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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 :

Alès (56 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_2018-11-15 198.42
2        TRI_2020-01-26 158.24
3        TRI_2021-09-26 146.21
4        TRI_2020-01-25 100.05
5        TRI_2017-03-16 94.09
6        TRI_2018-11-23 76.26
7        TRI_2017-12-07 74.16
8        TRI_2017-06-11 70.45
9        TRI_2018-11-22 62.42
10        TRI_2020-09-20 61.64
11        TRI_2018-06-04 60.34
12        TRI_2020-12-16 60.11
13        TRI_2017-08-18 55.39
14        TRI_2018-10-16 54.04
15        TRI_2017-10-13 51.45
16        TRI_2020-11-12 50.83
17        TRI_2017-06-14 50.80
18        TRI_2018-01-14 50.57
19        TRI_2018-09-16 50.39
20        TRI_2020-11-26 49.69
21        TRI_2018-04-12 48.47
22        TRI_2017-02-15 47.67
23        TRI_2018-05-31 40.95
24        TRI_2021-03-01 40.90
25        TRI_2020-01-06 40.77
26        TRI_2021-12-25 40.72
27        TRI_2017-08-14 39.94
28        TRI_2018-06-29 39.40
29        TRI_2017-04-26 37.58
30        TRI_2018-10-11 36.99
31        TRI_2018-05-30 36.86
32        TRI_2018-12-13 36.47
33        TRI_2018-04-21 36.11
34        TRI_2017-09-22 35.67
35        TRI_2020-09-04 35.67
36        TRI_2020-04-22 35.23
37        TRI_2017-01-03 34.29
38        TRI_2018-04-09 34.24
39        TRI_2021-03-26 34.21
40        TRI_2020-07-30 33.02
41        TRI_2018-09-30 32.94
42        TRI_2017-03-26 31.23
43        TRI_2018-01-09 31.16
44        TRI_2021-12-24 30.72
45        TRI_2018-03-04 30.48
46        TRI_2018-11-21 29.73
47        TRI_2018-09-05 28.90
48        TRI_2018-11-30 28.38
49        TRI_2017-11-01 27.73
50        TRI_2018-09-10 27.32
51        TRI_2021-04-26 27.09
52        TRI_2018-01-07 26.72
53        TRI_2021-08-12 25.66
54        TRI_2020-01-16 23.21
55        TRI_2018-06-20 23.19
56        TRI_2018-04-20 23.01
57        TRI_2018-08-16 22.94
58        TRI_2021-07-23 22.94
59        TRI_2018-02-16 22.48
60        TRI_2020-08-06 22.46
61        TRI_2021-10-17 21.82
62        TRI_2018-05-21 20.39
63        TRI_2020-03-23 20.23
64        TRI_2018-04-06 20.08
65        TRI_2018-10-10 19.95
66        TRI_2018-04-28 19.94
67        TRI_2017-04-24 19.87
68        TRI_2018-10-05 19.32
69        TRI_2021-09-23 19.12
70        TRI_2021-10-24 19.09
71        TRI_2020-01-24 18.49
72        TRI_2018-04-27 18.32
73        TRI_2017-06-13 18.28
74        TRI_2018-06-07 18.09
75        TRI_2018-06-02 17.73
76        TRI_2017-12-06 17.45
77        TRI_2020-12-17 17.38
78        TRI_2018-07-24 17.16
79        TRI_2018-07-14 17.03
80        TRI_2017-12-31 17.00
81        TRI_2018-07-04 16.75
82        TRI_2020-04-08 16.65
83        TRI_2018-11-20 16.60
84        TRI_2018-07-20 16.58
85        TRI_2018-09-28 16.53
86        TRI_2021-01-19 16.45
87        TRI_2021-09-03 16.44
88        TRI_2021-04-30 15.95
89        TRI_2018-11-14 15.88
90        TRI_2017-05-31 15.62
91        TRI_2018-02-05 15.33
92        TRI_2017-09-21 15.31
93        TRI_2018-02-28 15.23
94        TRI_2020-08-15 15.00
95        TRI_2018-04-14 14.99
96        TRI_2017-04-01 14.84
97        TRI_2018-01-24 14.15
98        TRI_2018-03-24 13.78
99        TRI_2017-02-10 13.75
100        TRI_2017-09-27 13.72
101        TRI_2018-01-08 13.62
102        TRI_2018-05-06 13.61
103        TRI_2018-09-09 13.57
104        TRI_2021-10-28 13.56
105        TRI_2018-04-19 13.15
106        TRI_2020-03-18 13.03
107        TRI_2020-04-23 12.87
108        TRI_2020-07-19 12.00
109        TRI_2017-03-30 11.77
110        TRI_2018-03-16 11.50
111        TRI_2020-04-09 11.32
112        TRI_2017-08-22 11.00
113        TRI_2020-01-12 11.00
114        TRI_2020-04-15 10.92
115        TRI_2017-09-26 10.67
116        TRI_2021-10-01 10.52
117        TRI_2020-07-29 10.28
118        TRI_2020-08-08 10.14
119        TRI_2020-10-19 10.14
120        TRI_2018-07-15 10.08
121        TRI_2018-09-25 9.83
122        TRI_2017-08-28 9.59
123        TRI_2020-11-27 9.48
124        TRI_2020-03-17 9.44
125        TRI_2020-03-25 9.43
126        TRI_2017-05-03 9.42
127        TRI_2018-11-13 9.28
128        TRI_2017-03-02 9.23
129        TRI_2018-01-13 9.14
130        TRI_2020-10-31 9.06
131        TRI_2018-12-18 9.04
132        TRI_2020-06-23 8.91
133        TRI_2017-07-21 8.85
134        TRI_2021-12-17 8.85
135        TRI_2020-04-07 8.76
136        TRI_2020-03-15 8.36
137        TRI_2020-02-15 8.12
138        TRI_2021-08-14 8.08
139        TRI_2018-08-12 7.94
140        TRI_2018-08-22 7.90
141        TRI_2018-08-28 7.89
142        TRI_2017-09-30 7.78
143        TRI_2017-05-10 7.73
144        TRI_2021-02-12 7.67
145        TRI_2017-07-04 7.59
146        TRI_2020-09-15 7.50
147        TRI_2020-03-21 7.49
148        TRI_2018-05-27 7.30
149        TRI_2020-11-06 7.27
150        TRI_2020-04-21 6.97
151        TRI_2021-10-14 6.92
152        TRI_2021-05-30 6.91
153        TRI_2021-04-23 6.80
154        TRI_2021-12-22 6.80
155        TRI_2020-04-04 6.74
156        TRI_2021-04-22 6.59
157        TRI_2018-06-01 6.38
158        TRI_2020-05-11 6.10
159        TRI_2020-04-28 5.95
160        TRI_2018-08-06 5.83
161        TRI_2018-05-28 5.77
162        TRI_2018-04-11 5.43
163        TRI_2021-08-10 5.32
164        TRI_2017-10-31 5.28
165        TRI_2020-05-13 5.21
166        TRI_2021-10-27 5.21
167        TRI_2017-01-02 5.20
168        TRI_2021-01-04 5.19
169        TRI_2018-11-08 5.18
170        TRI_2018-11-19 5.02
171        TRI_2017-07-29 4.95
172        TRI_2020-02-06 4.92
173        TRI_2020-08-07 4.92
174        TRI_2017-09-23 4.77
175        TRI_2018-05-20 4.69
176        TRI_2018-06-11 4.62
177        TRI_2021-03-06 4.49
178        TRI_2020-01-23 4.40
179        TRI_2017-05-16 4.34
180        TRI_2020-04-13 4.10
181        TRI_2018-09-20 4.05
182        TRI_2018-09-04 4.02
183        TRI_2018-08-05 3.98
184        TRI_2020-07-27 3.97
185        TRI_2017-06-08 3.92
186        TRI_2017-08-27 3.90
187        TRI_2018-07-26 3.84
188        TRI_2021-03-31 3.84
189        TRI_2021-09-02 3.82
190        TRI_2021-10-09 3.77
191        TRI_2021-04-27 3.76
192        TRI_2020-05-04 3.71
193        TRI_2021-11-20 3.50
194        TRI_2020-09-17 3.43
195        TRI_2020-09-13 3.41
196        TRI_2020-03-24 3.38
197        TRI_2021-12-20 3.29
198        TRI_2017-06-26 3.23
199        TRI_2018-10-04 3.18
200        TRI_2021-04-21 3.17
201        TRI_2017-01-20 3.13
202        TRI_2020-11-22 3.09
203        TRI_2021-09-05 3.09
204        TRI_2018-05-11 3.02
205        TRI_2021-09-06 2.92
206        TRI_2020-01-02 2.90
207        TRI_2021-04-01 2.88
208        TRI_2020-05-29 2.85
209        TRI_2017-04-23 2.84
210        TRI_2018-10-09 2.78
211        TRI_2017-11-02 2.74
212        TRI_2020-03-20 2.66
213        TRI_2021-03-28 2.59
214        TRI_2021-04-20 2.56
215        TRI_2018-02-06 2.50
216        TRI_2021-07-04 2.49
217        TRI_2017-02-14 2.46
218        TRI_2018-06-30 2.45
219        TRI_2017-02-25 2.38
220        TRI_2021-06-26 2.35
221        TRI_2018-05-01 2.31
222        TRI_2020-12-07 2.17
223        TRI_2021-12-18 2.12
224        TRI_2020-01-13 2.10
225        TRI_2021-02-14 2.10
226        TRI_2017-06-21 2.01
227        TRI_2020-05-22 2.01
228        TRI_2017-04-29 1.97
229        TRI_2020-04-24 1.96
230        TRI_2017-04-07 1.94
231        TRI_2017-08-07 1.93
232        TRI_2018-09-27 1.91
233        TRI_2021-11-16 1.91
234        TRI_2021-11-11 1.89
235        TRI_2018-11-18 1.88
236        TRI_2020-01-22 1.88
237        TRI_2020-04-19 1.86
238        TRI_2020-05-25 1.85
239        TRI_2020-05-14 1.83
240        TRI_2018-11-03 1.82
241        TRI_2017-10-25 1.80
242        TRI_2020-02-13 1.78
243        TRI_2018-07-03 1.77
244        TRI_2021-03-04 1.77
245        TRI_2020-03-30 1.72
246        TRI_2018-09-26 1.71
247        TRI_2020-07-31 1.69
248        TRI_2018-10-26 1.68
249        TRI_2018-03-14 1.66
250        TRI_2020-09-14 1.65
251        TRI_2021-04-29 1.61
252        TRI_2020-05-28 1.60
253        TRI_2020-11-17 1.60
254        TRI_2018-11-16 1.53
255        TRI_2020-02-14 1.53
256        TRI_2021-08-31 1.51
257        TRI_2021-11-24 1.47
258        TRI_2018-08-04 1.46
259        TRI_2021-09-24 1.44
260        TRI_2021-07-22 1.43
261        TRI_2017-07-20 1.42
262        TRI_2018-11-17 1.37
263        TRI_2021-08-11 1.37
264        TRI_2018-11-25 1.35
265        TRI_2020-01-05 1.35
266        TRI_2017-02-17 1.34
267        TRI_2017-06-09 1.33
268        TRI_2020-11-23 1.33
269        TRI_2018-01-23 1.31
270        TRI_2020-04-12 1.30
271        TRI_2017-04-08 1.27
272        TRI_2018-04-18 1.26
273        TRI_2021-11-19 1.19
274        TRI_2017-06-18 1.18
275        TRI_2018-09-08 1.18
276        TRI_2021-04-08 1.16
277        TRI_2017-05-21 1.14
278        TRI_2020-03-26 1.14
279        TRI_2021-06-14 1.12
280        TRI_2021-10-08 1.12
281        TRI_2021-10-04 1.11
282        TRI_2017-10-11 1.09
283        TRI_2018-08-17 1.07
284        TRI_2021-03-27 1.07
285        TRI_2018-10-07 1.06
286        TRI_2017-07-07 1.05
287        TRI_2017-05-04 1.04
288        TRI_2018-02-15 1.03
289        TRI_2020-07-10 1.03
290        TRI_2020-07-22 1.03
291        TRI_2017-01-28 1.01
292        TRI_2021-09-10 0.98
293        TRI_2021-10-22 0.98
294        TRI_2017-01-25 0.97
295        TRI_2021-07-27 0.96
296        TRI_2017-05-24 0.91
297        TRI_2018-09-03 0.91
298        TRI_2018-09-11 0.90
299        TRI_2020-11-28 0.90
300        TRI_2021-07-19 0.87
301        TRI_2017-05-09 0.85
302        TRI_2020-05-27 0.85
303        TRI_2021-02-04 0.85
304        TRI_2017-04-30 0.84
305        TRI_2020-08-19 0.84
306        TRI_2021-12-21 0.84
307        TRI_2018-07-29 0.81
308        TRI_2020-05-05 0.81
309        TRI_2020-12-31 0.80
310        TRI_2020-04-18 0.75
311        TRI_2021-06-15 0.74
312        TRI_2017-01-26 0.73
313        TRI_2018-07-28 0.72
314        TRI_2020-11-09 0.72
315        TRI_2018-01-10 0.69
316        TRI_2020-05-12 0.68
317        TRI_2020-09-03 0.67
318        TRI_2021-10-18 0.67
319        TRI_2020-03-29 0.66
320        TRI_2021-08-13 0.62
321        TRI_2018-10-27 0.60
322        TRI_2020-03-31 0.60
323        TRI_2017-03-25 0.59
324        TRI_2018-03-08 0.57
325        TRI_2020-06-02 0.56
326        TRI_2018-04-05 0.55
327        TRI_2021-02-26 0.54
328        TRI_2020-04-25 0.52
329        TRI_2020-06-28 0.52
330        TRI_2017-03-28 0.46
331        TRI_2021-06-27 0.46
332        TRI_2018-01-27 0.45
333        TRI_2017-03-15 0.44
334        TRI_2020-08-09 0.44
335        TRI_2020-10-18 0.44
336        TRI_2021-05-29 0.43
337        TRI_2021-06-22 0.42
338        TRI_2018-05-23 0.38
339        TRI_2021-02-09 0.38
340        TRI_2020-07-28 0.37
341        TRI_2017-10-04 0.36
342        TRI_2018-07-30 0.35
343        TRI_2020-03-22 0.35
344        TRI_2020-08-05 0.35
345        TRI_2020-05-10 0.34
346        TRI_2017-04-22 0.33
347        TRI_2020-04-10 0.33
348        TRI_2021-07-28 0.33
349        TRI_2018-10-28 0.30
350        TRI_2018-12-26 0.29
351        TRI_2020-05-07 0.25
352        TRI_2017-04-27 0.24
353        TRI_2017-06-06 0.24
354        TRI_2017-09-25 0.23
355        TRI_2020-02-07 0.23
356        TRI_2021-07-20 0.23
357        TRI_2021-09-30 0.21
358        TRI_2021-11-14 0.21
359        TRI_2017-07-03 0.20
360        TRI_2017-05-14 0.19
361        TRI_2020-08-13 0.19
362        TRI_2018-09-23 0.18
363        TRI_2017-02-16 0.16
364        TRI_2021-05-08 0.14
365        TRI_2017-08-31 0.13
366        TRI_2018-06-28 0.12
367        TRI_2020-04-02 0.10
368        TRI_2021-05-07 0.07
369        TRI_2018-03-13 0.04
370        TRI_2017-01-01 0.00
371        TRI_2017-01-04 0.00
372        TRI_2017-01-05 0.00
373        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)