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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 :

Savona (297 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 37.77
2        TRI_2018-06-01 34.06
3        TRI_2017-05-03 27.37
4        TRI_2018-05-14 23.49
5        TRI_2017-07-01 22.92
6        TRI_2017-05-19 20.55
7        TRI_2017-10-08 18.70
8        TRI_2018-01-30 14.47
9        TRI_2021-08-16 14.33
10        TRI_2017-06-12 14.32
11        TRI_2020-05-15 14.00
12        TRI_2020-06-09 13.37
13        TRI_2017-04-13 12.90
14        TRI_2018-07-12 12.69
15        TRI_2017-12-24 12.66
16        TRI_2017-03-18 12.46
17        TRI_2017-03-17 12.37
18        TRI_2018-07-18 11.18
19        TRI_2021-05-15 10.93
20        TRI_2020-01-30 10.88
21        TRI_2017-04-22 10.16
22        TRI_2021-05-26 10.11
23        TRI_2020-06-18 9.77
24        TRI_2021-07-20 9.69
25        TRI_2020-09-30 9.52
26        TRI_2018-07-19 9.37
27        TRI_2017-07-11 8.99
28        TRI_2021-03-25 8.88
29        TRI_2021-06-24 8.60
30        TRI_2017-04-23 8.55
31        TRI_2021-05-22 8.41
32        TRI_2020-02-25 8.19
33        TRI_2018-04-24 8.14
34        TRI_2020-05-01 7.97
35        TRI_2020-10-05 7.95
36        TRI_2018-09-03 7.93
37        TRI_2018-05-16 7.49
38        TRI_2020-07-08 7.41
39        TRI_2017-04-10 7.33
40        TRI_2020-05-30 7.19
41        TRI_2018-09-13 6.84
42        TRI_2017-02-20 6.77
43        TRI_2021-05-05 6.64
44        TRI_2020-08-17 6.53
45        TRI_2017-03-06 6.49
46        TRI_2018-03-14 6.46
47        TRI_2017-05-24 6.39
48        TRI_2018-05-15 6.39
49        TRI_2018-08-31 6.38
50        TRI_2017-03-02 6.34
51        TRI_2020-02-23 6.18
52        TRI_2017-10-05 6.15
53        TRI_2021-05-07 6.14
54        TRI_2020-02-27 6.12
55        TRI_2020-12-27 6.03
56        TRI_2017-09-16 5.93
57        TRI_2018-05-23 5.90
58        TRI_2021-08-13 5.48
59        TRI_2021-05-18 5.39
60        TRI_2017-04-07 5.38
61        TRI_2017-11-08 5.37
62        TRI_2021-03-24 5.05
63        TRI_2021-05-06 5.03
64        TRI_2017-03-16 5.02
65        TRI_2017-08-23 5.02
66        TRI_2017-06-06 4.99
67        TRI_2020-10-28 4.95
68        TRI_2021-11-20 4.90
69        TRI_2018-07-28 4.71
70        TRI_2017-04-21 4.64
71        TRI_2020-10-18 4.61
72        TRI_2018-07-21 4.52
73        TRI_2021-09-18 4.52
74        TRI_2017-07-28 4.47
75        TRI_2017-06-30 4.34
76        TRI_2021-09-12 4.32
77        TRI_2017-07-23 4.25
78        TRI_2021-11-02 4.20
79        TRI_2017-12-05 4.13
80        TRI_2020-05-12 4.12
81        TRI_2021-04-08 4.10
82        TRI_2020-08-14 4.09
83        TRI_2017-06-25 4.05
84        TRI_2017-06-21 4.00
85        TRI_2021-07-02 3.98
86        TRI_2020-07-25 3.96
87        TRI_2021-12-28 3.93
88        TRI_2020-02-13 3.92
89        TRI_2018-06-12 3.91
90        TRI_2021-06-22 3.90
91        TRI_2018-03-17 3.89
92        TRI_2018-01-29 3.87
93        TRI_2020-08-26 3.84
94        TRI_2018-03-12 3.75
95        TRI_2021-10-21 3.72
96        TRI_2017-11-20 3.71
97        TRI_2020-01-13 3.71
98        TRI_2018-03-29 3.66
99        TRI_2021-08-20 3.50
100        TRI_2020-07-19 3.46
101        TRI_2017-02-19 3.42
102        TRI_2018-06-29 3.37
103        TRI_2017-06-22 3.32
104        TRI_2021-07-29 3.31
105        TRI_2020-06-07 3.30
106        TRI_2017-10-25 3.28
107        TRI_2018-06-16 3.25
108        TRI_2017-09-14 3.24
109        TRI_2021-05-27 3.24
110        TRI_2017-09-13 3.22
111        TRI_2021-11-27 3.20
112        TRI_2020-07-26 3.19
113        TRI_2021-12-31 3.19
114        TRI_2017-10-07 3.16
115        TRI_2017-10-04 3.13
116        TRI_2021-06-29 3.11
117        TRI_2017-07-03 3.10
118        TRI_2018-05-31 3.10
119        TRI_2021-08-05 3.10
120        TRI_2021-08-30 3.10
121        TRI_2020-08-18 3.07
122        TRI_2017-09-17 3.05
123        TRI_2018-07-07 3.05
124        TRI_2017-06-13 3.04
125        TRI_2020-05-22 3.00
126        TRI_2020-01-01 2.98
127        TRI_2018-06-08 2.95
128        TRI_2021-03-11 2.93
129        TRI_2021-03-27 2.92
130        TRI_2021-07-10 2.91
131        TRI_2021-07-05 2.87
132        TRI_2020-09-23 2.81
133        TRI_2021-02-17 2.76
134        TRI_2020-07-10 2.67
135        TRI_2017-05-23 2.65
136        TRI_2021-01-04 2.65
137        TRI_2021-07-08 2.65
138        TRI_2017-06-04 2.57
139        TRI_2021-04-02 2.57
140        TRI_2021-12-18 2.55
141        TRI_2018-05-13 2.53
142        TRI_2017-04-09 2.48
143        TRI_2021-11-19 2.48
144        TRI_2020-07-22 2.43
145        TRI_2020-07-21 2.42
146        TRI_2021-02-01 2.42
147        TRI_2021-09-16 2.42
148        TRI_2020-10-13 2.36
149        TRI_2020-03-12 2.32
150        TRI_2021-12-20 2.32
151        TRI_2021-05-16 2.29
152        TRI_2020-12-24 2.28
153        TRI_2017-02-21 2.25
154        TRI_2018-06-07 2.25
155        TRI_2020-06-28 2.23
156        TRI_2017-07-27 2.21
157        TRI_2018-04-25 2.21
158        TRI_2018-08-29 2.18
159        TRI_2017-08-19 2.17
160        TRI_2017-12-15 2.17
161        TRI_2021-07-14 2.15
162        TRI_2021-07-31 2.15
163        TRI_2020-10-31 2.14
164        TRI_2021-02-08 2.11
165        TRI_2018-01-18 2.08
166        TRI_2017-05-22 2.06
167        TRI_2017-12-14 2.04
168        TRI_2020-08-25 2.04
169        TRI_2020-02-02 2.02
170        TRI_2020-03-28 2.02
171        TRI_2017-08-07 1.99
172        TRI_2020-06-11 1.99
173        TRI_2021-05-12 1.98
174        TRI_2020-06-23 1.96
175        TRI_2021-06-23 1.96
176        TRI_2021-05-13 1.95
177        TRI_2021-02-14 1.94
178        TRI_2017-10-28 1.88
179        TRI_2020-06-02 1.88
180        TRI_2020-06-04 1.85
181        TRI_2017-09-20 1.84
182        TRI_2018-10-25 1.82
183        TRI_2020-04-24 1.78
184        TRI_2021-06-12 1.78
185        TRI_2017-01-12 1.77
186        TRI_2021-10-10 1.76
187        TRI_2017-09-04 1.72
188        TRI_2018-07-14 1.72
189        TRI_2020-05-04 1.72
190        TRI_2017-09-05 1.71
191        TRI_2021-09-19 1.70
192        TRI_2020-06-13 1.65
193        TRI_2021-05-14 1.64
194        TRI_2017-02-18 1.63
195        TRI_2017-03-19 1.60
196        TRI_2017-12-06 1.58
197        TRI_2018-04-01 1.58
198        TRI_2017-07-04 1.57
199        TRI_2017-08-04 1.57
200        TRI_2018-01-04 1.55
201        TRI_2021-02-09 1.55
202        TRI_2017-08-13 1.53
203        TRI_2017-04-26 1.52
204        TRI_2021-08-26 1.52
205        TRI_2017-03-22 1.51
206        TRI_2021-07-03 1.51
207        TRI_2020-07-23 1.47
208        TRI_2017-09-08 1.46
209        TRI_2017-10-26 1.45
210        TRI_2018-07-20 1.44
211        TRI_2020-10-06 1.44
212        TRI_2021-08-04 1.44
213        TRI_2017-03-05 1.43
214        TRI_2018-03-28 1.43
215        TRI_2021-08-22 1.42
216        TRI_2018-03-06 1.41
217        TRI_2018-10-27 1.40
218        TRI_2020-01-03 1.40
219        TRI_2020-07-20 1.40
220        TRI_2021-08-21 1.39
221        TRI_2021-07-09 1.38
222        TRI_2017-02-15 1.36
223        TRI_2020-09-06 1.36
224        TRI_2020-07-09 1.34
225        TRI_2017-01-03 1.32
226        TRI_2017-06-24 1.30
227        TRI_2020-10-29 1.30
228        TRI_2017-11-19 1.28
229        TRI_2017-10-02 1.26
230        TRI_2020-08-31 1.25
231        TRI_2020-12-29 1.24
232        TRI_2021-03-13 1.24
233        TRI_2017-09-06 1.23
234        TRI_2021-01-19 1.23
235        TRI_2017-05-09 1.20
236        TRI_2018-07-08 1.19
237        TRI_2020-07-29 1.19
238        TRI_2018-07-30 1.17
239        TRI_2021-12-30 1.17
240        TRI_2021-12-19 1.14
241        TRI_2021-11-04 1.13
242        TRI_2017-12-31 1.12
243        TRI_2021-01-28 1.10
244        TRI_2018-04-23 1.08
245        TRI_2020-09-29 1.07
246        TRI_2020-06-06 1.06
247        TRI_2020-12-06 1.06
248        TRI_2021-04-19 1.05
249        TRI_2021-12-25 1.04
250        TRI_2017-03-15 1.03
251        TRI_2017-05-04 1.03
252        TRI_2017-07-21 1.03
253        TRI_2017-10-03 1.02
254        TRI_2021-08-03 1.02
255        TRI_2018-02-15 1.00
256        TRI_2018-07-03 1.00
257        TRI_2020-10-26 1.00
258        TRI_2017-02-05 0.99
259        TRI_2020-05-05 0.98
260        TRI_2020-07-27 0.97
261        TRI_2020-08-19 0.97
262        TRI_2018-02-08 0.96
263        TRI_2020-09-01 0.96
264        TRI_2021-08-08 0.96
265        TRI_2017-05-21 0.95
266        TRI_2020-02-14 0.94
267        TRI_2021-07-11 0.93
268        TRI_2017-12-23 0.92
269        TRI_2020-09-05 0.90
270        TRI_2017-06-14 0.86
271        TRI_2021-04-18 0.86
272        TRI_2018-09-01 0.85
273        TRI_2020-10-09 0.85
274        TRI_2020-07-30 0.84
275        TRI_2020-04-22 0.83
276        TRI_2021-11-30 0.83
277        TRI_2018-03-18 0.82
278        TRI_2018-08-13 0.82
279        TRI_2017-04-05 0.81
280        TRI_2017-09-09 0.81
281        TRI_2018-06-20 0.81
282        TRI_2020-09-24 0.81
283        TRI_2021-07-15 0.81
284        TRI_2017-08-28 0.80
285        TRI_2018-11-24 0.80
286        TRI_2018-11-30 0.80
287        TRI_2020-06-30 0.80
288        TRI_2021-04-01 0.80
289        TRI_2021-06-13 0.78
290        TRI_2017-04-12 0.77
291        TRI_2017-06-05 0.77
292        TRI_2021-10-05 0.77
293        TRI_2018-07-26 0.76
294        TRI_2020-06-19 0.76
295        TRI_2021-05-11 0.76
296        TRI_2018-02-14 0.74
297        TRI_2021-08-19 0.73
298        TRI_2017-06-23 0.72
299        TRI_2021-08-15 0.72
300        TRI_2017-06-09 0.71
301        TRI_2018-02-01 0.70
302        TRI_2020-01-17 0.69
303        TRI_2020-10-17 0.68
304        TRI_2017-08-18 0.67
305        TRI_2020-09-21 0.67
306        TRI_2018-09-20 0.66
307        TRI_2021-03-07 0.66
308        TRI_2017-08-09 0.65
309        TRI_2020-08-29 0.65
310        TRI_2021-04-30 0.65
311        TRI_2017-05-13 0.63
312        TRI_2018-01-03 0.63
313        TRI_2020-04-23 0.61
314        TRI_2020-07-13 0.61
315        TRI_2021-07-28 0.61
316        TRI_2018-10-24 0.60
317        TRI_2021-03-04 0.56
318        TRI_2021-12-04 0.56
319        TRI_2018-07-09 0.55
320        TRI_2017-01-11 0.54
321        TRI_2018-10-28 0.54
322        TRI_2020-01-10 0.54
323        TRI_2018-09-21 0.53
324        TRI_2020-07-02 0.53
325        TRI_2021-11-01 0.53
326        TRI_2017-08-08 0.52
327        TRI_2017-11-13 0.52
328        TRI_2018-03-02 0.52
329        TRI_2018-06-27 0.52
330        TRI_2020-08-30 0.52
331        TRI_2017-08-31 0.51
332        TRI_2020-12-21 0.51
333        TRI_2018-08-23 0.50
334        TRI_2020-05-21 0.49
335        TRI_2020-06-22 0.49
336        TRI_2021-05-25 0.49
337        TRI_2021-07-19 0.49
338        TRI_2017-06-20 0.48
339        TRI_2018-01-31 0.48
340        TRI_2021-05-23 0.48
341        TRI_2021-09-26 0.45
342        TRI_2018-09-22 0.43
343        TRI_2017-05-05 0.42
344        TRI_2018-10-29 0.42
345        TRI_2020-08-15 0.41
346        TRI_2021-08-12 0.39
347        TRI_2017-12-08 0.38
348        TRI_2020-06-29 0.38
349        TRI_2018-03-03 0.37
350        TRI_2018-05-09 0.37
351        TRI_2018-06-28 0.37
352        TRI_2020-12-01 0.37
353        TRI_2017-04-04 0.36
354        TRI_2020-03-11 0.36
355        TRI_2020-05-11 0.36
356        TRI_2017-03-21 0.34
357        TRI_2018-03-13 0.34
358        TRI_2020-11-18 0.34
359        TRI_2018-06-11 0.33
360        TRI_2021-12-10 0.33
361        TRI_2018-04-27 0.32
362        TRI_2021-06-05 0.32
363        TRI_2017-07-29 0.31
364        TRI_2018-08-22 0.30
365        TRI_2018-10-26 0.30
366        TRI_2018-04-12 0.29
367        TRI_2018-09-14 0.28
368        TRI_2020-08-27 0.26
369        TRI_2020-10-16 0.26
370        TRI_2018-06-25 0.25
371        TRI_2021-06-30 0.25
372        TRI_2021-05-20 0.24
373        TRI_2017-11-05 0.23
374        TRI_2018-01-08 0.23
375        TRI_2018-06-04 0.23
376        TRI_2021-08-29 0.23
377        TRI_2018-09-02 0.21
378        TRI_2021-07-22 0.21
379        TRI_2017-11-25 0.20
380        TRI_2018-07-04 0.18
381        TRI_2018-11-19 0.18
382        TRI_2021-12-08 0.18
383        TRI_2018-02-28 0.17
384        TRI_2018-05-11 0.17
385        TRI_2021-02-02 0.17
386        TRI_2021-04-05 0.17
387        TRI_2021-12-12 0.17
388        TRI_2020-12-08 0.16
389        TRI_2018-03-16 0.15
390        TRI_2017-11-21 0.14
391        TRI_2020-06-01 0.14
392        TRI_2020-09-25 0.14
393        TRI_2018-02-27 0.13
394        TRI_2018-05-06 0.13
395        TRI_2020-02-22 0.13
396        TRI_2020-12-05 0.13
397        TRI_2017-02-23 0.11
398        TRI_2017-03-28 0.08
399        TRI_2018-07-23 0.08
400        TRI_2021-07-07 0.06
401        TRI_2017-02-03 0.05
402        TRI_2020-01-26 0.05
403        TRI_2021-06-11 0.03
404        TRI_2017-01-01 0.00
405        TRI_2017-01-02 0.00
406        TRI_2017-01-04 0.00
407        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)