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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 :

Chignin (167 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_2018-05-08 42.95
2        TRI_2020-05-11 30.90
3        TRI_2017-04-09 25.88
4        TRI_2017-06-09 25.88
5        TRI_2017-05-26 23.99
6        TRI_2017-05-27 21.89
7        TRI_2017-06-20 21.24
8        TRI_2017-02-05 20.77
9        TRI_2021-11-27 19.70
10        TRI_2018-12-02 16.71
11        TRI_2020-06-01 16.70
12        TRI_2021-07-06 15.84
13        TRI_2018-09-18 15.81
14        TRI_2020-07-21 15.71
15        TRI_2017-04-01 14.67
16        TRI_2021-03-04 14.13
17        TRI_2020-04-01 13.99
18        TRI_2020-08-10 12.71
19        TRI_2018-07-02 12.53
20        TRI_2021-04-24 12.11
21        TRI_2017-02-03 11.79
22        TRI_2018-01-16 11.78
23        TRI_2017-09-29 11.72
24        TRI_2018-08-13 11.21
25        TRI_2018-02-01 11.09
26        TRI_2021-08-07 11.03
27        TRI_2020-10-04 10.74
28        TRI_2017-08-08 10.38
29        TRI_2021-05-08 10.36
30        TRI_2020-03-12 10.03
31        TRI_2018-08-29 9.98
32        TRI_2017-09-14 9.47
33        TRI_2017-08-23 9.46
34        TRI_2017-12-08 9.37
35        TRI_2021-06-16 9.32
36        TRI_2018-07-27 9.10
37        TRI_2020-10-05 9.07
38        TRI_2020-07-28 9.03
39        TRI_2021-11-02 9.01
40        TRI_2018-09-12 8.64
41        TRI_2020-05-05 8.57
42        TRI_2018-05-21 8.39
43        TRI_2017-08-27 8.14
44        TRI_2018-07-01 7.79
45        TRI_2020-09-21 7.65
46        TRI_2021-03-07 7.62
47        TRI_2017-01-02 7.53
48        TRI_2018-06-03 7.46
49        TRI_2021-09-13 7.38
50        TRI_2020-09-05 7.29
51        TRI_2018-11-30 7.20
52        TRI_2017-09-28 7.19
53        TRI_2017-06-03 7.16
54        TRI_2020-06-27 6.75
55        TRI_2020-03-19 6.37
56        TRI_2018-03-12 6.25
57        TRI_2021-03-31 6.09
58        TRI_2020-06-25 6.03
59        TRI_2017-02-26 6.01
60        TRI_2020-06-24 5.97
61        TRI_2018-04-22 5.95
62        TRI_2020-06-11 5.94
63        TRI_2017-12-14 5.89
64        TRI_2021-03-06 5.80
65        TRI_2017-06-30 5.68
66        TRI_2018-12-13 5.67
67        TRI_2020-05-09 5.66
68        TRI_2018-05-31 5.57
69        TRI_2018-04-12 5.49
70        TRI_2021-10-21 5.18
71        TRI_2020-04-17 5.14
72        TRI_2020-10-31 5.13
73        TRI_2020-04-11 5.09
74        TRI_2020-07-01 5.01
75        TRI_2018-07-14 5.00
76        TRI_2020-06-04 5.00
77        TRI_2018-04-27 4.99
78        TRI_2020-08-19 4.89
79        TRI_2021-04-21 4.87
80        TRI_2018-04-20 4.80
81        TRI_2017-03-16 4.72
82        TRI_2017-10-11 4.70
83        TRI_2020-04-30 4.54
84        TRI_2018-06-30 4.51
85        TRI_2020-04-16 4.50
86        TRI_2021-06-22 4.42
87        TRI_2021-09-23 4.42
88        TRI_2020-09-23 4.33
89        TRI_2017-06-02 4.32
90        TRI_2021-02-09 4.32
91        TRI_2021-06-03 4.31
92        TRI_2020-07-27 4.30
93        TRI_2017-08-07 4.29
94        TRI_2017-08-02 4.26
95        TRI_2017-07-07 4.23
96        TRI_2017-05-30 4.12
97        TRI_2017-08-18 4.03
98        TRI_2018-03-24 3.98
99        TRI_2021-02-14 3.96
100        TRI_2020-06-03 3.90
101        TRI_2021-07-12 3.85
102        TRI_2020-04-06 3.84
103        TRI_2021-05-31 3.84
104        TRI_2018-09-30 3.83
105        TRI_2021-05-24 3.81
106        TRI_2017-06-28 3.79
107        TRI_2017-07-20 3.78
108        TRI_2018-01-18 3.76
109        TRI_2018-10-06 3.75
110        TRI_2017-12-15 3.72
111        TRI_2021-05-06 3.60
112        TRI_2021-09-06 3.59
113        TRI_2017-12-30 3.57
114        TRI_2020-08-13 3.51
115        TRI_2017-08-22 3.46
116        TRI_2021-09-25 3.41
117        TRI_2020-09-20 3.40
118        TRI_2017-03-27 3.36
119        TRI_2020-05-31 3.25
120        TRI_2020-12-27 3.25
121        TRI_2018-03-03 3.18
122        TRI_2018-05-23 3.18
123        TRI_2020-05-01 3.16
124        TRI_2017-11-02 3.14
125        TRI_2018-09-16 3.13
126        TRI_2018-11-03 3.06
127        TRI_2020-01-03 3.04
128        TRI_2021-08-14 3.04
129        TRI_2017-09-09 3.03
130        TRI_2021-03-11 3.02
131        TRI_2017-07-08 3.01
132        TRI_2021-02-01 3.00
133        TRI_2018-09-17 2.96
134        TRI_2017-06-27 2.89
135        TRI_2017-11-25 2.89
136        TRI_2017-02-23 2.88
137        TRI_2021-06-04 2.88
138        TRI_2018-02-16 2.86
139        TRI_2017-06-11 2.80
140        TRI_2020-04-12 2.76
141        TRI_2020-12-07 2.71
142        TRI_2021-06-17 2.67
143        TRI_2018-07-28 2.65
144        TRI_2017-12-31 2.61
145        TRI_2017-05-04 2.54
146        TRI_2021-09-07 2.35
147        TRI_2021-05-16 2.30
148        TRI_2021-07-27 2.29
149        TRI_2017-07-17 2.28
150        TRI_2017-03-22 2.22
151        TRI_2018-07-26 2.20
152        TRI_2018-09-26 2.20
153        TRI_2021-01-19 2.19
154        TRI_2020-08-16 2.18
155        TRI_2018-03-02 2.17
156        TRI_2017-10-31 2.14
157        TRI_2018-08-15 2.10
158        TRI_2020-07-30 2.10
159        TRI_2021-08-04 2.10
160        TRI_2018-05-06 2.08
161        TRI_2017-06-05 2.07
162        TRI_2017-06-13 2.05
163        TRI_2018-08-16 2.03
164        TRI_2017-09-27 2.02
165        TRI_2017-07-22 1.98
166        TRI_2018-12-21 1.98
167        TRI_2018-09-05 1.97
168        TRI_2018-09-21 1.96
169        TRI_2017-12-06 1.95
170        TRI_2018-02-28 1.90
171        TRI_2017-08-03 1.89
172        TRI_2017-06-29 1.84
173        TRI_2017-10-20 1.84
174        TRI_2018-06-05 1.84
175        TRI_2021-04-11 1.79
176        TRI_2020-12-29 1.77
177        TRI_2020-01-28 1.76
178        TRI_2017-05-05 1.75
179        TRI_2020-02-10 1.70
180        TRI_2017-01-25 1.69
181        TRI_2020-03-16 1.67
182        TRI_2020-10-18 1.64
183        TRI_2021-02-08 1.64
184        TRI_2020-07-29 1.61
185        TRI_2021-08-21 1.60
186        TRI_2018-08-12 1.58
187        TRI_2021-07-30 1.54
188        TRI_2020-03-18 1.52
189        TRI_2020-04-25 1.52
190        TRI_2020-11-18 1.52
191        TRI_2021-04-27 1.52
192        TRI_2017-07-21 1.51
193        TRI_2020-04-10 1.50
194        TRI_2021-04-23 1.50
195        TRI_2018-09-20 1.45
196        TRI_2020-03-01 1.44
197        TRI_2018-06-07 1.40
198        TRI_2018-01-31 1.39
199        TRI_2017-05-02 1.38
200        TRI_2018-07-20 1.38
201        TRI_2018-06-02 1.32
202        TRI_2020-04-18 1.32
203        TRI_2020-12-05 1.32
204        TRI_2021-06-23 1.31
205        TRI_2021-10-24 1.29
206        TRI_2017-03-02 1.28
207        TRI_2021-04-20 1.28
208        TRI_2017-12-10 1.26
209        TRI_2018-02-27 1.26
210        TRI_2021-03-30 1.22
211        TRI_2017-04-23 1.21
212        TRI_2021-04-30 1.21
213        TRI_2021-03-29 1.20
214        TRI_2021-04-08 1.20
215        TRI_2018-05-07 1.16
216        TRI_2018-06-04 1.16
217        TRI_2020-07-31 1.16
218        TRI_2021-05-15 1.16
219        TRI_2021-10-01 1.15
220        TRI_2020-04-22 1.12
221        TRI_2021-05-05 1.12
222        TRI_2017-09-26 1.11
223        TRI_2018-06-29 1.11
224        TRI_2021-07-24 1.10
225        TRI_2017-08-13 1.09
226        TRI_2020-05-04 1.07
227        TRI_2021-12-28 1.07
228        TRI_2021-06-28 1.06
229        TRI_2017-05-22 1.05
230        TRI_2020-09-14 1.04
231        TRI_2018-04-19 1.03
232        TRI_2020-08-15 0.99
233        TRI_2017-05-09 0.98
234        TRI_2017-06-08 0.94
235        TRI_2018-04-21 0.94
236        TRI_2020-02-14 0.94
237        TRI_2021-08-12 0.94
238        TRI_2018-04-08 0.93
239        TRI_2021-09-12 0.93
240        TRI_2020-12-23 0.92
241        TRI_2017-04-25 0.91
242        TRI_2021-06-26 0.89
243        TRI_2020-05-12 0.88
244        TRI_2020-05-23 0.88
245        TRI_2017-05-21 0.87
246        TRI_2017-08-28 0.87
247        TRI_2018-06-11 0.87
248        TRI_2020-06-13 0.87
249        TRI_2017-08-29 0.85
250        TRI_2017-09-30 0.82
251        TRI_2018-06-09 0.82
252        TRI_2018-10-04 0.82
253        TRI_2020-02-13 0.81
254        TRI_2018-08-28 0.80
255        TRI_2020-05-22 0.80
256        TRI_2017-04-08 0.77
257        TRI_2017-10-19 0.77
258        TRI_2018-03-05 0.74
259        TRI_2020-09-16 0.73
260        TRI_2021-07-10 0.73
261        TRI_2017-10-13 0.72
262        TRI_2020-05-13 0.72
263        TRI_2020-09-03 0.72
264        TRI_2020-09-15 0.71
265        TRI_2020-03-13 0.70
266        TRI_2020-12-31 0.70
267        TRI_2017-03-31 0.68
268        TRI_2017-06-19 0.68
269        TRI_2018-05-12 0.68
270        TRI_2017-06-06 0.67
271        TRI_2018-10-26 0.63
272        TRI_2018-07-05 0.60
273        TRI_2020-08-09 0.59
274        TRI_2017-07-29 0.58
275        TRI_2018-05-11 0.58
276        TRI_2021-05-04 0.58
277        TRI_2017-02-15 0.55
278        TRI_2018-09-10 0.55
279        TRI_2017-05-28 0.54
280        TRI_2021-07-03 0.52
281        TRI_2020-05-10 0.51
282        TRI_2017-08-15 0.49
283        TRI_2017-06-21 0.47
284        TRI_2020-06-02 0.45
285        TRI_2021-12-27 0.45
286        TRI_2021-02-15 0.44
287        TRI_2021-05-11 0.44
288        TRI_2021-10-17 0.42
289        TRI_2021-02-25 0.40
290        TRI_2017-05-03 0.39
291        TRI_2021-05-07 0.37
292        TRI_2021-08-31 0.37
293        TRI_2017-05-06 0.36
294        TRI_2017-03-06 0.35
295        TRI_2018-08-06 0.35
296        TRI_2017-07-28 0.34
297        TRI_2020-02-15 0.34
298        TRI_2018-04-01 0.33
299        TRI_2018-09-15 0.31
300        TRI_2020-08-08 0.29
301        TRI_2020-10-06 0.28
302        TRI_2018-11-19 0.27
303        TRI_2020-11-01 0.26
304        TRI_2020-04-26 0.25
305        TRI_2017-09-25 0.24
306        TRI_2017-05-17 0.23
307        TRI_2017-07-30 0.23
308        TRI_2017-12-07 0.23
309        TRI_2021-08-13 0.23
310        TRI_2020-08-20 0.21
311        TRI_2021-06-18 0.21
312        TRI_2018-10-28 0.20
313        TRI_2020-04-24 0.20
314        TRI_2018-05-24 0.19
315        TRI_2020-02-27 0.14
316        TRI_2020-07-19 0.13
317        TRI_2018-09-25 0.12
318        TRI_2021-12-10 0.11
319        TRI_2020-07-20 0.10
320        TRI_2021-03-03 0.10
321        TRI_2017-01-01 0.00
322        TRI_2017-01-03 0.00
323        TRI_2017-01-04 0.00
324        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)