Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2017-06-09	47.07
2 TRI_2020-12-06	32.81
3 TRI_2017-05-04	16.44
4 TRI_2017-01-02	16.11
5 TRI_2018-09-18	15.63
6 TRI_2018-01-05	15.49
7 TRI_2018-09-12	15.47
8 TRI_2017-02-26	14.49
9 TRI_2020-04-12	13.90
10 TRI_2017-06-08	12.60
11 TRI_2017-11-02	11.78
12 TRI_2018-07-02	10.87
13 TRI_2017-05-22	10.21
14 TRI_2020-06-03	9.67
15 TRI_2017-08-08	9.55
16 TRI_2017-09-09	8.76
17 TRI_2020-11-02	8.73
18 TRI_2017-07-30	8.70
19 TRI_2018-04-22	8.16
20 TRI_2020-10-01	8.16
21 TRI_2017-08-15	7.16
22 TRI_2021-05-08	7.09
23 TRI_2017-04-09	7.06
24 TRI_2020-06-13	7.04
25 TRI_2020-06-11	6.96
26 TRI_2020-12-20	6.82
27 TRI_2021-05-04	6.62
28 TRI_2020-04-01	6.19
29 TRI_2020-01-06	6.07
30 TRI_2018-05-12	6.04
31 TRI_2017-08-03	5.94
32 TRI_2020-12-29	5.88
33 TRI_2017-06-02	5.83
34 TRI_2017-05-26	5.71
35 TRI_2017-06-19	5.67
36 TRI_2020-08-19	5.66
37 TRI_2017-02-15	5.61
38 TRI_2018-11-30	5.50
39 TRI_2021-05-11	5.49
40 TRI_2017-10-21	5.32
41 TRI_2017-06-30	4.91
42 TRI_2020-08-21	4.89
43 TRI_2020-06-27	4.83
44 TRI_2017-01-31	4.80
45 TRI_2017-11-28	4.78
46 TRI_2020-05-09	4.78
47 TRI_2018-11-13	4.77
48 TRI_2018-04-08	4.67
49 TRI_2017-03-05	4.66
50 TRI_2018-05-23	4.66
51 TRI_2017-02-23	4.64
52 TRI_2018-08-06	4.59
53 TRI_2018-12-02	4.59
54 TRI_2021-05-10	4.54
55 TRI_2020-11-01	4.52
56 TRI_2017-05-27	4.51
57 TRI_2021-06-16	4.50
58 TRI_2020-10-05	4.45
59 TRI_2020-04-11	4.42
60 TRI_2018-02-17	4.17
61 TRI_2020-04-30	4.15
62 TRI_2018-05-31	4.14
63 TRI_2021-06-03	4.11
64 TRI_2017-10-20	3.96
65 TRI_2020-08-12	3.92
66 TRI_2020-02-01	3.86
67 TRI_2020-08-10	3.76
68 TRI_2017-02-05	3.75
69 TRI_2021-09-15	3.68
70 TRI_2018-04-21	3.67
71 TRI_2018-07-04	3.63
72 TRI_2017-11-24	3.61
73 TRI_2020-07-21	3.60
74 TRI_2020-12-23	3.57
75 TRI_2020-07-27	3.48
76 TRI_2017-06-29	3.46
77 TRI_2020-05-04	3.37
78 TRI_2021-04-11	3.28
79 TRI_2018-12-21	3.26
80 TRI_2017-09-14	3.25
81 TRI_2020-07-01	3.24
82 TRI_2021-06-17	3.15
83 TRI_2021-09-13	3.14
84 TRI_2017-10-11	3.12
85 TRI_2018-06-04	3.07
86 TRI_2017-07-10	3.06
87 TRI_2020-05-05	3.01
88 TRI_2020-06-26	3.01
89 TRI_2021-06-18	3.00
90 TRI_2020-08-13	2.92
91 TRI_2020-09-14	2.86
92 TRI_2017-04-25	2.81
93 TRI_2020-03-16	2.80
94 TRI_2020-12-31	2.77
95 TRI_2021-02-08	2.75
96 TRI_2021-12-04	2.75
97 TRI_2018-01-16	2.72
98 TRI_2021-03-03	2.65
99 TRI_2017-09-27	2.63
100 TRI_2021-07-06	2.61
101 TRI_2020-08-16	2.60
102 TRI_2020-09-23	2.56
103 TRI_2021-07-12	2.55
104 TRI_2021-12-24	2.50
105 TRI_2017-02-01	2.47
106 TRI_2017-02-28	2.43
107 TRI_2018-03-04	2.43
108 TRI_2020-01-28	2.38
109 TRI_2017-05-28	2.36
110 TRI_2017-08-23	2.33
111 TRI_2020-07-31	2.32
112 TRI_2021-10-01	2.29
113 TRI_2017-01-30	2.28
114 TRI_2017-04-24	2.28
115 TRI_2018-01-31	2.20
116 TRI_2020-02-17	2.20
117 TRI_2018-04-27	2.17
118 TRI_2017-07-21	2.13
119 TRI_2017-12-26	2.12
120 TRI_2020-05-01	2.12
121 TRI_2017-04-01	2.11
122 TRI_2017-09-29	2.04
123 TRI_2020-11-18	2.04
124 TRI_2021-06-04	2.04
125 TRI_2021-06-21	2.01
126 TRI_2021-08-07	1.99
127 TRI_2018-10-06	1.98
128 TRI_2020-09-22	1.95
129 TRI_2021-12-27	1.95
130 TRI_2020-09-21	1.94
131 TRI_2020-10-06	1.91
132 TRI_2021-12-25	1.91
133 TRI_2018-04-20	1.89
134 TRI_2021-05-21	1.89
135 TRI_2020-10-23	1.86
136 TRI_2020-01-13	1.85
137 TRI_2021-05-24	1.85
138 TRI_2021-12-28	1.83
139 TRI_2020-03-01	1.79
140 TRI_2020-04-16	1.79
141 TRI_2018-07-01	1.77
142 TRI_2021-04-08	1.77
143 TRI_2018-07-27	1.74
144 TRI_2020-04-17	1.71
145 TRI_2017-05-06	1.70
146 TRI_2021-08-14	1.70
147 TRI_2020-02-13	1.67
148 TRI_2018-12-19	1.66
149 TRI_2021-03-11	1.66
150 TRI_2017-05-02	1.65
151 TRI_2020-02-10	1.64
152 TRI_2021-02-25	1.64
153 TRI_2018-09-17	1.62
154 TRI_2020-07-20	1.62
155 TRI_2020-10-31	1.61
156 TRI_2020-01-02	1.60
157 TRI_2021-05-31	1.60
158 TRI_2017-04-26	1.59
159 TRI_2020-12-21	1.59
160 TRI_2021-03-30	1.59
161 TRI_2018-06-10	1.58
162 TRI_2020-02-08	1.50
163 TRI_2020-10-04	1.50
164 TRI_2021-05-15	1.49
165 TRI_2018-06-06	1.47
166 TRI_2018-07-26	1.46
167 TRI_2020-05-08	1.45
168 TRI_2018-06-05	1.44
169 TRI_2020-09-30	1.44
170 TRI_2018-08-28	1.42
171 TRI_2018-05-11	1.38
172 TRI_2018-12-13	1.37
173 TRI_2017-06-28	1.36
174 TRI_2017-12-14	1.35
175 TRI_2017-07-17	1.31
176 TRI_2017-08-29	1.31
177 TRI_2020-04-06	1.28
178 TRI_2020-08-09	1.27
179 TRI_2018-05-29	1.24
180 TRI_2017-12-07	1.22
181 TRI_2021-02-15	1.22
182 TRI_2017-12-31	1.20
183 TRI_2017-09-26	1.19
184 TRI_2018-09-30	1.19
185 TRI_2017-04-08	1.18
186 TRI_2017-08-02	1.17
187 TRI_2018-03-03	1.17
188 TRI_2017-12-15	1.16
189 TRI_2018-02-27	1.16
190 TRI_2020-05-11	1.16
191 TRI_2020-06-24	1.14
192 TRI_2021-07-27	1.14
193 TRI_2017-05-21	1.13
194 TRI_2018-06-09	1.05
195 TRI_2021-02-14	1.05
196 TRI_2017-12-30	1.03
197 TRI_2018-06-11	1.03
198 TRI_2021-11-27	1.03
199 TRI_2017-04-23	1.02
200 TRI_2021-09-09	1.00
201 TRI_2021-12-22	0.96
202 TRI_2017-06-03	0.95
203 TRI_2021-02-01	0.93
204 TRI_2021-07-24	0.93
205 TRI_2017-08-07	0.92
206 TRI_2017-12-10	0.92
207 TRI_2017-02-03	0.91
208 TRI_2020-05-22	0.90
209 TRI_2018-06-30	0.87
210 TRI_2017-03-27	0.86
211 TRI_2020-02-16	0.86
212 TRI_2017-07-29	0.85
213 TRI_2017-09-28	0.84
214 TRI_2017-03-22	0.83
215 TRI_2021-03-31	0.82
216 TRI_2018-03-05	0.76
217 TRI_2020-07-30	0.76
218 TRI_2021-02-09	0.76
219 TRI_2021-08-13	0.76
220 TRI_2018-03-02	0.74
221 TRI_2018-05-25	0.73
222 TRI_2017-06-18	0.72
223 TRI_2018-09-10	0.69
224 TRI_2017-02-25	0.68
225 TRI_2018-10-04	0.68
226 TRI_2020-09-20	0.68
227 TRI_2021-04-27	0.67
228 TRI_2020-05-10	0.66
229 TRI_2021-10-18	0.66
230 TRI_2021-11-02	0.66
231 TRI_2017-07-07	0.65
232 TRI_2017-08-13	0.65
233 TRI_2018-08-29	0.65
234 TRI_2020-02-15	0.64
235 TRI_2021-01-22	0.64
236 TRI_2020-06-25	0.63
237 TRI_2018-09-16	0.61
238 TRI_2021-03-06	0.61
239 TRI_2017-06-21	0.60
240 TRI_2021-07-29	0.60
241 TRI_2017-11-23	0.59
242 TRI_2021-05-16	0.58
243 TRI_2017-05-16	0.57
244 TRI_2020-06-01	0.56
245 TRI_2021-12-21	0.56
246 TRI_2018-07-14	0.54
247 TRI_2021-10-21	0.54
248 TRI_2018-02-16	0.53
249 TRI_2018-04-12	0.53
250 TRI_2020-08-28	0.53
251 TRI_2021-04-25	0.51
252 TRI_2017-08-28	0.50
253 TRI_2020-01-12	0.50
254 TRI_2020-07-19	0.47
255 TRI_2021-02-05	0.47
256 TRI_2021-03-26	0.47
257 TRI_2018-08-12	0.46
258 TRI_2017-05-30	0.45
259 TRI_2021-01-19	0.45
260 TRI_2020-01-08	0.43
261 TRI_2021-06-20	0.43
262 TRI_2018-01-15	0.42
263 TRI_2018-03-30	0.41
264 TRI_2020-04-10	0.41
265 TRI_2020-05-13	0.41
266 TRI_2021-08-12	0.40
267 TRI_2020-12-28	0.38
268 TRI_2017-03-06	0.37
269 TRI_2017-03-31	0.35
270 TRI_2018-10-05	0.35
271 TRI_2017-07-20	0.34
272 TRI_2018-01-18	0.33
273 TRI_2020-02-27	0.33
274 TRI_2021-06-01	0.33
275 TRI_2017-01-01	0.32
276 TRI_2017-08-22	0.32
277 TRI_2021-10-04	0.31
278 TRI_2018-05-30	0.30
279 TRI_2018-09-20	0.30
280 TRI_2020-07-28	0.30
281 TRI_2017-12-12	0.29
282 TRI_2018-10-30	0.29
283 TRI_2017-05-09	0.28
284 TRI_2017-08-26	0.28
285 TRI_2017-12-06	0.28
286 TRI_2017-12-08	0.28
287 TRI_2018-10-28	0.28
288 TRI_2017-07-04	0.27
289 TRI_2018-04-30	0.26
290 TRI_2017-05-29	0.25
291 TRI_2018-06-03	0.24
292 TRI_2017-03-15	0.22
293 TRI_2017-09-30	0.22
294 TRI_2020-04-27	0.22
295 TRI_2020-11-11	0.22
296 TRI_2021-09-26	0.22
297 TRI_2020-04-26	0.21
298 TRI_2020-05-12	0.21
299 TRI_2021-06-22	0.21
300 TRI_2017-06-13	0.18
301 TRI_2018-08-16	0.18
302 TRI_2020-07-29	0.18
303 TRI_2020-08-11	0.18
304 TRI_2020-09-04	0.18
305 TRI_2018-02-15	0.16
306 TRI_2020-06-02	0.16
307 TRI_2021-07-04	0.13
308 TRI_2021-04-24	0.12
309 TRI_2017-10-31	0.11
310 TRI_2017-03-16	0.10
311 TRI_2018-03-14	0.10
312 TRI_2018-06-08	0.10
313 TRI_2017-06-01	0.06
314 TRI_2017-01-03	0.00
315 TRI_2017-01-04	0.00
316 TRI_2017-01-05	0.00
317 TRI_2017-01-06	0.00

Rank, NPP code, date

mSv

1 TRI_2017-06-09

47.07

32.81

16.44

16.11

15.63

15.49

15.47

14.49

13.90

12.60

11.78

10.87

10.21

9.67

9.55

8.76

8.73

8.70

8.16

8.16

7.16

7.09

7.06

7.04

6.96

6.82

6.62

6.19

6.07

6.04

5.94

5.88

5.83

5.71

5.67

5.66

5.61

5.50

5.49

5.32

4.91

4.89

4.83

4.80

4.78

4.78

4.77

4.67

4.66

4.66

4.64

4.59

4.59

4.54

4.52

4.51

4.50

4.45

4.42

4.17

4.15

4.14

4.11

3.96

3.92

3.86

3.76

3.75

3.68

3.67

3.63

3.61

3.60

3.57

3.48

3.46

3.37

3.28

3.26

3.25

3.24

3.15

3.14

3.12

3.07

3.06

3.01

3.01

3.00

2.92

2.86

2.81

2.80

2.77

2.75

2.75

2.72

2.65

2.63

2.61

2.60

2.56

2.55

2.50

2.47

2.43

2.43

2.38

2.36

2.33

2.32

2.29

2.28

2.28

2.20

2.20

2.17

2.13

2.12

2.12

2.11

2.04

2.04

2.04

2.01

1.99

1.98

1.95

1.95

1.94

1.91

1.91

1.89

1.89

1.86

1.85

1.85

1.83

1.79

1.79

1.77

1.77

1.74

1.71

1.70

1.70

1.67

1.66

1.66

1.65

1.64

1.64

1.62

1.62

1.61

1.60

1.60

1.59

1.59

1.59

1.58

1.50

1.50

1.49

1.47

1.46

1.45

1.44

1.44

1.42

1.38

1.37

1.36

1.35

1.31

1.31

1.28

1.27

1.24

1.22

1.22

1.20

1.19

1.19

1.18

1.17

1.17

1.16

1.16

1.16

1.14

1.14

1.13

1.05

1.05

1.03

1.03

1.03

1.02

1.00

0.96

0.95

0.93

0.93

0.92

0.92

0.91

0.90

0.87

0.86

0.86

0.85

0.84

0.83

0.82

0.76

0.76

0.76

0.76

0.74

0.73

0.72

0.69

0.68

0.68

0.68

0.67

0.66

0.66

0.66

0.65

0.65

0.65

0.64

0.64

0.63

0.61

0.61

0.60

0.60

0.59

0.58

0.57

0.56

0.56

0.54

0.54

0.53

0.53

0.53

0.51

0.50

0.50

0.47

0.47

0.47

0.46

0.45

0.45

0.43

0.43

0.42

0.41

0.41

0.41

0.40

0.38

0.37

0.35

0.35

0.34

0.33

0.33

0.33

0.32

0.32

0.31

0.30

0.30

0.30

0.29

0.29

0.28

0.28

0.28

0.28

0.28

0.27

0.26

0.25

0.24

0.22

0.22

0.22

0.22

0.22

0.21

0.21

0.21

0.18

0.18

0.18

0.18

0.18

0.16

0.16

0.13

0.12

0.11

0.10

0.10

0.10

0.06

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 :

Bern (358 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)