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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 :

Genève (236 km) CHE

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_2017-05-04 201.48
2        TRI_2017-02-26 121.36
3        TRI_2017-06-09 56.35
4        TRI_2017-04-09 51.37
5        TRI_2017-11-02 40.88
6        TRI_2018-11-13 24.57
7        TRI_2017-07-07 23.99
8        TRI_2017-06-02 23.98
9        TRI_2018-09-18 22.70
10        TRI_2018-12-02 22.68
11        TRI_2017-09-09 22.63
12        TRI_2017-06-20 22.22
13        TRI_2018-05-08 20.58
14        TRI_2017-10-20 18.16
15        TRI_2020-05-09 18.02
16        TRI_2020-08-12 17.69
17        TRI_2021-11-27 16.88
18        TRI_2020-04-01 16.59
19        TRI_2018-04-22 14.68
20        TRI_2017-06-03 13.71
21        TRI_2017-08-08 13.56
22        TRI_2018-10-06 13.48
23        TRI_2020-07-21 13.48
24        TRI_2018-11-30 13.44
25        TRI_2020-08-10 13.08
26        TRI_2021-06-22 12.89
27        TRI_2021-06-03 12.88
28        TRI_2020-06-27 12.83
29        TRI_2021-07-12 12.39
30        TRI_2017-04-01 12.19
31        TRI_2017-10-11 11.97
32        TRI_2018-06-04 11.96
33        TRI_2018-04-21 11.80
34        TRI_2021-05-08 11.79
35        TRI_2020-11-02 10.97
36        TRI_2017-05-27 10.90
37        TRI_2020-08-16 10.66
38        TRI_2018-07-02 10.51
39        TRI_2021-11-02 9.73
40        TRI_2020-10-31 9.70
41        TRI_2018-09-12 9.54
42        TRI_2020-12-20 8.82
43        TRI_2018-01-05 8.76
44        TRI_2020-05-05 8.75
45        TRI_2020-04-11 8.45
46        TRI_2021-03-31 8.36
47        TRI_2020-07-01 8.12
48        TRI_2017-03-22 8.06
49        TRI_2020-07-28 8.03
50        TRI_2017-09-29 7.92
51        TRI_2017-02-05 7.74
52        TRI_2020-06-03 7.59
53        TRI_2021-02-25 7.52
54        TRI_2021-06-28 7.34
55        TRI_2021-09-23 7.28
56        TRI_2017-07-17 7.20
57        TRI_2020-09-23 7.10
58        TRI_2017-02-28 7.09
59        TRI_2017-08-02 7.09
60        TRI_2021-10-18 6.88
61        TRI_2017-09-27 6.76
62        TRI_2020-05-10 6.74
63        TRI_2018-10-12 6.73
64        TRI_2020-09-21 6.70
65        TRI_2017-08-03 6.60
66        TRI_2017-08-28 6.60
67        TRI_2020-09-14 6.59
68        TRI_2017-11-28 6.57
69        TRI_2017-06-27 6.56
70        TRI_2017-10-21 6.54
71        TRI_2021-09-13 6.23
72        TRI_2018-09-17 6.22
73        TRI_2018-04-20 6.21
74        TRI_2017-02-23 6.15
75        TRI_2018-12-13 6.03
76        TRI_2020-04-12 6.03
77        TRI_2018-06-05 6.02
78        TRI_2020-11-09 5.93
79        TRI_2020-12-29 5.90
80        TRI_2018-07-27 5.87
81        TRI_2017-01-02 5.86
82        TRI_2020-03-16 5.82
83        TRI_2020-05-04 5.81
84        TRI_2020-06-01 5.68
85        TRI_2021-05-11 5.50
86        TRI_2021-05-04 5.48
87        TRI_2018-01-16 5.35
88        TRI_2021-12-28 5.34
89        TRI_2017-06-30 5.32
90        TRI_2021-04-11 5.32
91        TRI_2018-10-30 5.29
92        TRI_2020-04-30 5.20
93        TRI_2021-04-24 5.20
94        TRI_2018-02-17 5.11
95        TRI_2018-08-08 5.08
96        TRI_2018-07-01 5.01
97        TRI_2017-08-23 4.99
98        TRI_2017-02-03 4.98
99        TRI_2018-06-03 4.92
100        TRI_2017-03-05 4.90
101        TRI_2021-07-04 4.90
102        TRI_2020-10-01 4.88
103        TRI_2020-12-23 4.87
104        TRI_2017-06-21 4.76
105        TRI_2017-06-08 4.72
106        TRI_2020-03-19 4.71
107        TRI_2017-09-14 4.65
108        TRI_2017-08-24 4.45
109        TRI_2021-08-07 4.45
110        TRI_2020-10-05 4.39
111        TRI_2021-02-08 4.33
112        TRI_2017-06-29 4.31
113        TRI_2017-12-14 4.28
114        TRI_2021-07-06 4.21
115        TRI_2017-08-27 4.18
116        TRI_2017-09-26 4.17
117        TRI_2018-05-12 4.04
118        TRI_2020-11-01 4.01
119        TRI_2018-11-21 3.93
120        TRI_2017-12-25 3.84
121        TRI_2017-12-08 3.82
122        TRI_2018-05-07 3.81
123        TRI_2020-03-18 3.80
124        TRI_2020-08-13 3.78
125        TRI_2020-01-13 3.75
126        TRI_2020-12-31 3.74
127        TRI_2020-09-05 3.69
128        TRI_2020-06-25 3.68
129        TRI_2018-12-21 3.62
130        TRI_2017-03-31 3.61
131        TRI_2020-04-16 3.61
132        TRI_2017-08-29 3.59
133        TRI_2018-10-29 3.59
134        TRI_2017-06-06 3.58
135        TRI_2018-09-25 3.49
136        TRI_2017-07-04 3.48
137        TRI_2018-12-19 3.48
138        TRI_2020-08-21 3.47
139        TRI_2017-07-30 3.44
140        TRI_2018-09-30 3.44
141        TRI_2017-04-23 3.42
142        TRI_2017-08-07 3.33
143        TRI_2020-01-03 3.25
144        TRI_2020-05-01 3.25
145        TRI_2021-10-21 3.23
146        TRI_2020-04-17 3.22
147        TRI_2017-09-28 3.20
148        TRI_2018-09-05 3.16
149        TRI_2020-04-06 3.16
150        TRI_2020-07-27 3.15
151        TRI_2018-05-31 3.11
152        TRI_2017-12-15 3.02
153        TRI_2020-04-22 3.02
154        TRI_2017-07-29 2.98
155        TRI_2020-12-14 2.98
156        TRI_2020-08-19 2.97
157        TRI_2018-08-12 2.96
158        TRI_2017-07-10 2.94
159        TRI_2020-05-11 2.94
160        TRI_2020-10-04 2.93
161        TRI_2017-04-08 2.92
162        TRI_2020-10-06 2.92
163        TRI_2017-06-22 2.86
164        TRI_2018-10-04 2.86
165        TRI_2020-12-28 2.86
166        TRI_2021-06-16 2.78
167        TRI_2017-11-22 2.73
168        TRI_2018-10-05 2.72
169        TRI_2020-05-22 2.72
170        TRI_2017-12-30 2.70
171        TRI_2017-06-13 2.69
172        TRI_2017-12-31 2.65
173        TRI_2018-04-27 2.62
174        TRI_2020-06-11 2.59
175        TRI_2017-05-03 2.58
176        TRI_2021-12-25 2.56
177        TRI_2017-05-02 2.55
178        TRI_2020-01-28 2.55
179        TRI_2021-05-16 2.52
180        TRI_2021-05-24 2.52
181        TRI_2020-06-23 2.47
182        TRI_2018-01-31 2.46
183        TRI_2020-09-04 2.46
184        TRI_2017-03-02 2.44
185        TRI_2021-07-24 2.44
186        TRI_2017-10-31 2.41
187        TRI_2018-03-24 2.41
188        TRI_2020-07-20 2.37
189        TRI_2021-02-01 2.37
190        TRI_2018-04-12 2.36
191        TRI_2017-06-19 2.34
192        TRI_2021-08-14 2.34
193        TRI_2020-06-24 2.32
194        TRI_2021-07-27 2.28
195        TRI_2021-06-04 2.27
196        TRI_2017-05-06 2.23
197        TRI_2020-01-06 2.22
198        TRI_2017-10-19 2.21
199        TRI_2018-04-08 2.16
200        TRI_2018-06-11 2.16
201        TRI_2020-12-07 2.14
202        TRI_2017-11-24 2.11
203        TRI_2018-08-29 2.10
204        TRI_2018-09-15 2.10
205        TRI_2018-08-16 2.09
206        TRI_2020-07-30 2.09
207        TRI_2017-07-22 2.07
208        TRI_2021-02-19 2.05
209        TRI_2021-03-04 2.03
210        TRI_2020-08-15 2.02
211        TRI_2021-12-04 1.99
212        TRI_2020-04-10 1.96
213        TRI_2020-11-18 1.95
214        TRI_2021-04-30 1.89
215        TRI_2017-12-06 1.82
216        TRI_2021-10-01 1.82
217        TRI_2021-05-31 1.80
218        TRI_2018-05-23 1.79
219        TRI_2017-05-30 1.78
220        TRI_2021-06-17 1.77
221        TRI_2018-08-13 1.75
222        TRI_2018-03-03 1.73
223        TRI_2020-09-20 1.73
224        TRI_2020-10-23 1.71
225        TRI_2017-05-26 1.68
226        TRI_2021-03-11 1.68
227        TRI_2018-07-04 1.67
228        TRI_2020-08-20 1.65
229        TRI_2020-04-09 1.64
230        TRI_2017-06-28 1.60
231        TRI_2017-05-28 1.59
232        TRI_2021-05-21 1.58
233        TRI_2017-07-20 1.57
234        TRI_2017-08-15 1.55
235        TRI_2021-02-14 1.55
236        TRI_2018-05-25 1.54
237        TRI_2017-10-17 1.53
238        TRI_2017-04-24 1.51
239        TRI_2018-08-06 1.46
240        TRI_2017-04-25 1.45
241        TRI_2017-12-12 1.43
242        TRI_2021-10-19 1.42
243        TRI_2018-02-15 1.41
244        TRI_2020-03-01 1.41
245        TRI_2018-06-02 1.38
246        TRI_2021-05-15 1.36
247        TRI_2017-03-27 1.35
248        TRI_2017-12-07 1.35
249        TRI_2020-06-26 1.35
250        TRI_2020-06-04 1.32
251        TRI_2017-07-08 1.31
252        TRI_2017-05-29 1.29
253        TRI_2018-09-16 1.29
254        TRI_2021-11-19 1.29
255        TRI_2017-08-22 1.28
256        TRI_2018-05-11 1.28
257        TRI_2020-09-22 1.28
258        TRI_2020-07-31 1.25
259        TRI_2020-02-13 1.23
260        TRI_2020-05-08 1.21
261        TRI_2020-10-25 1.21
262        TRI_2018-01-10 1.20
263        TRI_2021-04-29 1.19
264        TRI_2020-02-10 1.18
265        TRI_2020-01-12 1.17
266        TRI_2021-06-01 1.16
267        TRI_2020-02-17 1.14
268        TRI_2021-07-29 1.14
269        TRI_2018-03-02 1.12
270        TRI_2021-08-12 1.12
271        TRI_2020-06-13 1.11
272        TRI_2017-05-22 1.10
273        TRI_2018-02-16 1.10
274        TRI_2020-02-01 1.10
275        TRI_2021-07-03 1.10
276        TRI_2021-03-06 1.08
277        TRI_2021-06-23 1.05
278        TRI_2017-08-13 1.04
279        TRI_2020-08-09 1.04
280        TRI_2018-09-10 1.03
281        TRI_2020-02-15 1.03
282        TRI_2021-06-18 1.02
283        TRI_2021-11-20 1.02
284        TRI_2021-06-15 1.01
285        TRI_2021-07-30 1.01
286        TRI_2021-12-27 1.01
287        TRI_2021-09-06 1.00
288        TRI_2018-06-06 0.99
289        TRI_2021-03-30 0.98
290        TRI_2020-02-16 0.97
291        TRI_2018-03-05 0.94
292        TRI_2018-07-14 0.94
293        TRI_2017-12-10 0.93
294        TRI_2021-09-07 0.93
295        TRI_2020-02-06 0.91
296        TRI_2018-11-29 0.89
297        TRI_2020-12-21 0.89
298        TRI_2017-03-16 0.87
299        TRI_2017-09-25 0.87
300        TRI_2020-02-08 0.87
301        TRI_2021-08-13 0.87
302        TRI_2021-05-06 0.84
303        TRI_2017-05-17 0.81
304        TRI_2021-09-25 0.81
305        TRI_2017-10-13 0.80
306        TRI_2021-08-21 0.80
307        TRI_2018-05-19 0.79
308        TRI_2021-02-09 0.78
309        TRI_2021-03-26 0.77
310        TRI_2018-05-24 0.76
311        TRI_2020-09-03 0.73
312        TRI_2018-03-14 0.72
313        TRI_2018-08-28 0.72
314        TRI_2021-04-08 0.72
315        TRI_2021-04-27 0.70
316        TRI_2018-01-15 0.69
317        TRI_2020-01-26 0.68
318        TRI_2017-05-05 0.67
319        TRI_2018-10-28 0.65
320        TRI_2018-05-06 0.64
321        TRI_2018-06-10 0.63
322        TRI_2018-09-04 0.63
323        TRI_2017-03-30 0.62
324        TRI_2018-05-30 0.62
325        TRI_2017-09-30 0.61
326        TRI_2020-05-13 0.61
327        TRI_2021-04-23 0.61
328        TRI_2017-12-26 0.59
329        TRI_2020-02-27 0.59
330        TRI_2021-09-15 0.59
331        TRI_2020-03-05 0.56
332        TRI_2020-04-26 0.56
333        TRI_2018-04-30 0.55
334        TRI_2020-08-11 0.54
335        TRI_2020-07-29 0.50
336        TRI_2020-05-31 0.49
337        TRI_2018-03-29 0.48
338        TRI_2020-01-08 0.47
339        TRI_2021-06-26 0.47
340        TRI_2017-03-06 0.45
341        TRI_2017-01-30 0.44
342        TRI_2017-07-21 0.44
343        TRI_2018-02-01 0.44
344        TRI_2021-04-10 0.42
345        TRI_2021-06-19 0.42
346        TRI_2018-08-31 0.40
347        TRI_2020-06-02 0.38
348        TRI_2017-06-11 0.36
349        TRI_2018-01-18 0.36
350        TRI_2018-09-20 0.33
351        TRI_2020-04-27 0.33
352        TRI_2017-07-03 0.30
353        TRI_2018-05-29 0.30
354        TRI_2018-06-07 0.28
355        TRI_2017-04-07 0.27
356        TRI_2021-06-21 0.27
357        TRI_2018-09-26 0.25
358        TRI_2018-09-28 0.25
359        TRI_2020-02-14 0.25
360        TRI_2021-08-04 0.24
361        TRI_2017-02-25 0.23
362        TRI_2017-08-25 0.23
363        TRI_2021-02-17 0.23
364        TRI_2018-01-23 0.22
365        TRI_2018-02-05 0.21
366        TRI_2020-05-12 0.19
367        TRI_2017-08-14 0.18
368        TRI_2021-05-07 0.18
369        TRI_2018-09-21 0.15
370        TRI_2021-05-10 0.13
371        TRI_2017-03-21 0.12
372        TRI_2020-07-19 0.11
373        TRI_2018-07-26 0.10
374        TRI_2021-10-04 0.08
375        TRI_2017-07-28 0.07
376        TRI_2017-01-01 0.00
377        TRI_2017-01-03 0.00
378        TRI_2017-01-04 0.00
379        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)