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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 :

Feurs (162 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_2017-03-23 134.14
2        TRI_2017-01-27 93.34
3        TRI_2020-10-23 67.88
4        TRI_2017-01-02 55.47
5        TRI_2020-11-08 49.07
6        TRI_2017-06-13 46.45
7        TRI_2020-01-25 44.97
8        TRI_2020-12-17 41.86
9        TRI_2020-09-20 33.90
10        TRI_2021-10-24 31.78
11        TRI_2020-12-16 31.13
12        TRI_2018-11-09 30.95
13        TRI_2020-09-19 29.16
14        TRI_2020-04-08 28.80
15        TRI_2017-03-30 26.49
16        TRI_2020-08-11 26.10
17        TRI_2020-06-01 24.50
18        TRI_2020-07-30 24.42
19        TRI_2020-03-20 22.02
20        TRI_2017-06-26 20.95
21        TRI_2017-07-17 20.15
22        TRI_2018-04-08 19.46
23        TRI_2017-07-07 19.41
24        TRI_2017-01-28 19.29
25        TRI_2021-12-24 18.72
26        TRI_2020-06-13 18.53
27        TRI_2017-05-31 18.19
28        TRI_2020-08-10 18.12
29        TRI_2020-05-04 17.87
30        TRI_2021-02-22 17.76
31        TRI_2018-03-11 17.06
32        TRI_2017-02-15 16.98
33        TRI_2017-05-05 16.13
34        TRI_2021-04-01 16.10
35        TRI_2020-09-18 15.94
36        TRI_2018-11-17 15.91
37        TRI_2020-01-24 14.43
38        TRI_2018-06-30 14.17
39        TRI_2020-01-16 14.11
40        TRI_2020-09-04 14.11
41        TRI_2020-11-12 13.85
42        TRI_2020-12-07 13.78
43        TRI_2018-06-09 13.46
44        TRI_2018-05-25 13.19
45        TRI_2018-03-24 13.18
46        TRI_2021-01-21 13.17
47        TRI_2018-05-07 12.99
48        TRI_2018-06-05 12.80
49        TRI_2020-11-26 12.73
50        TRI_2017-06-01 12.66
51        TRI_2018-11-01 12.61
52        TRI_2021-08-14 12.48
53        TRI_2017-11-01 12.11
54        TRI_2020-12-18 11.67
55        TRI_2021-03-29 11.36
56        TRI_2021-06-21 11.33
57        TRI_2017-07-04 11.24
58        TRI_2018-09-28 11.09
59        TRI_2021-10-30 10.77
60        TRI_2017-05-16 10.54
61        TRI_2018-04-14 10.49
62        TRI_2020-10-19 10.32
63        TRI_2018-10-15 10.27
64        TRI_2021-10-31 10.18
65        TRI_2018-06-03 9.95
66        TRI_2021-03-01 9.88
67        TRI_2021-04-25 9.84
68        TRI_2020-02-06 9.75
69        TRI_2020-11-06 9.75
70        TRI_2021-04-24 9.68
71        TRI_2017-09-28 9.57
72        TRI_2017-03-04 9.53
73        TRI_2018-11-05 9.49
74        TRI_2017-06-08 9.46
75        TRI_2020-03-15 9.42
76        TRI_2018-01-09 9.39
77        TRI_2018-12-13 9.02
78        TRI_2020-09-15 9.01
79        TRI_2017-04-24 8.95
80        TRI_2021-10-18 8.45
81        TRI_2017-07-09 8.34
82        TRI_2018-09-26 8.30
83        TRI_2020-06-24 8.26
84        TRI_2020-09-14 8.23
85        TRI_2018-08-12 8.06
86        TRI_2021-12-22 8.02
87        TRI_2021-02-23 7.67
88        TRI_2018-11-20 7.64
89        TRI_2021-09-23 7.60
90        TRI_2018-11-13 7.55
91        TRI_2017-05-12 7.51
92        TRI_2018-10-05 7.39
93        TRI_2018-03-04 7.36
94        TRI_2018-09-25 7.19
95        TRI_2021-02-05 7.19
96        TRI_2018-03-01 7.13
97        TRI_2018-10-11 7.00
98        TRI_2018-01-24 6.93
99        TRI_2020-11-27 6.84
100        TRI_2017-02-12 6.83
101        TRI_2017-10-13 6.82
102        TRI_2021-06-27 6.59
103        TRI_2020-05-31 6.55
104        TRI_2020-07-31 6.46
105        TRI_2020-04-15 6.41
106        TRI_2021-01-22 6.30
107        TRI_2018-06-29 6.28
108        TRI_2018-11-21 6.13
109        TRI_2021-03-03 6.09
110        TRI_2018-01-06 6.08
111        TRI_2018-04-21 6.01
112        TRI_2020-02-15 5.91
113        TRI_2020-04-04 5.82
114        TRI_2021-01-19 5.78
115        TRI_2018-04-19 5.76
116        TRI_2020-08-07 5.62
117        TRI_2020-04-10 5.57
118        TRI_2021-04-26 5.49
119        TRI_2017-09-27 5.40
120        TRI_2017-05-09 5.38
121        TRI_2017-08-27 5.38
122        TRI_2018-06-04 5.35
123        TRI_2021-02-04 5.32
124        TRI_2020-04-18 5.31
125        TRI_2021-09-06 5.26
126        TRI_2021-12-21 5.22
127        TRI_2020-04-13 5.11
128        TRI_2020-04-11 4.98
129        TRI_2021-10-27 4.97
130        TRI_2020-03-24 4.90
131        TRI_2021-01-20 4.80
132        TRI_2017-02-10 4.75
133        TRI_2020-04-09 4.75
134        TRI_2018-05-26 4.67
135        TRI_2018-05-29 4.61
136        TRI_2020-05-11 4.52
137        TRI_2017-09-26 4.42
138        TRI_2018-04-06 4.42
139        TRI_2021-02-09 4.39
140        TRI_2021-10-17 4.38
141        TRI_2018-02-06 4.32
142        TRI_2021-09-24 4.32
143        TRI_2020-03-18 4.26
144        TRI_2018-06-02 4.19
145        TRI_2018-04-04 4.17
146        TRI_2017-08-14 4.08
147        TRI_2021-09-05 4.08
148        TRI_2021-07-23 4.05
149        TRI_2020-12-04 4.02
150        TRI_2018-08-06 3.95
151        TRI_2020-03-02 3.94
152        TRI_2017-12-11 3.90
153        TRI_2018-09-16 3.85
154        TRI_2017-03-02 3.70
155        TRI_2021-10-01 3.70
156        TRI_2021-03-06 3.69
157        TRI_2018-11-15 3.63
158        TRI_2018-03-15 3.60
159        TRI_2020-11-23 3.58
160        TRI_2021-04-23 3.57
161        TRI_2021-05-30 3.57
162        TRI_2021-09-07 3.50
163        TRI_2018-10-04 3.49
164        TRI_2021-09-14 3.49
165        TRI_2017-06-20 3.48
166        TRI_2020-04-01 3.36
167        TRI_2017-04-08 3.22
168        TRI_2020-01-12 3.20
169        TRI_2020-08-15 3.01
170        TRI_2017-05-26 2.88
171        TRI_2017-04-23 2.81
172        TRI_2017-08-29 2.80
173        TRI_2018-09-10 2.78
174        TRI_2021-05-31 2.78
175        TRI_2020-07-29 2.76
176        TRI_2020-03-19 2.67
177        TRI_2021-10-28 2.62
178        TRI_2018-08-28 2.57
179        TRI_2018-11-19 2.57
180        TRI_2020-03-23 2.57
181        TRI_2021-06-16 2.48
182        TRI_2018-05-31 2.44
183        TRI_2017-08-22 2.40
184        TRI_2017-04-07 2.38
185        TRI_2018-03-02 2.25
186        TRI_2018-03-08 2.23
187        TRI_2018-03-05 2.18
188        TRI_2017-05-30 2.14
189        TRI_2017-07-08 2.13
190        TRI_2020-09-13 2.11
191        TRI_2018-09-27 2.01
192        TRI_2017-05-04 1.99
193        TRI_2020-04-25 1.97
194        TRI_2018-10-31 1.95
195        TRI_2018-11-12 1.95
196        TRI_2018-11-25 1.89
197        TRI_2020-05-13 1.89
198        TRI_2017-03-27 1.88
199        TRI_2021-02-06 1.88
200        TRI_2017-11-02 1.85
201        TRI_2021-07-22 1.83
202        TRI_2018-10-27 1.82
203        TRI_2021-11-19 1.82
204        TRI_2018-05-12 1.79
205        TRI_2018-03-10 1.75
206        TRI_2021-03-30 1.71
207        TRI_2020-06-12 1.70
208        TRI_2018-05-24 1.67
209        TRI_2017-06-18 1.66
210        TRI_2018-05-20 1.64
211        TRI_2021-06-26 1.64
212        TRI_2017-05-21 1.59
213        TRI_2021-10-22 1.59
214        TRI_2017-02-13 1.57
215        TRI_2021-10-03 1.50
216        TRI_2018-04-10 1.47
217        TRI_2017-08-28 1.43
218        TRI_2018-04-27 1.43
219        TRI_2020-01-26 1.40
220        TRI_2018-04-12 1.38
221        TRI_2018-05-11 1.35
222        TRI_2020-07-19 1.35
223        TRI_2018-04-20 1.32
224        TRI_2020-01-13 1.31
225        TRI_2021-12-17 1.31
226        TRI_2020-09-17 1.30
227        TRI_2018-12-18 1.29
228        TRI_2020-06-25 1.28
229        TRI_2021-09-02 1.25
230        TRI_2017-05-10 1.24
231        TRI_2017-07-31 1.22
232        TRI_2021-03-04 1.22
233        TRI_2018-11-06 1.21
234        TRI_2018-01-14 1.20
235        TRI_2021-05-08 1.17
236        TRI_2017-05-03 1.16
237        TRI_2021-04-21 1.16
238        TRI_2018-11-16 1.14
239        TRI_2018-06-07 1.13
240        TRI_2020-06-23 1.13
241        TRI_2017-05-24 1.11
242        TRI_2021-08-21 1.11
243        TRI_2017-04-29 1.09
244        TRI_2018-06-06 1.08
245        TRI_2020-07-21 1.07
246        TRI_2020-01-08 1.05
247        TRI_2021-04-22 1.04
248        TRI_2020-04-05 1.02
249        TRI_2020-04-26 0.99
250        TRI_2021-04-29 0.97
251        TRI_2021-08-24 0.92
252        TRI_2018-11-23 0.91
253        TRI_2021-04-08 0.89
254        TRI_2020-08-09 0.86
255        TRI_2017-10-31 0.85
256        TRI_2017-03-26 0.83
257        TRI_2021-08-31 0.81
258        TRI_2017-02-14 0.78
259        TRI_2017-01-25 0.76
260        TRI_2020-03-21 0.76
261        TRI_2020-05-12 0.76
262        TRI_2018-01-08 0.74
263        TRI_2018-07-27 0.74
264        TRI_2017-08-15 0.73
265        TRI_2021-08-12 0.73
266        TRI_2020-08-08 0.72
267        TRI_2020-01-23 0.71
268        TRI_2018-01-10 0.69
269        TRI_2018-05-30 0.69
270        TRI_2018-07-01 0.68
271        TRI_2018-05-27 0.64
272        TRI_2020-09-12 0.62
273        TRI_2020-11-22 0.61
274        TRI_2017-03-15 0.60
275        TRI_2021-05-10 0.60
276        TRI_2017-05-27 0.59
277        TRI_2018-03-14 0.59
278        TRI_2018-02-16 0.58
279        TRI_2020-04-14 0.58
280        TRI_2018-04-26 0.55
281        TRI_2018-10-06 0.55
282        TRI_2021-09-30 0.55
283        TRI_2018-08-05 0.52
284        TRI_2021-06-15 0.52
285        TRI_2021-02-14 0.51
286        TRI_2021-03-31 0.50
287        TRI_2017-12-06 0.49
288        TRI_2020-10-18 0.48
289        TRI_2018-07-26 0.42
290        TRI_2018-12-26 0.42
291        TRI_2018-04-01 0.40
292        TRI_2017-06-06 0.38
293        TRI_2017-09-29 0.37
294        TRI_2021-06-14 0.34
295        TRI_2020-12-31 0.33
296        TRI_2018-04-18 0.31
297        TRI_2018-06-01 0.29
298        TRI_2018-07-03 0.29
299        TRI_2018-06-11 0.26
300        TRI_2020-04-19 0.25
301        TRI_2018-04-05 0.24
302        TRI_2020-06-11 0.23
303        TRI_2018-09-11 0.22
304        TRI_2021-03-27 0.22
305        TRI_2017-07-03 0.21
306        TRI_2018-01-23 0.21
307        TRI_2018-10-28 0.21
308        TRI_2020-03-25 0.19
309        TRI_2021-03-02 0.19
310        TRI_2021-04-20 0.19
311        TRI_2021-05-07 0.18
312        TRI_2018-04-11 0.17
313        TRI_2018-07-14 0.17
314        TRI_2020-09-16 0.17
315        TRI_2017-11-03 0.16
316        TRI_2018-05-06 0.16
317        TRI_2018-11-08 0.15
318        TRI_2017-04-01 0.14
319        TRI_2018-11-03 0.13
320        TRI_2017-04-28 0.12
321        TRI_2018-05-19 0.08
322        TRI_2020-02-14 0.06
323        TRI_2017-01-01 0.00
324        TRI_2017-01-03 0.00
325        TRI_2017-01-04 0.00
326        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)