Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2021-12-23	31.49
2 TRI_2017-09-28	23.54
3 TRI_2017-07-06	20.86
4 TRI_2017-01-29	19.16
5 TRI_2021-10-19	18.30
6 TRI_2017-02-01	17.28
7 TRI_2017-04-08	17.13
8 TRI_2020-11-09	16.12
9 TRI_2017-10-17	16.06
10 TRI_2018-11-25	15.69
11 TRI_2021-02-16	15.61
12 TRI_2018-05-29	14.95
13 TRI_2020-11-25	14.22
14 TRI_2017-02-10	14.07
15 TRI_2017-02-02	13.63
16 TRI_2020-06-13	13.41
17 TRI_2020-12-15	12.75
18 TRI_2021-09-14	12.65
19 TRI_2021-03-02	11.97
20 TRI_2020-02-07	11.94
21 TRI_2018-06-11	11.89
22 TRI_2017-05-12	11.65
23 TRI_2018-04-07	11.57
24 TRI_2018-11-07	11.15
25 TRI_2018-11-09	10.84
26 TRI_2017-10-14	10.44
27 TRI_2021-12-22	10.38
28 TRI_2018-04-14	9.97
29 TRI_2021-12-24	9.79
30 TRI_2020-12-19	9.69
31 TRI_2018-03-10	9.54
32 TRI_2017-10-19	9.11
33 TRI_2021-04-10	9.08
34 TRI_2020-01-24	8.77
35 TRI_2021-04-28	8.70
36 TRI_2018-03-30	8.67
37 TRI_2020-10-23	8.64
38 TRI_2020-04-06	8.62
39 TRI_2020-10-20	8.59
40 TRI_2021-03-30	8.55
41 TRI_2018-03-05	8.42
42 TRI_2017-08-26	8.30
43 TRI_2021-02-04	8.29
44 TRI_2021-02-23	8.24
45 TRI_2017-07-19	8.13
46 TRI_2021-03-31	8.12
47 TRI_2018-05-26	8.04
48 TRI_2020-11-12	8.02
49 TRI_2017-03-03	7.98
50 TRI_2021-02-09	7.88
51 TRI_2020-01-15	7.75
52 TRI_2018-10-13	7.72
53 TRI_2020-11-07	7.66
54 TRI_2021-06-02	7.59
55 TRI_2021-02-21	7.43
56 TRI_2018-06-03	7.09
57 TRI_2020-01-16	7.01
58 TRI_2018-11-20	6.88
59 TRI_2018-09-16	6.76
60 TRI_2018-06-06	6.73
61 TRI_2017-07-31	6.71
62 TRI_2017-10-16	6.61
63 TRI_2020-09-14	6.38
64 TRI_2017-10-18	6.35
65 TRI_2017-05-26	6.32
66 TRI_2020-07-30	6.26
67 TRI_2018-10-14	6.22
68 TRI_2017-05-22	6.11
69 TRI_2018-11-29	6.04
70 TRI_2020-11-14	6.01
71 TRI_2018-10-12	5.93
72 TRI_2018-06-10	5.89
73 TRI_2017-07-18	5.86
74 TRI_2021-06-17	5.84
75 TRI_2021-02-15	5.83
76 TRI_2017-06-01	5.81
77 TRI_2021-03-29	5.79
78 TRI_2021-10-20	5.68
79 TRI_2017-09-27	5.45
80 TRI_2021-09-24	5.39
81 TRI_2018-04-02	5.36
82 TRI_2020-12-18	5.21
83 TRI_2018-04-08	5.20
84 TRI_2017-05-31	5.17
85 TRI_2021-09-09	5.16
86 TRI_2017-01-31	5.13
87 TRI_2020-01-14	5.07
88 TRI_2017-03-27	5.05
89 TRI_2020-03-02	5.05
90 TRI_2021-10-18	4.99
91 TRI_2017-03-30	4.83
92 TRI_2020-10-22	4.68
93 TRI_2021-02-19	4.68
94 TRI_2017-02-04	4.65
95 TRI_2018-09-28	4.51
96 TRI_2017-11-23	4.48
97 TRI_2017-02-03	4.45
98 TRI_2020-11-08	4.42
99 TRI_2018-04-27	4.41
100 TRI_2021-06-18	4.35
101 TRI_2020-04-27	4.30
102 TRI_2020-04-05	4.25
103 TRI_2020-08-20	4.20
104 TRI_2021-09-08	4.18
105 TRI_2021-01-19	4.17
106 TRI_2017-10-13	4.15
107 TRI_2018-06-04	4.12
108 TRI_2020-11-15	4.12
109 TRI_2020-03-18	4.09
110 TRI_2020-03-15	4.04
111 TRI_2017-08-14	4.03
112 TRI_2021-02-18	4.03
113 TRI_2021-06-19	4.03
114 TRI_2017-05-17	3.92
115 TRI_2018-04-13	3.92
116 TRI_2020-11-13	3.89
117 TRI_2021-02-24	3.89
118 TRI_2020-02-15	3.78
119 TRI_2021-01-20	3.73
120 TRI_2020-03-19	3.72
121 TRI_2017-05-18	3.71
122 TRI_2018-04-04	3.63
123 TRI_2021-07-23	3.59
124 TRI_2017-10-15	3.56
125 TRI_2020-05-04	3.56
126 TRI_2021-10-03	3.55
127 TRI_2018-05-25	3.44
128 TRI_2018-03-11	3.39
129 TRI_2018-09-17	3.33
130 TRI_2018-06-09	3.31
131 TRI_2018-03-04	3.26
132 TRI_2020-06-11	3.23
133 TRI_2020-10-03	3.19
134 TRI_2017-05-11	3.18
135 TRI_2021-02-06	3.18
136 TRI_2021-05-10	3.17
137 TRI_2021-09-13	3.12
138 TRI_2020-05-10	3.08
139 TRI_2021-02-14	3.07
140 TRI_2020-04-15	3.01
141 TRI_2018-08-07	3.00
142 TRI_2020-06-24	2.99
143 TRI_2018-08-06	2.97
144 TRI_2017-12-11	2.94
145 TRI_2020-08-10	2.88
146 TRI_2021-05-31	2.86
147 TRI_2018-01-24	2.84
148 TRI_2021-10-17	2.84
149 TRI_2018-11-01	2.83
150 TRI_2021-05-09	2.82
151 TRI_2021-02-05	2.80
152 TRI_2017-07-05	2.79
153 TRI_2020-10-21	2.79
154 TRI_2018-11-10	2.78
155 TRI_2020-06-25	2.78
156 TRI_2017-11-01	2.73
157 TRI_2018-11-12	2.72
158 TRI_2018-08-08	2.71
159 TRI_2020-12-05	2.71
160 TRI_2020-12-14	2.69
161 TRI_2018-08-28	2.61
162 TRI_2018-01-10	2.59
163 TRI_2020-04-26	2.57
164 TRI_2020-09-04	2.56
165 TRI_2018-05-12	2.49
166 TRI_2021-09-02	2.46
167 TRI_2017-01-28	2.44
168 TRI_2017-08-23	2.43
169 TRI_2020-01-25	2.42
170 TRI_2018-05-27	2.41
171 TRI_2020-08-11	2.40
172 TRI_2018-03-09	2.36
173 TRI_2021-10-27	2.36
174 TRI_2018-11-21	2.35
175 TRI_2017-11-02	2.33
176 TRI_2021-10-01	2.33
177 TRI_2020-12-08	2.31
178 TRI_2018-11-13	2.30
179 TRI_2017-08-29	2.24
180 TRI_2020-10-19	2.23
181 TRI_2018-04-10	2.21
182 TRI_2021-10-31	2.20
183 TRI_2020-01-12	2.17
184 TRI_2020-03-16	2.14
185 TRI_2021-06-03	2.13
186 TRI_2018-11-11	2.12
187 TRI_2018-10-05	2.11
188 TRI_2021-04-09	2.10
189 TRI_2017-07-08	2.06
190 TRI_2021-06-27	2.03
191 TRI_2020-12-16	2.02
192 TRI_2017-05-16	2.00
193 TRI_2017-08-28	1.97
194 TRI_2018-02-27	1.96
195 TRI_2021-10-02	1.96
196 TRI_2017-05-29	1.94
197 TRI_2020-12-07	1.94
198 TRI_2018-04-21	1.93
199 TRI_2018-10-11	1.91
200 TRI_2018-11-24	1.89
201 TRI_2021-09-25	1.87
202 TRI_2018-10-04	1.84
203 TRI_2020-11-26	1.84
204 TRI_2017-05-02	1.82
205 TRI_2017-08-25	1.82
206 TRI_2020-05-09	1.82
207 TRI_2017-12-27	1.77
208 TRI_2020-08-19	1.77
209 TRI_2020-11-23	1.73
210 TRI_2021-01-21	1.73
211 TRI_2021-10-29	1.73
212 TRI_2018-01-14	1.70
213 TRI_2020-12-04	1.69
214 TRI_2018-03-08	1.66
215 TRI_2020-02-29	1.65
216 TRI_2018-04-29	1.64
217 TRI_2020-01-13	1.62
218 TRI_2020-04-04	1.61
219 TRI_2017-04-30	1.60
220 TRI_2020-10-18	1.58
221 TRI_2020-02-06	1.57
222 TRI_2021-12-21	1.57
223 TRI_2021-05-08	1.56
224 TRI_2017-06-26	1.55
225 TRI_2018-05-23	1.49
226 TRI_2020-11-18	1.49
227 TRI_2017-03-22	1.47
228 TRI_2020-01-09	1.47
229 TRI_2017-05-09	1.46
230 TRI_2017-02-15	1.45
231 TRI_2017-05-28	1.45
232 TRI_2020-10-02	1.44
233 TRI_2021-07-22	1.44
234 TRI_2020-11-06	1.37
235 TRI_2020-10-04	1.34
236 TRI_2018-04-12	1.28
237 TRI_2018-07-01	1.28
238 TRI_2018-06-05	1.27
239 TRI_2020-04-17	1.27
240 TRI_2021-06-16	1.25
241 TRI_2018-03-14	1.24
242 TRI_2021-04-08	1.24
243 TRI_2020-09-13	1.15
244 TRI_2020-05-07	1.12
245 TRI_2021-02-22	1.11
246 TRI_2018-03-01	1.09
247 TRI_2017-09-26	1.08
248 TRI_2018-06-02	1.07
249 TRI_2018-01-09	1.06
250 TRI_2020-01-26	1.06
251 TRI_2021-06-28	1.06
252 TRI_2020-04-11	1.05
253 TRI_2020-12-17	1.05
254 TRI_2020-05-08	1.04
255 TRI_2017-06-18	1.03
256 TRI_2017-11-04	1.02
257 TRI_2020-12-20	1.02
258 TRI_2017-07-03	1.01
259 TRI_2018-03-02	1.01
260 TRI_2020-09-18	1.01
261 TRI_2018-09-25	1.00
262 TRI_2021-06-01	1.00
263 TRI_2021-06-20	1.00
264 TRI_2021-09-23	0.99
265 TRI_2017-07-07	0.98
266 TRI_2017-05-30	0.97
267 TRI_2021-09-07	0.95
268 TRI_2018-11-22	0.94
269 TRI_2020-12-11	0.94
270 TRI_2021-02-03	0.92
271 TRI_2018-01-25	0.89
272 TRI_2021-09-06	0.87
273 TRI_2017-12-10	0.83
274 TRI_2020-04-25	0.80
275 TRI_2017-05-06	0.75
276 TRI_2017-10-31	0.75
277 TRI_2017-11-22	0.75
278 TRI_2018-09-10	0.73
279 TRI_2020-05-12	0.73
280 TRI_2018-04-06	0.72
281 TRI_2018-05-11	0.71
282 TRI_2018-09-26	0.71
283 TRI_2020-02-16	0.70
284 TRI_2021-02-20	0.68
285 TRI_2018-11-23	0.66
286 TRI_2020-10-31	0.66
287 TRI_2018-10-27	0.64
288 TRI_2018-10-29	0.62
289 TRI_2017-02-05	0.60
290 TRI_2020-04-10	0.60
291 TRI_2018-04-03	0.59
292 TRI_2021-02-25	0.58
293 TRI_2017-07-09	0.56
294 TRI_2017-11-03	0.56
295 TRI_2018-08-05	0.56
296 TRI_2020-09-16	0.56
297 TRI_2018-05-24	0.55
298 TRI_2018-10-06	0.55
299 TRI_2018-09-15	0.54
300 TRI_2020-04-16	0.53
301 TRI_2021-06-26	0.53
302 TRI_2018-05-30	0.52
303 TRI_2020-04-07	0.51
304 TRI_2018-10-26	0.50
305 TRI_2021-08-31	0.50
306 TRI_2021-02-08	0.49
307 TRI_2021-12-27	0.49
308 TRI_2020-04-12	0.47
309 TRI_2020-05-13	0.46
310 TRI_2020-04-14	0.45
311 TRI_2017-03-02	0.43
312 TRI_2017-03-26	0.43
313 TRI_2017-04-29	0.43
314 TRI_2018-08-09	0.43
315 TRI_2020-01-17	0.43
316 TRI_2020-01-02	0.39
317 TRI_2018-01-23	0.35
318 TRI_2018-06-29	0.35
319 TRI_2021-05-30	0.34
320 TRI_2017-06-08	0.33
321 TRI_2018-12-18	0.33
322 TRI_2021-09-03	0.33
323 TRI_2018-02-06	0.30
324 TRI_2021-10-24	0.30
325 TRI_2017-05-05	0.28
326 TRI_2017-12-06	0.28
327 TRI_2018-12-13	0.28
328 TRI_2020-07-29	0.27
329 TRI_2020-08-15	0.26
330 TRI_2021-04-26	0.26
331 TRI_2017-05-04	0.25
332 TRI_2020-01-08	0.23
333 TRI_2018-04-20	0.22
334 TRI_2017-07-04	0.20
335 TRI_2020-01-27	0.20
336 TRI_2017-12-07	0.18
337 TRI_2018-06-30	0.17
338 TRI_2018-03-03	0.16
339 TRI_2021-04-24	0.16
340 TRI_2020-05-11	0.14
341 TRI_2018-01-05	0.11
342 TRI_2021-12-25	0.10
343 TRI_2017-01-01	0.00
344 TRI_2017-01-02	0.00
345 TRI_2017-01-03	0.00
346 TRI_2017-01-04	0.00

Rank, NPP code, date

mSv

1 TRI_2021-12-23

31.49

23.54

20.86

19.16

18.30

17.28

17.13

16.12

16.06

15.69

15.61

14.95

14.22

14.07

13.63

13.41

12.75

12.65

11.97

11.94

11.89

11.65

11.57

11.15

10.84

10.44

10.38

9.97

9.79

9.69

9.54

9.11

9.08

8.77

8.70

8.67

8.64

8.62

8.59

8.55

8.42

8.30

8.29

8.24

8.13

8.12

8.04

8.02

7.98

7.88

7.75

7.72

7.66

7.59

7.43

7.09

7.01

6.88

6.76

6.73

6.71

6.61

6.38

6.35

6.32

6.26

6.22

6.11

6.04

6.01

5.93

5.89

5.86

5.84

5.83

5.81

5.79

5.68

5.45

5.39

5.36

5.21

5.20

5.17

5.16

5.13

5.07

5.05

5.05

4.99

4.83

4.68

4.68

4.65

4.51

4.48

4.45

4.42

4.41

4.35

4.30

4.25

4.20

4.18

4.17

4.15

4.12

4.12

4.09

4.04

4.03

4.03

4.03

3.92

3.92

3.89

3.89

3.78

3.73

3.72

3.71

3.63

3.59

3.56

3.56

3.55

3.44

3.39

3.33

3.31

3.26

3.23

3.19

3.18

3.18

3.17

3.12

3.08

3.07

3.01

3.00

2.99

2.97

2.94

2.88

2.86

2.84

2.84

2.83

2.82

2.80

2.79

2.79

2.78

2.78

2.73

2.72

2.71

2.71

2.69

2.61

2.59

2.57

2.56

2.49

2.46

2.44

2.43

2.42

2.41

2.40

2.36

2.36

2.35

2.33

2.33

2.31

2.30

2.24

2.23

2.21

2.20

2.17

2.14

2.13

2.12

2.11

2.10

2.06

2.03

2.02

2.00

1.97

1.96

1.96

1.94

1.94

1.93

1.91

1.89

1.87

1.84

1.84

1.82

1.82

1.82

1.77

1.77

1.73

1.73

1.73

1.70

1.69

1.66

1.65

1.64

1.62

1.61

1.60

1.58

1.57

1.57

1.56

1.55

1.49

1.49

1.47

1.47

1.46

1.45

1.45

1.44

1.44

1.37

1.34

1.28

1.28

1.27

1.27

1.25

1.24

1.24

1.15

1.12

1.11

1.09

1.08

1.07

1.06

1.06

1.06

1.05

1.05

1.04

1.03

1.02

1.02

1.01

1.01

1.01

1.00

1.00

1.00

0.99

0.98

0.97

0.95

0.94

0.94

0.92

0.89

0.87

0.83

0.80

0.75

0.75

0.75

0.73

0.73

0.72

0.71

0.71

0.70

0.68

0.66

0.66

0.64

0.62

0.60

0.60

0.59

0.58

0.56

0.56

0.56

0.56

0.55

0.55

0.54

0.53

0.53

0.52

0.51

0.50

0.50

0.49

0.49

0.47

0.46

0.45

0.43

0.43

0.43

0.43

0.43

0.39

0.35

0.35

0.34

0.33

0.33

0.33

0.30

0.30

0.28

0.28

0.28

0.27

0.26

0.26

0.25

0.23

0.22

0.20

0.20

0.18

0.17

0.16

0.16

0.14

0.11

0.10

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 :

Dijon (333 km) FRA

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)