Symbol of the Biosphere, the logo of the Biosphere Institute was designed to acknowledge that humans belong to this singular organism.
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 :

Lyon (159 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_2017-02-01 134.32
2        TRI_2017-02-11 122.03
3        TRI_2020-11-09 113.04
4        TRI_2017-02-15 108.24
5        TRI_2017-07-05 100.52
6        TRI_2017-01-01 92.51
7        TRI_2017-03-03 74.47
8        TRI_2020-01-17 74.18
9        TRI_2020-12-17 63.69
10        TRI_2017-11-04 63.40
11        TRI_2021-04-28 63.30
12        TRI_2017-02-05 59.25
13        TRI_2020-11-25 58.35
14        TRI_2017-02-26 55.83
15        TRI_2020-12-15 54.10
16        TRI_2021-03-03 53.99
17        TRI_2017-07-06 49.74
18        TRI_2020-10-22 48.11
19        TRI_2018-11-11 48.03
20        TRI_2021-02-16 47.98
21        TRI_2017-05-12 47.82
22        TRI_2017-01-29 47.43
23        TRI_2020-10-25 44.14
24        TRI_2020-12-20 42.69
25        TRI_2021-04-10 42.64
26        TRI_2021-06-02 37.66
27        TRI_2021-10-20 36.55
28        TRI_2017-12-26 36.39
29        TRI_2020-11-15 36.11
30        TRI_2020-11-12 35.02
31        TRI_2017-02-02 34.19
32        TRI_2021-05-15 34.06
33        TRI_2020-01-06 33.57
34        TRI_2021-12-23 33.15
35        TRI_2020-07-31 32.74
36        TRI_2018-11-07 32.35
37        TRI_2018-01-10 31.67
38        TRI_2020-09-22 31.39
39        TRI_2020-10-20 31.16
40        TRI_2017-11-23 30.33
41        TRI_2018-04-14 29.89
42        TRI_2018-08-09 29.86
43        TRI_2020-01-15 28.59
44        TRI_2021-10-01 28.05
45        TRI_2021-04-01 28.02
46        TRI_2020-09-15 27.71
47        TRI_2017-01-02 27.68
48        TRI_2018-11-10 25.75
49        TRI_2021-10-24 25.70
50        TRI_2021-09-15 25.67
51        TRI_2018-11-25 25.63
52        TRI_2020-09-04 24.46
53        TRI_2020-02-29 24.22
54        TRI_2020-03-20 23.95
55        TRI_2020-01-14 23.41
56        TRI_2021-09-09 23.40
57        TRI_2020-08-13 23.01
58        TRI_2018-11-30 22.15
59        TRI_2021-03-29 22.00
60        TRI_2017-04-30 21.51
61        TRI_2017-05-22 21.48
62        TRI_2020-01-26 21.47
63        TRI_2018-05-25 21.02
64        TRI_2020-12-19 20.83
65        TRI_2020-02-15 20.71
66        TRI_2020-12-31 20.71
67        TRI_2017-05-29 20.32
68        TRI_2017-05-17 20.27
69        TRI_2017-09-28 19.98
70        TRI_2020-12-08 19.91
71        TRI_2020-08-10 19.85
72        TRI_2017-07-07 19.53
73        TRI_2021-01-22 19.46
74        TRI_2018-04-29 19.39
75        TRI_2017-01-31 19.33
76        TRI_2018-10-30 18.67
77        TRI_2017-10-17 18.48
78        TRI_2018-04-03 18.20
79        TRI_2018-11-17 18.17
80        TRI_2021-10-02 18.17
81        TRI_2021-09-14 17.30
82        TRI_2018-06-09 17.21
83        TRI_2017-05-06 17.03
84        TRI_2021-06-20 16.89
85        TRI_2018-03-30 16.80
86        TRI_2018-05-24 16.76
87        TRI_2018-12-19 16.49
88        TRI_2021-03-30 16.39
89        TRI_2017-12-27 16.06
90        TRI_2020-08-11 15.98
91        TRI_2017-10-18 15.96
92        TRI_2020-03-16 15.88
93        TRI_2020-12-18 15.86
94        TRI_2020-07-30 15.72
95        TRI_2021-10-29 15.59
96        TRI_2018-10-14 15.45
97        TRI_2020-01-16 15.42
98        TRI_2021-05-21 15.40
99        TRI_2021-08-14 15.33
100        TRI_2021-04-21 15.26
101        TRI_2020-07-01 15.17
102        TRI_2021-03-02 15.15
103        TRI_2017-12-10 14.63
104        TRI_2021-12-24 14.57
105        TRI_2020-04-05 14.37
106        TRI_2021-02-09 14.37
107        TRI_2021-06-27 14.31
108        TRI_2021-02-21 14.29
109        TRI_2018-09-16 14.17
110        TRI_2021-06-01 14.17
111        TRI_2017-04-08 14.12
112        TRI_2020-12-28 14.06
113        TRI_2018-11-20 13.84
114        TRI_2017-08-01 13.78
115        TRI_2017-06-26 13.72
116        TRI_2021-12-27 13.65
117        TRI_2017-09-27 13.44
118        TRI_2018-10-13 13.37
119        TRI_2021-09-08 13.33
120        TRI_2020-04-06 13.07
121        TRI_2021-02-06 13.04
122        TRI_2017-07-19 12.91
123        TRI_2020-11-14 12.82
124        TRI_2021-03-26 12.76
125        TRI_2017-11-01 12.32
126        TRI_2021-04-24 12.18
127        TRI_2020-06-13 12.08
128        TRI_2017-05-11 12.04
129        TRI_2021-06-28 12.01
130        TRI_2017-05-26 11.79
131        TRI_2018-03-08 11.79
132        TRI_2017-05-18 11.73
133        TRI_2018-04-02 11.47
134        TRI_2020-07-27 11.35
135        TRI_2020-04-11 11.30
136        TRI_2021-01-19 11.29
137        TRI_2020-01-02 11.18
138        TRI_2020-12-05 11.05
139        TRI_2018-01-25 11.00
140        TRI_2018-06-30 10.99
141        TRI_2021-02-23 10.97
142        TRI_2021-10-19 10.80
143        TRI_2020-04-27 10.72
144        TRI_2017-10-13 10.61
145        TRI_2018-03-05 10.52
146        TRI_2020-12-21 10.49
147        TRI_2018-10-05 10.45
148        TRI_2021-09-07 10.42
149        TRI_2018-04-07 10.35
150        TRI_2018-12-21 10.29
151        TRI_2020-10-04 10.19
152        TRI_2020-04-10 10.01
153        TRI_2021-05-09 9.97
154        TRI_2017-04-24 9.93
155        TRI_2020-02-07 9.90
156        TRI_2020-10-31 9.79
157        TRI_2017-03-30 9.76
158        TRI_2018-12-02 9.68
159        TRI_2017-08-24 9.61
160        TRI_2018-09-26 9.53
161        TRI_2020-02-10 9.50
162        TRI_2017-07-17 9.43
163        TRI_2018-04-08 9.41
164        TRI_2021-06-19 9.40
165        TRI_2020-06-01 9.34
166        TRI_2020-10-02 9.32
167        TRI_2018-05-12 9.31
168        TRI_2018-05-29 9.24
169        TRI_2021-12-28 9.24
170        TRI_2017-12-07 9.18
171        TRI_2017-05-04 9.15
172        TRI_2018-07-01 9.12
173        TRI_2017-03-27 9.09
174        TRI_2021-02-08 9.06
175        TRI_2021-05-10 9.04
176        TRI_2017-10-19 9.02
177        TRI_2021-03-31 8.96
178        TRI_2017-08-14 8.82
179        TRI_2017-11-28 8.70
180        TRI_2020-10-19 8.60
181        TRI_2020-10-03 8.53
182        TRI_2021-02-05 8.39
183        TRI_2018-04-10 8.22
184        TRI_2018-05-31 8.20
185        TRI_2017-11-02 8.13
186        TRI_2021-02-15 7.91
187        TRI_2020-01-12 7.88
188        TRI_2020-03-02 7.78
189        TRI_2018-04-21 7.74
190        TRI_2020-04-08 7.74
191        TRI_2018-09-17 7.67
192        TRI_2018-09-30 7.66
193        TRI_2018-03-04 7.61
194        TRI_2020-05-08 7.58
195        TRI_2017-02-12 7.55
196        TRI_2018-05-07 7.50
197        TRI_2021-06-16 7.50
198        TRI_2020-05-04 7.44
199        TRI_2018-06-11 7.38
200        TRI_2020-11-07 7.30
201        TRI_2018-11-13 7.27
202        TRI_2020-06-24 7.24
203        TRI_2020-04-01 7.19
204        TRI_2017-08-08 7.10
205        TRI_2021-02-25 7.05
206        TRI_2017-12-06 7.00
207        TRI_2018-08-08 6.93
208        TRI_2020-09-14 6.93
209        TRI_2018-09-28 6.92
210        TRI_2020-10-21 6.88
211        TRI_2017-09-26 6.85
212        TRI_2017-09-29 6.81
213        TRI_2017-02-10 6.78
214        TRI_2021-06-17 6.77
215        TRI_2020-09-19 6.68
216        TRI_2020-04-04 6.53
217        TRI_2018-09-10 6.40
218        TRI_2018-05-26 6.39
219        TRI_2017-07-04 6.38
220        TRI_2020-12-07 6.37
221        TRI_2020-05-31 6.35
222        TRI_2017-08-29 6.15
223        TRI_2017-10-14 6.15
224        TRI_2017-01-30 6.02
225        TRI_2017-06-02 5.96
226        TRI_2021-06-18 5.79
227        TRI_2018-04-19 5.75
228        TRI_2020-09-20 5.74
229        TRI_2020-05-10 5.69
230        TRI_2018-08-12 5.68
231        TRI_2021-09-06 5.67
232        TRI_2018-06-06 5.57
233        TRI_2021-07-04 5.56
234        TRI_2020-03-19 5.55
235        TRI_2021-05-31 5.53
236        TRI_2018-03-09 5.20
237        TRI_2020-11-18 5.19
238        TRI_2017-06-20 5.16
239        TRI_2017-02-03 5.14
240        TRI_2021-02-14 5.13
241        TRI_2021-01-21 5.10
242        TRI_2018-04-20 5.02
243        TRI_2020-06-25 4.86
244        TRI_2021-02-18 4.83
245        TRI_2020-11-13 4.81
246        TRI_2020-10-23 4.72
247        TRI_2017-01-28 4.71
248        TRI_2021-12-22 4.68
249        TRI_2018-06-03 4.67
250        TRI_2017-11-24 4.63
251        TRI_2021-09-05 4.55
252        TRI_2020-08-07 4.54
253        TRI_2020-03-18 4.43
254        TRI_2020-10-06 4.43
255        TRI_2018-03-01 4.36
256        TRI_2017-07-31 4.33
257        TRI_2018-03-10 4.32
258        TRI_2018-11-09 4.32
259        TRI_2021-02-24 4.31
260        TRI_2018-09-09 4.30
261        TRI_2018-02-06 4.28
262        TRI_2018-03-03 4.24
263        TRI_2021-06-03 4.13
264        TRI_2018-03-14 4.05
265        TRI_2021-07-24 4.05
266        TRI_2018-08-07 4.03
267        TRI_2021-06-04 4.03
268        TRI_2021-10-18 4.00
269        TRI_2020-01-13 3.97
270        TRI_2017-06-01 3.93
271        TRI_2017-04-01 3.79
272        TRI_2021-04-23 3.79
273        TRI_2017-02-04 3.70
274        TRI_2018-06-02 3.69
275        TRI_2018-07-27 3.69
276        TRI_2021-10-17 3.69
277        TRI_2020-12-14 3.67
278        TRI_2018-06-29 3.65
279        TRI_2021-04-26 3.65
280        TRI_2020-12-11 3.60
281        TRI_2021-08-21 3.58
282        TRI_2018-03-02 3.54
283        TRI_2018-06-05 3.54
284        TRI_2020-03-24 3.54
285        TRI_2018-06-07 3.53
286        TRI_2018-11-05 3.48
287        TRI_2020-11-01 3.48
288        TRI_2017-10-21 3.47
289        TRI_2018-04-06 3.46
290        TRI_2021-03-06 3.45
291        TRI_2017-08-22 3.37
292        TRI_2017-08-03 3.35
293        TRI_2021-09-24 3.31
294        TRI_2020-04-16 3.30
295        TRI_2020-07-20 3.30
296        TRI_2020-02-06 3.27
297        TRI_2017-10-11 3.20
298        TRI_2020-07-29 3.19
299        TRI_2020-08-20 3.18
300        TRI_2018-10-15 3.12
301        TRI_2020-06-11 3.12
302        TRI_2017-08-02 3.07
303        TRI_2017-07-10 3.02
304        TRI_2018-04-13 2.98
305        TRI_2018-04-22 2.93
306        TRI_2021-07-27 2.92
307        TRI_2018-05-11 2.90
308        TRI_2021-01-20 2.89
309        TRI_2020-03-15 2.85
310        TRI_2020-03-23 2.85
311        TRI_2018-02-16 2.84
312        TRI_2020-02-09 2.81
313        TRI_2018-03-24 2.78
314        TRI_2017-12-31 2.74
315        TRI_2020-08-12 2.72
316        TRI_2018-01-31 2.65
317        TRI_2018-09-25 2.61
318        TRI_2017-04-23 2.58
319        TRI_2020-05-01 2.58
320        TRI_2021-06-26 2.53
321        TRI_2021-09-13 2.50
322        TRI_2021-02-03 2.46
323        TRI_2017-05-16 2.43
324        TRI_2017-10-31 2.36
325        TRI_2018-05-23 2.34
326        TRI_2021-03-27 2.34
327        TRI_2020-01-09 2.29
328        TRI_2017-06-22 2.28
329        TRI_2018-10-11 2.20
330        TRI_2017-05-27 2.18
331        TRI_2018-06-04 2.18
332        TRI_2018-11-24 2.17
333        TRI_2021-08-13 2.17
334        TRI_2018-08-28 2.15
335        TRI_2020-04-09 2.12
336        TRI_2017-06-13 2.11
337        TRI_2017-07-08 2.10
338        TRI_2017-03-15 2.09
339        TRI_2017-02-13 2.02
340        TRI_2020-04-15 2.02
341        TRI_2020-06-23 1.99
342        TRI_2020-08-09 1.98
343        TRI_2021-03-04 1.97
344        TRI_2021-04-25 1.97
345        TRI_2017-06-08 1.94
346        TRI_2020-01-23 1.94
347        TRI_2018-09-18 1.92
348        TRI_2017-05-28 1.90
349        TRI_2020-10-18 1.83
350        TRI_2020-08-15 1.78
351        TRI_2021-05-30 1.78
352        TRI_2021-12-20 1.73
353        TRI_2021-10-27 1.72
354        TRI_2020-04-13 1.70
355        TRI_2020-05-22 1.68
356        TRI_2017-08-27 1.64
357        TRI_2018-04-12 1.64
358        TRI_2017-09-09 1.63
359        TRI_2020-11-23 1.62
360        TRI_2020-04-26 1.61
361        TRI_2018-01-05 1.60
362        TRI_2020-01-05 1.58
363        TRI_2018-06-10 1.56
364        TRI_2018-08-16 1.56
365        TRI_2020-08-16 1.54
366        TRI_2021-08-12 1.52
367        TRI_2018-09-27 1.48
368        TRI_2017-04-07 1.45
369        TRI_2018-04-27 1.45
370        TRI_2018-07-14 1.45
371        TRI_2020-04-18 1.44
372        TRI_2020-08-19 1.44
373        TRI_2020-01-27 1.43
374        TRI_2021-02-22 1.42
375        TRI_2020-03-25 1.41
376        TRI_2017-07-22 1.39
377        TRI_2021-10-14 1.39
378        TRI_2018-05-30 1.38
379        TRI_2020-11-11 1.36
380        TRI_2017-05-30 1.35
381        TRI_2020-04-12 1.35
382        TRI_2021-05-08 1.33
383        TRI_2020-04-17 1.31
384        TRI_2018-07-04 1.30
385        TRI_2021-02-20 1.30
386        TRI_2018-05-08 1.28
387        TRI_2017-07-29 1.27
388        TRI_2017-08-28 1.27
389        TRI_2021-09-25 1.27
390        TRI_2018-08-06 1.26
391        TRI_2020-09-18 1.26
392        TRI_2020-01-24 1.23
393        TRI_2021-04-09 1.23
394        TRI_2021-06-21 1.23
395        TRI_2017-06-27 1.22
396        TRI_2021-12-21 1.17
397        TRI_2017-07-30 1.16
398        TRI_2020-04-25 1.16
399        TRI_2017-08-15 1.13
400        TRI_2017-07-18 1.12
401        TRI_2018-10-12 1.12
402        TRI_2020-07-21 1.12
403        TRI_2018-09-12 1.11
404        TRI_2018-03-29 1.10
405        TRI_2017-08-13 1.09
406        TRI_2018-02-28 1.09
407        TRI_2018-07-26 1.09
408        TRI_2018-10-27 1.09
409        TRI_2018-08-05 1.08
410        TRI_2021-07-22 1.08
411        TRI_2018-04-30 1.07
412        TRI_2020-11-17 1.07
413        TRI_2017-05-05 1.05
414        TRI_2017-06-21 1.04
415        TRI_2020-01-25 1.04
416        TRI_2017-05-03 1.03
417        TRI_2018-09-05 1.02
418        TRI_2020-12-29 1.02
419        TRI_2021-02-01 1.02
420        TRI_2020-06-26 1.01
421        TRI_2020-02-14 0.98
422        TRI_2017-04-09 0.95
423        TRI_2017-01-25 0.93
424        TRI_2017-03-22 0.93
425        TRI_2018-12-13 0.93
426        TRI_2018-11-29 0.89
427        TRI_2020-06-27 0.87
428        TRI_2018-12-26 0.86
429        TRI_2021-03-05 0.85
430        TRI_2018-01-15 0.84
431        TRI_2020-03-17 0.84
432        TRI_2018-08-15 0.82
433        TRI_2020-11-08 0.80
434        TRI_2017-12-05 0.79
435        TRI_2020-09-21 0.79
436        TRI_2021-10-31 0.75
437        TRI_2017-06-03 0.74
438        TRI_2018-05-20 0.74
439        TRI_2018-05-06 0.73
440        TRI_2017-07-16 0.72
441        TRI_2018-06-20 0.70
442        TRI_2017-05-24 0.69
443        TRI_2018-09-15 0.69
444        TRI_2021-05-04 0.69
445        TRI_2020-11-06 0.66
446        TRI_2020-03-05 0.65
447        TRI_2020-04-22 0.65
448        TRI_2020-05-05 0.64
449        TRI_2020-04-14 0.63
450        TRI_2017-10-15 0.62
451        TRI_2020-01-08 0.62
452        TRI_2021-09-23 0.62
453        TRI_2020-05-09 0.60
454        TRI_2018-06-01 0.59
455        TRI_2020-12-16 0.59
456        TRI_2017-07-21 0.58
457        TRI_2018-01-23 0.58
458        TRI_2021-06-22 0.57
459        TRI_2021-07-23 0.57
460        TRI_2017-08-07 0.56
461        TRI_2020-09-16 0.55
462        TRI_2021-12-04 0.53
463        TRI_2021-03-11 0.51
464        TRI_2017-07-09 0.50
465        TRI_2021-06-14 0.50
466        TRI_2017-08-23 0.49
467        TRI_2017-11-22 0.49
468        TRI_2018-01-08 0.49
469        TRI_2018-06-08 0.48
470        TRI_2018-05-13 0.46
471        TRI_2021-11-09 0.45
472        TRI_2017-05-02 0.44
473        TRI_2017-06-06 0.44
474        TRI_2020-02-17 0.44
475        TRI_2020-04-02 0.44
476        TRI_2020-05-13 0.44
477        TRI_2021-02-19 0.44
478        TRI_2018-01-16 0.43
479        TRI_2018-11-12 0.43
480        TRI_2018-04-04 0.41
481        TRI_2018-11-03 0.41
482        TRI_2017-04-29 0.40
483        TRI_2017-03-02 0.39
484        TRI_2018-01-24 0.39
485        TRI_2020-06-02 0.38
486        TRI_2021-04-08 0.38
487        TRI_2021-06-15 0.38
488        TRI_2017-04-28 0.37
489        TRI_2021-10-03 0.37
490        TRI_2018-04-01 0.36
491        TRI_2021-03-01 0.36
492        TRI_2020-09-03 0.35
493        TRI_2020-03-01 0.34
494        TRI_2020-08-06 0.28
495        TRI_2020-12-27 0.28
496        TRI_2021-09-30 0.28
497        TRI_2017-05-21 0.27
498        TRI_2017-05-09 0.26
499        TRI_2020-03-30 0.25
500        TRI_2020-02-28 0.24
501        TRI_2021-04-22 0.24
502        TRI_2017-12-11 0.23
503        TRI_2020-12-04 0.23
504        TRI_2017-08-25 0.21
505        TRI_2021-08-23 0.19
506        TRI_2020-08-08 0.17
507        TRI_2020-09-23 0.17
508        TRI_2018-02-15 0.15
509        TRI_2018-11-16 0.15
510        TRI_2017-08-26 0.14
511        TRI_2018-10-28 0.14
512        TRI_2020-02-13 0.14
513        TRI_2020-07-19 0.14
514        TRI_2020-03-13 0.12
515        TRI_2018-07-03 0.11
516        TRI_2021-05-07 0.11
517        TRI_2018-09-11 0.10
518        TRI_2017-09-14 0.06
519        TRI_2021-02-17 0.06
520        TRI_2017-01-03 0.00
521        TRI_2017-01-04 0.00
522        TRI_2017-01-05 0.00
523        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)