Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2017-02-26	219.36
2 TRI_2017-06-03	53.50
3 TRI_2017-04-01	39.84
4 TRI_2017-06-27	38.85
5 TRI_2020-11-02	29.89
6 TRI_2020-07-21	22.76
7 TRI_2020-08-10	20.22
8 TRI_2018-09-18	19.45
9 TRI_2021-06-03	18.83
10 TRI_2021-05-08	18.23
11 TRI_2017-06-02	18.06
12 TRI_2017-09-09	17.82
13 TRI_2018-09-12	16.62
14 TRI_2020-04-06	15.24
15 TRI_2018-07-02	15.05
16 TRI_2020-05-09	14.02
17 TRI_2017-11-02	13.91
18 TRI_2018-11-13	13.53
19 TRI_2017-01-02	13.41
20 TRI_2021-07-12	13.19
21 TRI_2020-06-03	12.75
22 TRI_2017-01-25	12.20
23 TRI_2020-06-27	11.96
24 TRI_2017-03-02	11.93
25 TRI_2017-10-20	11.82
26 TRI_2020-04-12	10.98
27 TRI_2021-05-21	10.77
28 TRI_2017-07-10	10.74
29 TRI_2017-07-30	10.67
30 TRI_2020-09-14	9.63
31 TRI_2018-10-06	9.59
32 TRI_2017-08-08	9.57
33 TRI_2017-02-28	9.37
34 TRI_2017-05-02	9.25
35 TRI_2018-09-16	8.88
36 TRI_2017-02-05	8.86
37 TRI_2018-12-02	8.84
38 TRI_2017-07-17	8.70
39 TRI_2017-03-22	8.58
40 TRI_2018-04-22	8.58
41 TRI_2021-05-04	8.23
42 TRI_2021-05-11	7.97
43 TRI_2017-08-03	7.65
44 TRI_2017-03-31	7.50
45 TRI_2020-08-16	7.48
46 TRI_2018-04-08	7.32
47 TRI_2017-10-11	7.15
48 TRI_2020-04-01	7.15
49 TRI_2021-06-17	7.08
50 TRI_2020-04-11	6.95
51 TRI_2017-05-04	6.89
52 TRI_2020-08-13	6.85
53 TRI_2021-06-18	6.76
54 TRI_2018-12-21	6.53
55 TRI_2020-04-16	6.50
56 TRI_2020-07-01	6.50
57 TRI_2021-12-28	6.50
58 TRI_2017-10-21	6.48
59 TRI_2018-03-04	6.42
60 TRI_2021-01-22	6.39
61 TRI_2021-03-03	6.32
62 TRI_2017-04-25	6.23
63 TRI_2021-09-15	6.19
64 TRI_2017-06-30	6.05
65 TRI_2020-12-29	6.04
66 TRI_2017-06-09	5.88
67 TRI_2018-11-30	5.86
68 TRI_2020-12-23	5.52
69 TRI_2020-10-01	5.45
70 TRI_2018-02-17	5.43
71 TRI_2020-01-06	5.37
72 TRI_2018-10-04	5.18
73 TRI_2018-07-04	5.16
74 TRI_2021-10-01	5.15
75 TRI_2018-11-21	5.09
76 TRI_2021-04-11	5.03
77 TRI_2018-12-13	4.94
78 TRI_2020-12-20	4.84
79 TRI_2017-12-14	4.80
80 TRI_2018-06-06	4.65
81 TRI_2020-10-31	4.58
82 TRI_2020-07-27	4.55
83 TRI_2021-11-27	4.54
84 TRI_2018-05-07	4.53
85 TRI_2017-06-29	4.52
86 TRI_2018-06-04	4.52
87 TRI_2020-05-12	4.52
88 TRI_2020-08-12	4.49
89 TRI_2020-05-05	4.48
90 TRI_2021-07-06	4.40
91 TRI_2020-09-21	4.38
92 TRI_2021-02-25	4.31
93 TRI_2021-11-02	4.29
94 TRI_2017-09-14	4.27
95 TRI_2020-10-18	4.27
96 TRI_2018-08-07	4.14
97 TRI_2020-03-16	4.11
98 TRI_2020-12-31	4.10
99 TRI_2020-11-01	4.06
100 TRI_2021-06-16	4.03
101 TRI_2021-05-31	4.02
102 TRI_2018-01-16	4.00
103 TRI_2018-04-12	3.99
104 TRI_2020-02-01	3.97
105 TRI_2018-08-06	3.90
106 TRI_2020-06-11	3.89
107 TRI_2017-08-23	3.84
108 TRI_2020-12-28	3.82
109 TRI_2021-12-04	3.70
110 TRI_2020-04-10	3.61
111 TRI_2017-02-23	3.58
112 TRI_2018-05-31	3.57
113 TRI_2021-12-25	3.50
114 TRI_2020-01-13	3.44
115 TRI_2017-09-26	3.43
116 TRI_2017-05-26	3.42
117 TRI_2020-08-19	3.42
118 TRI_2020-04-30	3.32
119 TRI_2021-06-04	3.32
120 TRI_2017-09-27	3.31
121 TRI_2018-10-30	3.31
122 TRI_2017-05-06	3.30
123 TRI_2018-06-05	3.28
124 TRI_2021-06-22	3.25
125 TRI_2018-05-12	3.24
126 TRI_2020-08-21	3.23
127 TRI_2018-06-11	3.22
128 TRI_2017-02-03	3.21
129 TRI_2021-02-08	3.20
130 TRI_2020-06-26	3.18
131 TRI_2017-05-27	3.12
132 TRI_2017-09-29	3.11
133 TRI_2020-05-04	3.06
134 TRI_2020-10-06	2.96
135 TRI_2021-09-07	2.91
136 TRI_2017-08-15	2.83
137 TRI_2020-09-30	2.83
138 TRI_2017-04-09	2.78
139 TRI_2020-05-01	2.78
140 TRI_2020-06-24	2.74
141 TRI_2018-07-01	2.73
142 TRI_2020-07-30	2.73
143 TRI_2017-11-22	2.71
144 TRI_2017-02-04	2.70
145 TRI_2017-04-23	2.69
146 TRI_2017-09-28	2.67
147 TRI_2021-08-07	2.67
148 TRI_2018-03-24	2.65
149 TRI_2020-11-18	2.63
150 TRI_2020-07-29	2.61
151 TRI_2018-04-20	2.58
152 TRI_2021-04-30	2.58
153 TRI_2017-06-28	2.55
154 TRI_2020-07-20	2.52
155 TRI_2021-10-18	2.51
156 TRI_2020-02-10	2.50
157 TRI_2021-06-26	2.49
158 TRI_2020-01-28	2.48
159 TRI_2020-09-23	2.48
160 TRI_2021-06-01	2.46
161 TRI_2017-05-29	2.45
162 TRI_2021-03-11	2.45
163 TRI_2020-12-06	2.44
164 TRI_2020-06-13	2.43
165 TRI_2018-09-17	2.41
166 TRI_2020-07-31	2.40
167 TRI_2017-02-25	2.39
168 TRI_2021-07-27	2.39
169 TRI_2017-05-09	2.37
170 TRI_2018-06-03	2.37
171 TRI_2018-05-23	2.29
172 TRI_2017-08-29	2.27
173 TRI_2018-04-21	2.26
174 TRI_2017-04-24	2.24
175 TRI_2021-05-24	2.21
176 TRI_2018-05-24	2.20
177 TRI_2021-02-15	2.20
178 TRI_2021-09-23	2.17
179 TRI_2017-07-07	2.16
180 TRI_2017-08-02	2.10
181 TRI_2017-12-15	2.10
182 TRI_2018-07-27	2.07
183 TRI_2020-12-21	2.06
184 TRI_2017-02-01	2.04
185 TRI_2020-10-23	2.03
186 TRI_2018-03-02	2.01
187 TRI_2020-08-15	1.99
188 TRI_2017-11-28	1.97
189 TRI_2020-09-22	1.95
190 TRI_2017-08-22	1.92
191 TRI_2021-02-01	1.86
192 TRI_2021-12-27	1.86
193 TRI_2020-03-19	1.84
194 TRI_2018-06-09	1.83
195 TRI_2018-09-10	1.83
196 TRI_2018-01-05	1.82
197 TRI_2020-10-05	1.78
198 TRI_2017-03-30	1.72
199 TRI_2017-06-19	1.72
200 TRI_2017-07-08	1.72
201 TRI_2017-07-20	1.71
202 TRI_2018-12-19	1.70
203 TRI_2018-05-08	1.69
204 TRI_2021-05-15	1.68
205 TRI_2018-06-29	1.67
206 TRI_2021-02-09	1.66
207 TRI_2021-09-13	1.65
208 TRI_2018-08-12	1.62
209 TRI_2018-05-30	1.60
210 TRI_2017-07-29	1.59
211 TRI_2017-12-10	1.57
212 TRI_2020-04-17	1.57
213 TRI_2020-08-09	1.57
214 TRI_2021-05-10	1.57
215 TRI_2021-10-21	1.55
216 TRI_2018-08-29	1.53
217 TRI_2017-04-07	1.51
218 TRI_2020-03-01	1.50
219 TRI_2020-05-10	1.47
220 TRI_2021-08-21	1.47
221 TRI_2020-02-17	1.46
222 TRI_2020-05-11	1.43
223 TRI_2020-09-04	1.43
224 TRI_2017-03-27	1.41
225 TRI_2020-10-04	1.40
226 TRI_2021-06-21	1.40
227 TRI_2017-10-13	1.38
228 TRI_2017-12-08	1.37
229 TRI_2017-12-31	1.34
230 TRI_2020-01-26	1.34
231 TRI_2018-04-27	1.31
232 TRI_2017-08-27	1.28
233 TRI_2018-11-23	1.28
234 TRI_2017-08-14	1.27
235 TRI_2020-09-20	1.26
236 TRI_2017-05-19	1.23
237 TRI_2017-12-26	1.23
238 TRI_2020-02-13	1.23
239 TRI_2021-04-24	1.23
240 TRI_2021-09-25	1.23
241 TRI_2017-10-31	1.21
242 TRI_2018-09-30	1.19
243 TRI_2020-06-25	1.19
244 TRI_2018-02-16	1.17
245 TRI_2021-08-13	1.17
246 TRI_2018-01-10	1.16
247 TRI_2021-09-08	1.14
248 TRI_2017-05-28	1.13
249 TRI_2017-12-30	1.13
250 TRI_2018-01-15	1.11
251 TRI_2017-12-25	1.10
252 TRI_2020-10-25	1.10
253 TRI_2020-11-11	1.10
254 TRI_2017-07-04	1.09
255 TRI_2017-11-24	1.04
256 TRI_2020-01-10	1.04
257 TRI_2018-01-31	1.02
258 TRI_2020-06-01	1.02
259 TRI_2020-07-28	1.02
260 TRI_2021-09-06	1.01
261 TRI_2017-07-22	1.00
262 TRI_2018-11-29	0.99
263 TRI_2021-04-08	0.99
264 TRI_2018-08-28	0.98
265 TRI_2020-02-08	0.98
266 TRI_2018-08-16	0.96
267 TRI_2017-05-18	0.95
268 TRI_2017-08-13	0.95
269 TRI_2021-11-20	0.94
270 TRI_2018-03-29	0.93
271 TRI_2021-03-30	0.93
272 TRI_2018-03-03	0.92
273 TRI_2020-06-02	0.92
274 TRI_2017-06-18	0.90
275 TRI_2020-02-16	0.90
276 TRI_2021-03-31	0.90
277 TRI_2018-08-08	0.89
278 TRI_2021-04-27	0.89
279 TRI_2021-08-12	0.88
280 TRI_2018-08-15	0.87
281 TRI_2020-12-07	0.87
282 TRI_2017-06-01	0.86
283 TRI_2021-12-24	0.86
284 TRI_2018-10-29	0.85
285 TRI_2020-05-22	0.85
286 TRI_2021-05-16	0.81
287 TRI_2017-03-05	0.80
288 TRI_2017-12-07	0.74
289 TRI_2021-10-04	0.74
290 TRI_2020-01-12	0.70
291 TRI_2018-05-25	0.69
292 TRI_2021-02-14	0.69
293 TRI_2021-07-24	0.66
294 TRI_2021-07-29	0.66
295 TRI_2021-08-14	0.63
296 TRI_2021-09-09	0.63
297 TRI_2020-02-15	0.62
298 TRI_2017-06-08	0.60
299 TRI_2021-09-26	0.60
300 TRI_2017-03-16	0.58
301 TRI_2018-03-05	0.58
302 TRI_2017-05-03	0.57
303 TRI_2020-02-27	0.56
304 TRI_2021-09-12	0.51
305 TRI_2021-11-19	0.50
306 TRI_2018-04-30	0.49
307 TRI_2017-12-06	0.48
308 TRI_2018-05-06	0.48
309 TRI_2018-09-20	0.47
310 TRI_2018-06-30	0.46
311 TRI_2021-10-19	0.46
312 TRI_2017-11-23	0.45
313 TRI_2017-03-06	0.44
314 TRI_2017-11-03	0.42
315 TRI_2018-07-26	0.42
316 TRI_2018-02-27	0.40
317 TRI_2020-05-13	0.40
318 TRI_2017-11-08	0.39
319 TRI_2017-06-20	0.38
320 TRI_2020-05-08	0.38
321 TRI_2018-06-10	0.36
322 TRI_2018-10-05	0.36
323 TRI_2017-09-25	0.34
324 TRI_2020-04-27	0.31
325 TRI_2017-06-06	0.30
326 TRI_2021-10-24	0.30
327 TRI_2017-05-12	0.28
328 TRI_2020-02-28	0.28
329 TRI_2020-12-05	0.27
330 TRI_2020-04-26	0.24
331 TRI_2021-05-06	0.24
332 TRI_2017-07-21	0.23
333 TRI_2020-01-02	0.23
334 TRI_2021-01-02	0.23
335 TRI_2018-08-13	0.22
336 TRI_2020-09-05	0.22
337 TRI_2017-05-31	0.21
338 TRI_2017-01-01	0.19
339 TRI_2020-09-03	0.18
340 TRI_2018-01-18	0.14
341 TRI_2018-07-14	0.14
342 TRI_2020-07-19	0.13
343 TRI_2021-06-28	0.12
344 TRI_2017-06-13	0.11
345 TRI_2017-08-28	0.11
346 TRI_2017-12-12	0.08
347 TRI_2017-01-03	0.00
348 TRI_2017-01-04	0.00
349 TRI_2017-01-05	0.00
350 TRI_2017-01-06	0.00

Rank, NPP code, date

mSv

1 TRI_2017-02-26

219.36

53.50

39.84

38.85

29.89

22.76

20.22

19.45

18.83

18.23

18.06

17.82

16.62

15.24

15.05

14.02

13.91

13.53

13.41

13.19

12.75

12.20

11.96

11.93

11.82

10.98

10.77

10.74

10.67

9.63

9.59

9.57

9.37

9.25

8.88

8.86

8.84

8.70

8.58

8.58

8.23

7.97

7.65

7.50

7.48

7.32

7.15

7.15

7.08

6.95

6.89

6.85

6.76

6.53

6.50

6.50

6.50

6.48

6.42

6.39

6.32

6.23

6.19

6.05

6.04

5.88

5.86

5.52

5.45

5.43

5.37

5.18

5.16

5.15

5.09

5.03

4.94

4.84

4.80

4.65

4.58

4.55

4.54

4.53

4.52

4.52

4.52

4.49

4.48

4.40

4.38

4.31

4.29

4.27

4.27

4.14

4.11

4.10

4.06

4.03

4.02

4.00

3.99

3.97

3.90

3.89

3.84

3.82

3.70

3.61

3.58

3.57

3.50

3.44

3.43

3.42

3.42

3.32

3.32

3.31

3.31

3.30

3.28

3.25

3.24

3.23

3.22

3.21

3.20

3.18

3.12

3.11

3.06

2.96

2.91

2.83

2.83

2.78

2.78

2.74

2.73

2.73

2.71

2.70

2.69

2.67

2.67

2.65

2.63

2.61

2.58

2.58

2.55

2.52

2.51

2.50

2.49

2.48

2.48

2.46

2.45

2.45

2.44

2.43

2.41

2.40

2.39

2.39

2.37

2.37

2.29

2.27

2.26

2.24

2.21

2.20

2.20

2.17

2.16

2.10

2.10

2.07

2.06

2.04

2.03

2.01

1.99

1.97

1.95

1.92

1.86

1.86

1.84

1.83

1.83

1.82

1.78

1.72

1.72

1.72

1.71

1.70

1.69

1.68

1.67

1.66

1.65

1.62

1.60

1.59

1.57

1.57

1.57

1.57

1.55

1.53

1.51

1.50

1.47

1.47

1.46

1.43

1.43

1.41

1.40

1.40

1.38

1.37

1.34

1.34

1.31

1.28

1.28

1.27

1.26

1.23

1.23

1.23

1.23

1.23

1.21

1.19

1.19

1.17

1.17

1.16

1.14

1.13

1.13

1.11

1.10

1.10

1.10

1.09

1.04

1.04

1.02

1.02

1.02

1.01

1.00

0.99

0.99

0.98

0.98

0.96

0.95

0.95

0.94

0.93

0.93

0.92

0.92

0.90

0.90

0.90

0.89

0.89

0.88

0.87

0.87

0.86

0.86

0.85

0.85

0.81

0.80

0.74

0.74

0.70

0.69

0.69

0.66

0.66

0.63

0.63

0.62

0.60

0.60

0.58

0.58

0.57

0.56

0.51

0.50

0.49

0.48

0.48

0.47

0.46

0.46

0.45

0.44

0.42

0.42

0.40

0.40

0.39

0.38

0.38

0.36

0.36

0.34

0.31

0.30

0.30

0.28

0.28

0.27

0.24

0.24

0.23

0.23

0.23

0.22

0.22

0.21

0.19

0.18

0.14

0.14

0.13

0.12

0.11

0.11

0.08

0.00

0.00

0.00

0.00

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.

Major accident in one of the four reactors of Tricastin NPP (4 × 2785 MWth)

Possible impact on the inhabitants of :

Lausanne (285 km) CHE

See the potential impact on the following geographical areas: Europe (51 countries) Spain France Italy Switzerland

ADDITIONAL EXPLANATION ON THE TABLE

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)