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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 :

Alessandria (314 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_2020-05-15 65.63
2        TRI_2020-06-18 31.31
3        TRI_2021-11-27 24.09
4        TRI_2020-09-30 22.05
5        TRI_2017-12-24 21.89
6        TRI_2017-10-08 21.25
7        TRI_2018-05-14 20.96
8        TRI_2017-06-04 20.53
9        TRI_2020-08-17 20.36
10        TRI_2021-04-08 19.18
11        TRI_2020-06-09 18.97
12        TRI_2021-09-12 18.57
13        TRI_2017-04-13 18.07
14        TRI_2020-05-12 15.74
15        TRI_2021-06-29 14.64
16        TRI_2018-01-29 13.12
17        TRI_2020-12-27 11.95
18        TRI_2017-05-03 11.72
19        TRI_2017-03-02 11.58
20        TRI_2021-06-24 11.46
21        TRI_2017-05-19 11.34
22        TRI_2020-05-01 10.44
23        TRI_2020-01-30 10.03
24        TRI_2017-06-12 9.81
25        TRI_2021-08-30 9.49
26        TRI_2020-10-05 9.43
27        TRI_2020-08-14 9.31
28        TRI_2021-07-29 9.16
29        TRI_2018-06-01 8.66
30        TRI_2021-05-15 8.58
31        TRI_2021-05-05 8.54
32        TRI_2021-08-20 8.31
33        TRI_2021-02-14 8.19
34        TRI_2021-07-19 8.02
35        TRI_2021-03-27 7.94
36        TRI_2021-05-06 7.82
37        TRI_2020-01-01 7.57
38        TRI_2021-07-14 7.40
39        TRI_2018-03-14 7.31
40        TRI_2021-12-31 7.07
41        TRI_2020-10-18 7.03
42        TRI_2017-09-17 6.96
43        TRI_2020-02-24 6.87
44        TRI_2021-08-05 6.85
45        TRI_2017-07-23 6.80
46        TRI_2020-12-22 6.73
47        TRI_2020-02-23 6.63
48        TRI_2020-12-24 6.56
49        TRI_2017-07-03 6.49
50        TRI_2021-12-12 6.47
51        TRI_2017-06-21 6.44
52        TRI_2017-03-18 6.40
53        TRI_2020-10-06 6.23
54        TRI_2021-07-02 6.06
55        TRI_2020-08-09 5.97
56        TRI_2021-03-25 5.87
57        TRI_2017-03-17 5.70
58        TRI_2018-07-19 5.64
59        TRI_2018-05-23 5.59
60        TRI_2017-10-05 5.53
61        TRI_2017-10-02 5.39
62        TRI_2018-06-29 5.39
63        TRI_2018-09-03 5.34
64        TRI_2017-06-22 5.33
65        TRI_2017-12-05 5.32
66        TRI_2017-06-06 5.18
67        TRI_2018-03-17 5.14
68        TRI_2018-07-14 5.13
69        TRI_2021-08-03 5.06
70        TRI_2020-07-19 5.04
71        TRI_2020-06-04 5.03
72        TRI_2018-06-08 4.98
73        TRI_2020-07-08 4.83
74        TRI_2017-11-08 4.80
75        TRI_2021-05-26 4.70
76        TRI_2020-06-29 4.68
77        TRI_2017-08-23 4.62
78        TRI_2021-03-24 4.62
79        TRI_2020-08-26 4.47
80        TRI_2021-08-21 4.43
81        TRI_2021-02-09 4.41
82        TRI_2020-07-20 4.38
83        TRI_2021-05-13 4.35
84        TRI_2020-08-19 4.29
85        TRI_2021-01-28 4.27
86        TRI_2020-06-06 4.24
87        TRI_2018-09-13 4.19
88        TRI_2018-06-07 4.18
89        TRI_2021-10-21 4.16
90        TRI_2017-03-22 4.15
91        TRI_2020-07-25 4.07
92        TRI_2020-04-24 4.00
93        TRI_2021-08-16 3.87
94        TRI_2017-04-22 3.85
95        TRI_2021-10-05 3.80
96        TRI_2021-07-10 3.77
97        TRI_2017-11-20 3.76
98        TRI_2020-07-27 3.76
99        TRI_2017-10-04 3.73
100        TRI_2021-12-28 3.68
101        TRI_2020-07-21 3.65
102        TRI_2021-05-16 3.65
103        TRI_2018-07-12 3.61
104        TRI_2020-02-02 3.57
105        TRI_2018-01-18 3.56
106        TRI_2020-04-26 3.54
107        TRI_2017-06-05 3.52
108        TRI_2020-04-23 3.49
109        TRI_2021-08-08 3.49
110        TRI_2021-12-18 3.49
111        TRI_2018-01-30 3.48
112        TRI_2020-01-28 3.45
113        TRI_2017-04-07 3.42
114        TRI_2021-11-01 3.42
115        TRI_2020-05-22 3.40
116        TRI_2021-06-05 3.36
117        TRI_2021-08-06 3.35
118        TRI_2017-09-20 3.34
119        TRI_2020-08-31 3.30
120        TRI_2020-10-28 3.23
121        TRI_2020-10-29 3.19
122        TRI_2020-10-31 3.17
123        TRI_2017-02-20 3.13
124        TRI_2020-05-11 3.13
125        TRI_2020-06-11 3.12
126        TRI_2017-06-28 3.00
127        TRI_2020-08-25 2.99
128        TRI_2020-06-30 2.95
129        TRI_2020-03-11 2.94
130        TRI_2018-10-24 2.84
131        TRI_2018-04-24 2.80
132        TRI_2021-02-02 2.77
133        TRI_2018-03-29 2.75
134        TRI_2021-02-01 2.72
135        TRI_2018-07-18 2.65
136        TRI_2020-09-23 2.65
137        TRI_2018-08-31 2.59
138        TRI_2021-09-18 2.59
139        TRI_2018-05-15 2.57
140        TRI_2018-03-03 2.54
141        TRI_2018-07-03 2.54
142        TRI_2021-07-31 2.54
143        TRI_2017-04-23 2.52
144        TRI_2020-05-04 2.46
145        TRI_2020-07-30 2.44
146        TRI_2020-06-07 2.42
147        TRI_2020-07-26 2.42
148        TRI_2020-12-21 2.42
149        TRI_2017-06-30 2.41
150        TRI_2017-04-09 2.39
151        TRI_2021-08-13 2.38
152        TRI_2020-09-05 2.37
153        TRI_2020-02-14 2.36
154        TRI_2021-07-05 2.36
155        TRI_2020-11-01 2.33
156        TRI_2021-08-29 2.32
157        TRI_2017-04-21 2.31
158        TRI_2020-01-03 2.30
159        TRI_2018-06-12 2.22
160        TRI_2020-02-27 2.20
161        TRI_2020-06-02 2.19
162        TRI_2020-06-13 2.14
163        TRI_2017-12-23 2.12
164        TRI_2021-03-23 2.11
165        TRI_2021-05-01 2.10
166        TRI_2018-01-03 2.08
167        TRI_2021-09-19 2.06
168        TRI_2020-07-22 2.03
169        TRI_2020-06-28 2.02
170        TRI_2021-05-24 2.00
171        TRI_2020-02-13 1.94
172        TRI_2020-02-10 1.93
173        TRI_2021-06-23 1.93
174        TRI_2017-07-11 1.92
175        TRI_2020-05-21 1.92
176        TRI_2017-06-24 1.89
177        TRI_2017-07-27 1.89
178        TRI_2018-05-31 1.87
179        TRI_2021-02-17 1.85
180        TRI_2017-02-05 1.84
181        TRI_2021-08-04 1.82
182        TRI_2018-07-27 1.80
183        TRI_2021-01-01 1.80
184        TRI_2017-10-25 1.77
185        TRI_2018-03-12 1.77
186        TRI_2018-05-13 1.75
187        TRI_2018-03-13 1.72
188        TRI_2020-03-12 1.72
189        TRI_2018-09-21 1.70
190        TRI_2017-03-19 1.69
191        TRI_2021-07-03 1.69
192        TRI_2018-04-23 1.67
193        TRI_2020-07-29 1.67
194        TRI_2021-05-11 1.66
195        TRI_2021-05-22 1.64
196        TRI_2021-05-25 1.64
197        TRI_2017-06-09 1.61
198        TRI_2021-03-11 1.61
199        TRI_2017-09-08 1.59
200        TRI_2018-07-09 1.59
201        TRI_2020-08-03 1.54
202        TRI_2021-07-11 1.54
203        TRI_2017-07-04 1.53
204        TRI_2018-12-23 1.51
205        TRI_2018-07-08 1.47
206        TRI_2020-03-28 1.47
207        TRI_2020-04-29 1.44
208        TRI_2017-07-28 1.41
209        TRI_2017-03-05 1.40
210        TRI_2017-03-16 1.40
211        TRI_2017-02-16 1.38
212        TRI_2017-03-06 1.37
213        TRI_2020-01-17 1.37
214        TRI_2020-07-10 1.35
215        TRI_2017-02-03 1.32
216        TRI_2017-08-08 1.31
217        TRI_2021-04-19 1.31
218        TRI_2017-04-27 1.28
219        TRI_2017-09-13 1.25
220        TRI_2017-03-21 1.24
221        TRI_2020-07-01 1.24
222        TRI_2020-01-02 1.22
223        TRI_2021-03-13 1.22
224        TRI_2021-11-02 1.20
225        TRI_2021-08-15 1.19
226        TRI_2018-03-02 1.17
227        TRI_2020-04-25 1.17
228        TRI_2018-11-30 1.16
229        TRI_2021-05-12 1.13
230        TRI_2017-09-09 1.12
231        TRI_2017-05-09 1.11
232        TRI_2020-05-20 1.09
233        TRI_2018-07-02 1.07
234        TRI_2018-09-20 1.07
235        TRI_2017-04-12 1.04
236        TRI_2018-09-02 1.03
237        TRI_2018-01-10 1.02
238        TRI_2020-09-28 1.02
239        TRI_2021-06-30 1.01
240        TRI_2018-07-10 1.00
241        TRI_2018-03-18 0.99
242        TRI_2017-05-04 0.98
243        TRI_2018-06-11 0.96
244        TRI_2017-08-31 0.94
245        TRI_2017-11-21 0.92
246        TRI_2021-05-14 0.92
247        TRI_2017-06-11 0.91
248        TRI_2018-05-11 0.91
249        TRI_2021-09-17 0.88
250        TRI_2021-11-04 0.87
251        TRI_2017-10-07 0.86
252        TRI_2018-04-12 0.86
253        TRI_2020-03-01 0.86
254        TRI_2020-06-23 0.86
255        TRI_2017-08-04 0.85
256        TRI_2018-08-29 0.85
257        TRI_2021-07-22 0.85
258        TRI_2017-10-03 0.83
259        TRI_2017-09-04 0.82
260        TRI_2020-08-21 0.82
261        TRI_2020-02-25 0.81
262        TRI_2020-08-27 0.80
263        TRI_2021-05-07 0.80
264        TRI_2018-02-08 0.78
265        TRI_2018-06-16 0.78
266        TRI_2018-09-14 0.77
267        TRI_2018-09-22 0.77
268        TRI_2021-06-22 0.77
269        TRI_2017-09-05 0.76
270        TRI_2017-12-15 0.76
271        TRI_2018-06-30 0.75
272        TRI_2018-08-22 0.75
273        TRI_2021-02-08 0.75
274        TRI_2020-10-09 0.73
275        TRI_2017-02-19 0.72
276        TRI_2021-08-19 0.72
277        TRI_2018-07-20 0.71
278        TRI_2021-03-22 0.71
279        TRI_2017-07-21 0.70
280        TRI_2020-08-01 0.69
281        TRI_2017-04-10 0.68
282        TRI_2017-06-23 0.68
283        TRI_2020-08-15 0.68
284        TRI_2017-02-21 0.67
285        TRI_2017-12-14 0.67
286        TRI_2017-08-13 0.65
287        TRI_2018-05-02 0.63
288        TRI_2020-05-13 0.63
289        TRI_2018-10-28 0.61
290        TRI_2017-08-07 0.60
291        TRI_2020-02-22 0.58
292        TRI_2020-09-21 0.57
293        TRI_2017-06-25 0.55
294        TRI_2017-07-07 0.55
295        TRI_2018-10-29 0.55
296        TRI_2018-07-23 0.53
297        TRI_2021-12-04 0.53
298        TRI_2020-10-13 0.52
299        TRI_2021-08-14 0.51
300        TRI_2018-09-04 0.50
301        TRI_2020-08-18 0.49
302        TRI_2020-06-01 0.48
303        TRI_2020-09-24 0.48
304        TRI_2018-06-20 0.47
305        TRI_2017-12-06 0.46
306        TRI_2018-07-26 0.46
307        TRI_2017-09-06 0.45
308        TRI_2018-06-21 0.43
309        TRI_2017-05-22 0.42
310        TRI_2020-04-12 0.42
311        TRI_2020-06-10 0.42
312        TRI_2020-11-18 0.42
313        TRI_2020-12-06 0.42
314        TRI_2020-04-22 0.41
315        TRI_2021-05-08 0.41
316        TRI_2021-07-27 0.41
317        TRI_2021-08-26 0.41
318        TRI_2021-07-04 0.39
319        TRI_2018-05-25 0.38
320        TRI_2020-07-13 0.38
321        TRI_2021-07-09 0.38
322        TRI_2021-12-19 0.38
323        TRI_2021-04-18 0.35
324        TRI_2021-09-24 0.35
325        TRI_2021-11-30 0.35
326        TRI_2017-06-13 0.33
327        TRI_2017-04-26 0.32
328        TRI_2018-03-28 0.32
329        TRI_2021-07-21 0.32
330        TRI_2021-12-10 0.32
331        TRI_2021-07-28 0.31
332        TRI_2017-09-14 0.29
333        TRI_2018-06-04 0.29
334        TRI_2020-07-09 0.29
335        TRI_2018-02-14 0.28
336        TRI_2017-08-06 0.26
337        TRI_2018-08-12 0.26
338        TRI_2017-06-29 0.25
339        TRI_2020-08-29 0.25
340        TRI_2020-10-17 0.25
341        TRI_2021-05-03 0.25
342        TRI_2021-06-26 0.21
343        TRI_2021-04-05 0.19
344        TRI_2017-06-03 0.18
345        TRI_2021-08-22 0.17
346        TRI_2017-01-12 0.16
347        TRI_2018-07-04 0.16
348        TRI_2018-07-22 0.15
349        TRI_2020-05-05 0.15
350        TRI_2017-08-28 0.14
351        TRI_2021-07-13 0.14
352        TRI_2017-08-18 0.12
353        TRI_2020-06-17 0.12
354        TRI_2018-04-01 0.11
355        TRI_2021-04-01 0.10
356        TRI_2018-03-06 0.08
357        TRI_2021-09-15 0.08
358        TRI_2020-01-31 0.07
359        TRI_2017-01-01 0.00
360        TRI_2017-01-02 0.00
361        TRI_2017-01-03 0.00
362        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)