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 :

La Spezia (408 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_2018-07-19 24.25
2        TRI_2017-12-24 22.43
3        TRI_2021-12-20 18.93
4        TRI_2018-08-31 15.92
5        TRI_2020-10-28 15.11
6        TRI_2017-11-08 14.92
7        TRI_2021-03-24 14.85
8        TRI_2020-07-26 14.17
9        TRI_2018-06-29 13.17
10        TRI_2018-05-14 12.45
11        TRI_2021-05-26 10.91
12        TRI_2021-07-15 10.81
13        TRI_2018-05-23 10.66
14        TRI_2020-06-30 9.48
15        TRI_2018-07-22 9.31
16        TRI_2021-09-16 8.99
17        TRI_2017-05-19 8.97
18        TRI_2020-07-19 8.74
19        TRI_2021-08-16 8.50
20        TRI_2017-07-28 8.48
21        TRI_2021-08-04 8.41
22        TRI_2020-03-28 8.14
23        TRI_2018-09-06 8.11
24        TRI_2017-09-15 8.08
25        TRI_2021-08-29 7.75
26        TRI_2020-10-29 7.71
27        TRI_2017-02-19 7.49
28        TRI_2021-05-18 7.47
29        TRI_2020-08-31 7.41
30        TRI_2020-10-10 7.26
31        TRI_2020-03-06 7.24
32        TRI_2018-09-13 7.16
33        TRI_2020-06-09 7.07
34        TRI_2018-01-29 6.96
35        TRI_2017-11-20 6.59
36        TRI_2017-06-04 6.51
37        TRI_2018-09-14 6.48
38        TRI_2020-02-13 6.30
39        TRI_2020-10-17 6.28
40        TRI_2017-11-21 6.15
41        TRI_2018-03-14 6.11
42        TRI_2018-04-23 5.98
43        TRI_2018-04-24 5.96
44        TRI_2021-09-19 5.96
45        TRI_2020-10-09 5.89
46        TRI_2018-12-03 5.83
47        TRI_2018-09-22 5.76
48        TRI_2021-06-13 5.76
49        TRI_2020-05-15 5.61
50        TRI_2017-07-23 5.60
51        TRI_2021-05-07 5.55
52        TRI_2020-05-01 5.48
53        TRI_2020-09-28 5.47
54        TRI_2017-10-08 5.46
55        TRI_2018-06-01 5.38
56        TRI_2020-01-01 5.18
57        TRI_2017-10-07 4.90
58        TRI_2017-09-05 4.88
59        TRI_2017-12-12 4.79
60        TRI_2020-10-13 4.77
61        TRI_2018-07-18 4.73
62        TRI_2020-02-02 4.72
63        TRI_2021-10-05 4.69
64        TRI_2018-12-22 4.63
65        TRI_2021-05-13 4.44
66        TRI_2017-02-16 4.31
67        TRI_2018-08-14 4.24
68        TRI_2021-06-30 4.17
69        TRI_2018-05-16 4.14
70        TRI_2017-07-01 4.12
71        TRI_2020-06-04 4.12
72        TRI_2021-03-25 4.11
73        TRI_2018-07-03 3.93
74        TRI_2017-03-19 3.91
75        TRI_2020-06-29 3.79
76        TRI_2017-06-24 3.78
77        TRI_2018-12-23 3.73
78        TRI_2021-08-05 3.70
79        TRI_2018-07-07 3.62
80        TRI_2017-05-23 3.61
81        TRI_2018-02-08 3.61
82        TRI_2020-08-14 3.60
83        TRI_2017-06-25 3.59
84        TRI_2017-11-05 3.58
85        TRI_2017-04-10 3.52
86        TRI_2018-07-14 3.51
87        TRI_2017-12-15 3.47
88        TRI_2020-08-18 3.42
89        TRI_2020-07-22 3.34
90        TRI_2020-08-17 3.34
91        TRI_2017-09-06 3.32
92        TRI_2021-12-18 3.26
93        TRI_2020-10-05 3.24
94        TRI_2021-08-08 3.19
95        TRI_2020-08-30 3.09
96        TRI_2020-10-30 3.08
97        TRI_2021-12-12 3.08
98        TRI_2021-08-22 3.04
99        TRI_2020-05-23 3.00
100        TRI_2017-08-04 2.97
101        TRI_2018-05-11 2.97
102        TRI_2021-07-04 2.96
103        TRI_2021-04-12 2.94
104        TRI_2018-06-12 2.90
105        TRI_2021-07-29 2.89
106        TRI_2017-07-27 2.88
107        TRI_2017-10-28 2.88
108        TRI_2017-09-17 2.83
109        TRI_2017-04-21 2.82
110        TRI_2021-11-27 2.81
111        TRI_2020-08-25 2.80
112        TRI_2017-05-09 2.78
113        TRI_2020-03-11 2.76
114        TRI_2017-09-20 2.72
115        TRI_2018-11-24 2.70
116        TRI_2018-09-03 2.69
117        TRI_2021-08-06 2.69
118        TRI_2021-03-13 2.68
119        TRI_2018-03-12 2.67
120        TRI_2020-07-25 2.65
121        TRI_2017-03-21 2.63
122        TRI_2020-01-17 2.63
123        TRI_2018-07-09 2.57
124        TRI_2018-05-15 2.55
125        TRI_2020-08-26 2.52
126        TRI_2020-10-06 2.52
127        TRI_2018-07-10 2.50
128        TRI_2021-07-14 2.50
129        TRI_2021-08-01 2.48
130        TRI_2020-02-23 2.46
131        TRI_2018-02-15 2.43
132        TRI_2021-01-28 2.43
133        TRI_2018-08-22 2.42
134        TRI_2020-07-23 2.40
135        TRI_2020-02-24 2.39
136        TRI_2021-01-06 2.39
137        TRI_2017-09-07 2.38
138        TRI_2020-05-21 2.36
139        TRI_2021-04-02 2.35
140        TRI_2021-07-08 2.35
141        TRI_2021-07-11 2.33
142        TRI_2017-08-06 2.32
143        TRI_2021-05-05 2.32
144        TRI_2018-03-17 2.24
145        TRI_2021-06-25 2.24
146        TRI_2017-03-18 2.23
147        TRI_2020-06-17 2.22
148        TRI_2017-12-08 2.21
149        TRI_2018-08-29 2.20
150        TRI_2021-11-02 2.19
151        TRI_2021-07-05 2.18
152        TRI_2021-07-31 2.17
153        TRI_2021-08-26 2.17
154        TRI_2018-10-24 2.14
155        TRI_2017-10-10 2.12
156        TRI_2018-12-07 2.12
157        TRI_2021-07-20 2.09
158        TRI_2017-07-03 2.08
159        TRI_2021-11-19 2.07
160        TRI_2017-03-06 2.06
161        TRI_2017-04-07 2.06
162        TRI_2020-07-29 2.05
163        TRI_2020-11-11 2.03
164        TRI_2021-05-12 2.03
165        TRI_2021-05-11 2.01
166        TRI_2018-07-23 2.00
167        TRI_2021-03-27 2.00
168        TRI_2021-07-02 2.00
169        TRI_2021-04-19 1.99
170        TRI_2017-09-13 1.97
171        TRI_2021-09-12 1.97
172        TRI_2021-08-20 1.93
173        TRI_2021-12-01 1.92
174        TRI_2021-05-27 1.90
175        TRI_2021-06-05 1.89
176        TRI_2021-12-28 1.89
177        TRI_2018-07-12 1.88
178        TRI_2021-02-14 1.88
179        TRI_2018-09-07 1.87
180        TRI_2020-05-22 1.86
181        TRI_2021-05-25 1.86
182        TRI_2017-12-14 1.83
183        TRI_2017-02-18 1.80
184        TRI_2018-06-07 1.79
185        TRI_2017-07-11 1.78
186        TRI_2021-08-02 1.76
187        TRI_2020-12-24 1.75
188        TRI_2021-07-13 1.74
189        TRI_2020-12-10 1.68
190        TRI_2017-09-12 1.66
191        TRI_2017-04-13 1.65
192        TRI_2021-05-01 1.65
193        TRI_2020-10-24 1.64
194        TRI_2017-02-20 1.63
195        TRI_2021-07-19 1.63
196        TRI_2018-01-04 1.62
197        TRI_2021-05-22 1.60
198        TRI_2018-03-28 1.59
199        TRI_2020-07-09 1.59
200        TRI_2018-05-31 1.58
201        TRI_2018-08-23 1.56
202        TRI_2020-07-02 1.56
203        TRI_2020-08-01 1.56
204        TRI_2018-09-05 1.53
205        TRI_2017-07-21 1.52
206        TRI_2021-07-09 1.51
207        TRI_2020-06-19 1.46
208        TRI_2018-12-19 1.44
209        TRI_2021-01-27 1.42
210        TRI_2017-09-14 1.41
211        TRI_2020-12-08 1.41
212        TRI_2021-12-08 1.41
213        TRI_2021-12-31 1.37
214        TRI_2021-01-04 1.34
215        TRI_2021-01-02 1.33
216        TRI_2021-05-14 1.32
217        TRI_2020-07-31 1.31
218        TRI_2021-08-13 1.31
219        TRI_2020-07-15 1.30
220        TRI_2020-07-20 1.30
221        TRI_2020-04-29 1.29
222        TRI_2017-02-21 1.28
223        TRI_2017-09-16 1.27
224        TRI_2018-01-18 1.26
225        TRI_2018-07-05 1.26
226        TRI_2018-10-25 1.26
227        TRI_2018-09-02 1.24
228        TRI_2018-11-13 1.21
229        TRI_2020-12-22 1.21
230        TRI_2020-08-09 1.20
231        TRI_2017-04-12 1.19
232        TRI_2021-04-05 1.19
233        TRI_2018-05-09 1.18
234        TRI_2020-02-25 1.18
235        TRI_2020-07-10 1.18
236        TRI_2021-03-22 1.18
237        TRI_2020-06-18 1.17
238        TRI_2017-08-18 1.15
239        TRI_2018-05-13 1.15
240        TRI_2021-02-25 1.15
241        TRI_2020-01-03 1.14
242        TRI_2017-04-27 1.13
243        TRI_2018-06-08 1.13
244        TRI_2018-03-03 1.11
245        TRI_2021-02-17 1.11
246        TRI_2021-11-04 1.11
247        TRI_2021-12-07 1.11
248        TRI_2017-03-16 1.09
249        TRI_2017-10-03 1.09
250        TRI_2017-10-04 1.09
251        TRI_2020-01-30 1.09
252        TRI_2021-02-07 1.09
253        TRI_2017-09-08 1.07
254        TRI_2018-03-07 1.07
255        TRI_2018-05-02 1.07
256        TRI_2021-01-18 1.07
257        TRI_2018-02-01 1.06
258        TRI_2018-09-20 1.06
259        TRI_2018-07-21 1.05
260        TRI_2020-06-28 1.04
261        TRI_2017-11-06 1.03
262        TRI_2018-02-14 1.03
263        TRI_2020-06-07 1.02
264        TRI_2018-04-25 1.01
265        TRI_2020-09-25 1.01
266        TRI_2020-12-27 1.00
267        TRI_2021-05-03 1.00
268        TRI_2021-10-22 0.99
269        TRI_2017-10-25 0.98
270        TRI_2018-08-11 0.98
271        TRI_2021-05-06 0.98
272        TRI_2018-09-30 0.97
273        TRI_2021-06-23 0.97
274        TRI_2021-11-25 0.97
275        TRI_2020-04-23 0.96
276        TRI_2021-12-29 0.96
277        TRI_2017-04-26 0.95
278        TRI_2017-06-20 0.92
279        TRI_2018-10-22 0.92
280        TRI_2018-11-03 0.92
281        TRI_2020-09-05 0.91
282        TRI_2021-09-17 0.91
283        TRI_2017-06-09 0.90
284        TRI_2017-12-06 0.90
285        TRI_2017-12-30 0.90
286        TRI_2020-11-10 0.90
287        TRI_2021-04-08 0.90
288        TRI_2018-06-27 0.89
289        TRI_2020-12-06 0.89
290        TRI_2017-08-13 0.87
291        TRI_2020-07-21 0.85
292        TRI_2021-11-01 0.85
293        TRI_2021-11-03 0.84
294        TRI_2017-05-06 0.83
295        TRI_2021-06-24 0.82
296        TRI_2017-05-05 0.81
297        TRI_2021-07-26 0.81
298        TRI_2021-10-21 0.81
299        TRI_2017-06-05 0.80
300        TRI_2017-12-23 0.80
301        TRI_2020-08-22 0.80
302        TRI_2021-02-02 0.79
303        TRI_2018-03-02 0.77
304        TRI_2020-06-13 0.77
305        TRI_2018-07-20 0.75
306        TRI_2020-08-03 0.72
307        TRI_2017-04-05 0.71
308        TRI_2017-04-14 0.71
309        TRI_2020-01-12 0.71
310        TRI_2021-05-15 0.71
311        TRI_2021-12-19 0.71
312        TRI_2020-02-28 0.70
313        TRI_2018-07-08 0.69
314        TRI_2018-03-18 0.67
315        TRI_2018-09-21 0.67
316        TRI_2021-04-01 0.67
317        TRI_2018-03-06 0.66
318        TRI_2017-06-21 0.65
319        TRI_2017-09-04 0.65
320        TRI_2020-08-27 0.65
321        TRI_2020-04-28 0.63
322        TRI_2020-07-08 0.61
323        TRI_2021-05-20 0.61
324        TRI_2018-03-27 0.60
325        TRI_2020-12-05 0.60
326        TRI_2017-11-28 0.58
327        TRI_2020-05-20 0.57
328        TRI_2017-01-15 0.56
329        TRI_2017-11-14 0.56
330        TRI_2020-12-02 0.54
331        TRI_2017-09-03 0.51
332        TRI_2020-02-27 0.50
333        TRI_2021-02-01 0.50
334        TRI_2017-10-29 0.49
335        TRI_2017-03-17 0.48
336        TRI_2021-09-15 0.48
337        TRI_2021-07-01 0.47
338        TRI_2017-10-05 0.46
339        TRI_2020-01-26 0.46
340        TRI_2021-08-15 0.46
341        TRI_2021-06-11 0.45
342        TRI_2017-11-30 0.44
343        TRI_2021-08-24 0.44
344        TRI_2017-02-22 0.43
345        TRI_2018-06-11 0.43
346        TRI_2021-07-10 0.43
347        TRI_2018-11-04 0.42
348        TRI_2020-08-29 0.41
349        TRI_2018-09-01 0.40
350        TRI_2018-10-23 0.40
351        TRI_2021-07-28 0.40
352        TRI_2021-10-04 0.40
353        TRI_2020-02-14 0.39
354        TRI_2020-05-04 0.39
355        TRI_2017-03-02 0.38
356        TRI_2018-12-02 0.38
357        TRI_2021-09-27 0.38
358        TRI_2017-03-01 0.37
359        TRI_2020-10-31 0.37
360        TRI_2021-07-22 0.37
361        TRI_2018-06-28 0.36
362        TRI_2021-12-04 0.36
363        TRI_2018-06-20 0.35
364        TRI_2021-12-26 0.35
365        TRI_2018-10-28 0.33
366        TRI_2017-06-30 0.32
367        TRI_2017-12-31 0.32
368        TRI_2021-08-19 0.32
369        TRI_2017-08-31 0.31
370        TRI_2020-02-03 0.31
371        TRI_2021-07-21 0.31
372        TRI_2017-08-11 0.29
373        TRI_2020-10-11 0.29
374        TRI_2018-08-13 0.28
375        TRI_2018-03-13 0.27
376        TRI_2018-08-25 0.27
377        TRI_2018-12-20 0.27
378        TRI_2017-07-24 0.26
379        TRI_2021-04-30 0.26
380        TRI_2021-11-30 0.26
381        TRI_2020-02-22 0.25
382        TRI_2021-08-30 0.25
383        TRI_2017-08-19 0.24
384        TRI_2018-05-22 0.24
385        TRI_2020-03-13 0.24
386        TRI_2021-06-22 0.24
387        TRI_2020-06-14 0.23
388        TRI_2020-02-06 0.22
389        TRI_2018-03-16 0.21
390        TRI_2021-03-23 0.21
391        TRI_2017-06-12 0.20
392        TRI_2020-02-21 0.20
393        TRI_2020-06-11 0.19
394        TRI_2020-11-18 0.19
395        TRI_2017-06-22 0.18
396        TRI_2018-02-11 0.18
397        TRI_2018-06-04 0.18
398        TRI_2020-06-15 0.18
399        TRI_2021-02-08 0.18
400        TRI_2017-08-22 0.17
401        TRI_2017-03-15 0.16
402        TRI_2020-08-13 0.15
403        TRI_2017-10-11 0.14
404        TRI_2018-04-01 0.14
405        TRI_2018-03-25 0.13
406        TRI_2021-05-16 0.13
407        TRI_2020-04-12 0.11
408        TRI_2021-01-01 0.10
409        TRI_2018-11-25 0.09
410        TRI_2020-09-30 0.09
411        TRI_2021-04-04 0.09
412        TRI_2017-08-08 0.06
413        TRI_2020-09-24 0.04
414        TRI_2017-01-01 0.00
415        TRI_2017-01-02 0.00
416        TRI_2017-01-03 0.00
417        TRI_2017-01-04 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)