-07-20 11.55
113        TRI_2017-12-30 11.52
114        TRI_2017-12-14 11.44
115        TRI_2018-08-22 11.22
116        TRI_2020-07-10 11.21
117        TRI_2020-01-12 11.17
118        TRI_2018-09-21 10.82
119        TRI_2017-08-22 10.81
120        TRI_2020-12-21 10.67
121        TRI_2020-07-27 10.60
122        TRI_2020-06-04 10.55
123        TRI_2021-09-05 10.43
124        TRI_2020-04-24 10.42
125        TRI_2018-06-20 10.23
126        TRI_2020-08-16 10.11
127        TRI_2017-07-29 10.08
128        TRI_2020-08-07 10.03
129        TRI_2017-02-15 9.94
130        TRI_2017-12-12 9.77
131        TRI_2020-04-09 9.71
132        TRI_2017-02-16 9.67
133        TRI_2018-03-02 9.66
134        TRI_2020-09-21 9.66
135        TRI_2020-05-31 9.62
136        TRI_2020-03-18 9.50
137        TRI_2018-08-29 9.24
138        TRI_2018-09-05 9.24
139        TRI_2020-03-23 9.13
140        TRI_2021-02-07 8.99
141        TRI_2021-06-28 8.92
142        TRI_2018-04-27 8.76
143        TRI_2020-04-22 8.68
144        TRI_2017-06-11 8.59
145        TRI_2018-09-10 8.54
146        TRI_2017-06-30 8.51
147        TRI_2017-10-02 8.50
148        TRI_2021-06-22 8.49
149        TRI_2021-09-06 8.41
150        TRI_2021-01-29 8.36
151        TRI_2018-07-29 8.32
152        TRI_2017-08-08 8.28
153        TRI_2021-03-02 8.25
154        TRI_2017-03-16 7.72
155        TRI_2020-09-20 7.52
156        TRI_2021-02-08 7.17
157        TRI_2021-11-20 7.09
158        TRI_2020-01-06 6.92
159        TRI_2017-08-02 6.57
160        TRI_2021-02-24 6.54
161        TRI_2021-10-24 6.49
162        TRI_2018-08-06 6.46
163        TRI_2021-11-02 6.38
164        TRI_2018-09-15 6.28
165        TRI_2017-09-26 6.21
166        TRI_2017-09-14 6.18
167        TRI_2018-09-20 6.11
168        TRI_2018-07-03 6.09
169        TRI_2018-11-30 6.00
170        TRI_2020-05-05 5.98
171        TRI_2018-05-21 5.89
172        TRI_2021-05-15 5.77
173        TRI_2018-11-25 5.68
174        TRI_2017-06-29 5.61
175        TRI_2021-05-08 5.43
176        TRI_2017-12-06 5.41
177        TRI_2018-07-02 5.34
178        TRI_2020-08-08 5.29
179        TRI_2018-09-18 5.25
180        TRI_2021-03-04 5.23
181        TRI_2017-10-11 5.09
182        TRI_2018-11-13 5.00
183        TRI_2020-03-24 4.99
184        TRI_2018-07-28 4.98
185        TRI_2020-01-13 4.98
186        TRI_2017-01-03 4.84
187        TRI_2017-08-13 4.83
188        TRI_2020-04-17 4.83
189        TRI_2018-11-24 4.79
190        TRI_2018-05-11 4.74
191        TRI_2017-09-30 4.60
192        TRI_2017-05-03 4.53
193        TRI_2021-04-21 4.50
194        TRI_2017-06-02 4.44
195        TRI_2020-06-27 4.34
196        TRI_2021-01-30 4.34
197        TRI_2021-11-03 4.20
198        TRI_2020-04-25 4.03
199        TRI_2018-12-13 3.99
200        TRI_2020-06-11 3.99
201        TRI_2018-06-09 3.98
202        TRI_2018-09-25 3.98
203        TRI_2017-06-19 3.93
204        TRI_2017-10-26 3.93
205        TRI_2020-03-17 3.88
206        TRI_2020-11-01 3.88
207        TRI_2020-08-28 3.80
208        TRI_2018-07-01 3.79
209        TRI_2021-12-20 3.79
210        TRI_2021-10-14 3.76
211        TRI_2020-10-18 3.75
212        TRI_2020-09-24 3.65
213        TRI_2021-02-14 3.65
214        TRI_2017-06-08 3.64
215        TRI_2021-08-13 3.64
216        TRI_2018-06-02 3.58
217        TRI_2021-10-21 3.47
218        TRI_2021-07-27 3.46
219        TRI_2020-09-15 3.43
220        TRI_2021-04-24 3.40
221        TRI_2018-03-14 3.39
222        TRI_2021-03-31 3.36
223        TRI_2021-04-27 3.36
224        TRI_2018-07-05 3.35
225        TRI_2020-12-07 3.33
226        TRI_2020-12-31 3.32
227        TRI_2018-05-31 3.25
228        TRI_2020-07-09 3.24
229        TRI_2017-06-10 3.20
230        TRI_2020-03-16 3.14
231        TRI_2021-05-11 3.13
232        TRI_2018-03-24 3.12
233        TRI_2021-07-30 3.09
234        TRI_2021-02-09 3.08
235        TRI_2020-08-15 3.00
236        TRI_2017-04-23 2.98
237        TRI_2018-12-25 2.98
238        TRI_2018-05-08 2.96
239        TRI_2021-08-14 2.95
240        TRI_2018-04-14 2.91
241        TRI_2021-08-12 2.91
242        TRI_2021-06-16 2.88
243        TRI_2021-09-09 2.86
244        TRI_2017-11-25 2.84
245        TRI_2018-06-08 2.82
246        TRI_2020-05-09 2.80
247        TRI_2020-06-02 2.75
248        TRI_2018-08-12 2.74
249        TRI_2020-08-06 2.74
250        TRI_2018-11-15 2.64
251        TRI_2017-09-21 2.63
252        TRI_2018-12-16 2.63
253        TRI_2018-12-30 2.63
254        TRI_2017-03-28 2.62
255        TRI_2018-11-17 2.62
256        TRI_2017-07-21 2.60
257        TRI_2017-03-26 2.52
258        TRI_2018-05-07 2.51
259        TRI_2018-12-09 2.51
260        TRI_2017-08-18 2.49
261        TRI_2018-07-20 2.45
262        TRI_2020-06-01 2.45
263        TRI_2021-06-04 2.45
264        TRI_2017-12-25 2.44
265        TRI_2018-10-04 2.43
266        TRI_2018-04-25 2.42
267        TRI_2017-10-31 2.41
268        TRI_2017-12-31 2.40
269        TRI_2021-02-17 2.37
270        TRI_2020-01-26 2.36
271        TRI_2021-03-27 2.36
272        TRI_2017-04-07 2.33
273        TRI_2020-06-23 2.30
274        TRI_2021-06-26 2.29
275        TRI_2018-10-07 2.21
276        TRI_2020-04-12 2.20
277        TRI_2020-05-12 2.17
278        TRI_2020-07-29 2.16
279        TRI_2017-04-26 2.13
280        TRI_2017-01-13 2.08
281        TRI_2018-07-26 2.04
282        TRI_2020-04-04 2.04
283        TRI_2018-11-16 2.03
284        TRI_2020-04-30 2.00
285        TRI_2021-07-28 1.97
286        TRI_2018-08-15 1.96
287        TRI_2021-04-11 1.94
288        TRI_2018-04-08 1.89
289        TRI_2018-09-04 1.88
290        TRI_2021-09-13 1.86
291        TRI_2017-08-28 1.82
292        TRI_2017-08-31 1.82
293        TRI_2018-05-19 1.77
294        TRI_2021-07-29 1.77
295        TRI_2018-03-03 1.76
296        TRI_2021-02-01 1.75
297        TRI_2018-06-11 1.67
298        TRI_2021-04-20 1.67
299        TRI_2021-04-26 1.66
300        TRI_2021-06-17 1.66
301        TRI_2021-09-24 1.66
302        TRI_2018-09-28 1.63
303        TRI_2020-05-04 1.58
304        TRI_2020-05-15 1.55
305        TRI_2020-09-30 1.55
306        TRI_2020-02-27 1.54
307        TRI_2017-11-02 1.53
308        TRI_2018-10-27 1.53
309        TRI_2020-08-13 1.48
310        TRI_2021-04-29 1.46
311        TRI_2020-09-03 1.45
312        TRI_2020-06-28 1.44
313        TRI_2017-01-25 1.41
314        TRI_2021-12-21 1.41
315        TRI_2021-04-08 1.40
316        TRI_2021-02-12 1.39
317        TRI_2021-12-28 1.39
318        TRI_2018-01-05 1.35
319        TRI_2021-11-21 1.35
320        TRI_2020-03-01 1.33
321        TRI_2021-10-15 1.30
322        TRI_2020-09-14 1.28
323        TRI_2020-01-10 1.25
324        TRI_2021-09-03 1.19
325        TRI_2017-09-09 1.18
326        TRI_2017-11-22 1.18
327        TRI_2021-03-06 1.18
328        TRI_2021-04-23 1.18
329        TRI_2021-12-25 1.18
330        TRI_2020-03-25 1.16
331        TRI_2018-07-04 1.15
332        TRI_2018-09-12 1.15
333        TRI_2020-07-31 1.15
334        TRI_2018-02-27 1.14
335        TRI_2018-08-17 1.12
336        TRI_2021-06-03 1.09
337        TRI_2021-10-08 1.09
338        TRI_2021-11-27 1.08
339        TRI_2018-02-16 1.07
340        TRI_2018-05-24 1.07
341        TRI_2020-05-29 1.06
342        TRI_2020-07-19 1.06
343        TRI_2021-04-22 1.04
344        TRI_2017-07-04 1.03
345        TRI_2018-01-17 1.03
346        TRI_2018-05-22 0.93
347        TRI_2017-01-28 0.90
348        TRI_2018-10-05 0.90
349        TRI_2021-06-23 0.86
350        TRI_2018-02-06 0.85
351        TRI_2021-06-24 0.85
352        TRI_2020-05-13 0.83
353        TRI_2021-07-11 0.83
354        TRI_2018-04-12 0.81
355        TRI_2017-06-20 0.80
356        TRI_2017-08-07 0.79
357        TRI_2017-05-22 0.77
358        TRI_2018-05-30 0.75
359        TRI_2021-06-18 0.72
360        TRI_2017-11-01 0.69
361        TRI_2017-10-16 0.67
362        TRI_2017-07-28 0.65
363        TRI_2018-02-01 0.65
364        TRI_2021-03-11 0.65
365        TRI_2017-04-28 0.64
366        TRI_2018-11-19 0.64
367        TRI_2020-09-16 0.64
368        TRI_2018-06-06 0.63
369        TRI_2018-10-24 0.63
370        TRI_2018-03-05 0.62
371        TRI_2018-03-29 0.62
372        TRI_2021-12-24 0.62
373        TRI_2018-04-21 0.61
374        TRI_2018-06-19 0.60
375        TRI_2018-09-11 0.60
376        TRI_2017-02-25 0.57
377        TRI_2018-06-01 0.57
378        TRI_2021-06-14 0.57
379        TRI_2021-06-19 0.56
380        TRI_2017-07-03 0.55
381        TRI_2018-06-03 0.53
382        TRI_2017-05-09 0.50
383        TRI_2020-07-30 0.50
384        TRI_2021-01-19 0.50
385        TRI_2017-05-14 0.49
386        TRI_2017-07-30 0.49
387        TRI_2017-02-05 0.48
388        TRI_2021-01-02 0.46
389        TRI_2020-02-13 0.44
390        TRI_2021-08-30 0.44
391        TRI_2020-08-11 0.43
392        TRI_2020-01-02 0.42
393        TRI_2017-04-09 0.40
394        TRI_2017-09-27 0.39
395        TRI_2018-08-31 0.39
396        TRI_2021-06-15 0.39
397        TRI_2017-12-01 0.38
398        TRI_2017-04-12 0.37
399        TRI_2018-07-19 0.37
400        TRI_2020-08-21 0.37
401        TRI_2021-07-04 0.37
402        TRI_2017-04-22 0.36
403        TRI_2017-10-17 0.36
404        TRI_2018-08-04 0.36
405        TRI_2017-12-07 0.33
406        TRI_2020-06-25 0.33
407        TRI_2018-02-05 0.32
408        TRI_2020-04-13 0.31
409        TRI_2021-05-30 0.31
410        TRI_2018-10-12 0.30
411        TRI_2018-04-26 0.29
412        TRI_2021-02-25 0.29
413        TRI_2018-01-10 0.27
414        TRI_2020-04-08 0.26
415        TRI_2020-06-13 0.26
416        TRI_2021-12-01 0.26
417        TRI_2020-07-01 0.25
418        TRI_2021-08-10 0.25
419        TRI_2018-01-23 0.23
420        TRI_2018-10-16 0.23
421        TRI_2020-10-17 0.21
422        TRI_2021-10-27 0.21
423        TRI_2017-07-19 0.20
424        TRI_2017-12-23 0.20
425        TRI_2020-12-05 0.20
426        TRI_2021-05-10 0.20
427        TRI_2018-05-01 0.19
428        TRI_2017-05-12 0.18
429        TRI_2018-04-01 0.18
430        TRI_2021-10-01 0.18
431        TRI_2021-03-03 0.16
432        TRI_2020-03-29 0.14
433        TRI_2018-04-11 0.13
434        TRI_2021-09-12 0.12
435        TRI_2018-07-12 0.10
436        TRI_2021-05-29 0.10
437        TRI_2017-03-22 0.09
438        TRI_2018-09-23 0.09
439        TRI_2017-05-24 0.07
440        TRI_2018-11-03 0.06
441        TRI_2017-01-01 0.00
442        TRI_2017-01-04 0.00
443        TRI_2017-01-05 0.00
444        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)