Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2020-04-18	36.91
2 TRI_2020-08-11	34.40
3 TRI_2018-06-29	25.70
4 TRI_2017-02-15	23.76
5 TRI_2020-04-19	22.09
6 TRI_2018-01-09	21.53
7 TRI_2020-01-25	20.74
8 TRI_2021-03-01	20.60
9 TRI_2018-04-11	20.18
10 TRI_2018-12-13	18.18
11 TRI_2018-04-12	18.13
12 TRI_2020-04-13	17.98
13 TRI_2018-11-15	17.77
14 TRI_2017-06-13	17.08
15 TRI_2020-09-20	16.75
16 TRI_2018-11-21	15.91
17 TRI_2017-11-01	15.75
18 TRI_2018-04-14	14.56
19 TRI_2017-05-31	14.25
20 TRI_2018-04-19	13.70
21 TRI_2018-03-04	13.65
22 TRI_2017-06-01	13.14
23 TRI_2018-09-16	13.09
24 TRI_2020-05-11	13.06
25 TRI_2017-05-10	13.00
26 TRI_2021-10-24	12.74
27 TRI_2018-05-27	12.43
28 TRI_2018-11-23	12.37
29 TRI_2020-12-16	11.88
30 TRI_2017-08-27	11.39
31 TRI_2020-04-08	11.37
32 TRI_2018-09-28	11.24
33 TRI_2020-09-04	11.24
34 TRI_2017-03-26	11.09
35 TRI_2018-01-14	10.88
36 TRI_2018-04-21	10.85
37 TRI_2018-03-24	10.80
38 TRI_2020-01-24	10.80
39 TRI_2018-05-07	10.78
40 TRI_2021-04-26	10.33
41 TRI_2021-10-31	10.12
42 TRI_2020-11-12	10.11
43 TRI_2018-10-10	10.02
44 TRI_2018-10-11	9.78
45 TRI_2021-10-28	9.73
46 TRI_2020-11-06	9.35
47 TRI_2021-06-21	9.23
48 TRI_2020-03-15	9.08
49 TRI_2021-09-03	8.83
50 TRI_2017-08-22	8.65
51 TRI_2020-11-26	8.60
52 TRI_2020-07-30	8.47
53 TRI_2017-01-02	7.93
54 TRI_2021-09-05	7.85
55 TRI_2021-02-04	7.82
56 TRI_2020-11-27	7.41
57 TRI_2020-01-16	7.21
58 TRI_2021-12-17	7.16
59 TRI_2020-05-31	6.89
60 TRI_2018-01-24	6.87
61 TRI_2020-05-04	6.80
62 TRI_2020-04-15	6.62
63 TRI_2017-03-30	6.58
64 TRI_2020-03-20	6.54
65 TRI_2017-08-14	6.46
66 TRI_2020-04-10	6.40
67 TRI_2021-09-24	6.32
68 TRI_2018-06-30	6.22
69 TRI_2018-08-12	6.18
70 TRI_2018-02-16	6.16
71 TRI_2018-04-06	6.16
72 TRI_2018-11-17	6.16
73 TRI_2020-04-09	6.00
74 TRI_2018-02-06	5.71
75 TRI_2020-08-15	5.55
76 TRI_2018-06-05	5.53
77 TRI_2021-12-24	5.48
78 TRI_2021-08-14	5.39
79 TRI_2020-04-23	5.32
80 TRI_2017-02-14	5.23
81 TRI_2020-02-15	5.16
82 TRI_2017-10-13	5.14
83 TRI_2021-07-23	5.10
84 TRI_2018-10-05	5.04
85 TRI_2020-03-23	4.94
86 TRI_2017-07-07	4.87
87 TRI_2018-11-20	4.81
88 TRI_2020-03-21	4.80
89 TRI_2021-01-19	4.79
90 TRI_2021-11-19	4.75
91 TRI_2020-10-19	4.72
92 TRI_2018-04-27	4.70
93 TRI_2018-11-22	4.67
94 TRI_2018-06-07	4.64
95 TRI_2021-12-22	4.62
96 TRI_2018-09-10	4.54
97 TRI_2018-09-09	4.53
98 TRI_2017-08-29	4.50
99 TRI_2017-07-04	4.45
100 TRI_2020-02-06	4.40
101 TRI_2017-06-26	4.37
102 TRI_2018-09-25	4.35
103 TRI_2018-04-20	4.31
104 TRI_2018-05-21	4.30
105 TRI_2018-06-09	4.30
106 TRI_2020-12-17	4.21
107 TRI_2021-04-29	4.20
108 TRI_2021-04-22	4.14
109 TRI_2017-09-22	4.13
110 TRI_2017-01-28	4.09
111 TRI_2017-09-27	4.02
112 TRI_2018-05-30	4.01
113 TRI_2018-11-14	3.95
114 TRI_2018-11-16	3.85
115 TRI_2021-10-27	3.83
116 TRI_2021-10-17	3.81
117 TRI_2018-06-02	3.73
118 TRI_2018-08-28	3.68
119 TRI_2020-09-17	3.57
120 TRI_2017-08-23	3.40
121 TRI_2018-02-28	3.34
122 TRI_2018-09-04	3.26
123 TRI_2018-07-20	3.25
124 TRI_2018-08-06	3.24
125 TRI_2021-09-06	3.24
126 TRI_2017-09-26	3.21
127 TRI_2018-11-19	3.16
128 TRI_2021-03-26	3.15
129 TRI_2020-06-01	3.13
130 TRI_2017-01-03	3.07
131 TRI_2018-05-24	3.04
132 TRI_2021-02-12	3.00
133 TRI_2017-05-05	2.84
134 TRI_2018-01-13	2.79
135 TRI_2018-10-04	2.79
136 TRI_2018-11-08	2.79
137 TRI_2018-04-09	2.77
138 TRI_2018-07-04	2.77
139 TRI_2020-04-04	2.75
140 TRI_2020-07-29	2.70
141 TRI_2018-09-05	2.67
142 TRI_2021-10-18	2.64
143 TRI_2021-06-27	2.60
144 TRI_2017-04-08	2.51
145 TRI_2020-09-15	2.50
146 TRI_2020-03-25	2.49
147 TRI_2020-01-23	2.48
148 TRI_2017-08-28	2.43
149 TRI_2018-06-01	2.38
150 TRI_2021-05-30	2.38
151 TRI_2018-12-18	2.29
152 TRI_2020-01-26	2.29
153 TRI_2020-11-08	2.25
154 TRI_2017-05-16	2.24
155 TRI_2017-07-21	2.22
156 TRI_2021-04-25	2.22
157 TRI_2021-09-23	2.18
158 TRI_2017-04-24	2.16
159 TRI_2020-03-24	2.13
160 TRI_2021-07-04	2.06
161 TRI_2020-04-24	2.00
162 TRI_2018-09-27	1.96
163 TRI_2020-05-29	1.89
164 TRI_2020-08-07	1.86
165 TRI_2020-09-14	1.83
166 TRI_2017-06-18	1.82
167 TRI_2017-03-24	1.81
168 TRI_2017-06-08	1.81
169 TRI_2021-09-02	1.80
170 TRI_2021-07-22	1.77
171 TRI_2020-08-10	1.76
172 TRI_2021-04-21	1.74
173 TRI_2017-06-21	1.72
174 TRI_2017-05-30	1.71
175 TRI_2020-01-12	1.68
176 TRI_2021-04-08	1.66
177 TRI_2018-06-04	1.59
178 TRI_2018-11-01	1.59
179 TRI_2020-08-08	1.52
180 TRI_2018-09-11	1.51
181 TRI_2017-05-21	1.46
182 TRI_2020-01-13	1.43
183 TRI_2017-07-29	1.42
184 TRI_2020-11-23	1.41
185 TRI_2018-11-13	1.37
186 TRI_2021-08-12	1.36
187 TRI_2018-11-05	1.34
188 TRI_2018-10-16	1.32
189 TRI_2021-04-20	1.32
190 TRI_2020-05-07	1.31
191 TRI_2020-06-23	1.30
192 TRI_2021-10-01	1.30
193 TRI_2021-12-21	1.30
194 TRI_2018-03-08	1.29
195 TRI_2018-05-20	1.29
196 TRI_2018-10-27	1.25
197 TRI_2020-08-09	1.25
198 TRI_2018-01-08	1.21
199 TRI_2018-05-29	1.18
200 TRI_2020-03-18	1.17
201 TRI_2017-03-02	1.15
202 TRI_2017-03-15	1.11
203 TRI_2020-03-19	1.03
204 TRI_2018-02-05	1.01
205 TRI_2018-04-28	0.99
206 TRI_2020-05-13	0.99
207 TRI_2017-04-29	0.96
208 TRI_2018-08-05	0.95
209 TRI_2017-10-31	0.94
210 TRI_2020-02-14	0.94
211 TRI_2018-01-10	0.91
212 TRI_2018-05-01	0.91
213 TRI_2018-05-25	0.91
214 TRI_2017-02-13	0.88
215 TRI_2018-08-21	0.88
216 TRI_2017-11-02	0.87
217 TRI_2020-10-18	0.84
218 TRI_2018-03-14	0.82
219 TRI_2018-10-28	0.82
220 TRI_2020-09-13	0.82
221 TRI_2018-11-03	0.78
222 TRI_2018-11-25	0.78
223 TRI_2018-09-26	0.76
224 TRI_2018-05-11	0.71
225 TRI_2020-01-06	0.70
226 TRI_2020-12-07	0.69
227 TRI_2020-04-14	0.68
228 TRI_2021-02-05	0.68
229 TRI_2021-03-27	0.68
230 TRI_2020-07-31	0.67
231 TRI_2021-05-08	0.65
232 TRI_2017-05-09	0.64
233 TRI_2018-04-18	0.61
234 TRI_2018-06-11	0.61
235 TRI_2020-11-22	0.59
236 TRI_2021-05-07	0.59
237 TRI_2021-11-14	0.59
238 TRI_2017-02-10	0.57
239 TRI_2018-11-06	0.57
240 TRI_2018-08-16	0.56
241 TRI_2020-03-17	0.53
242 TRI_2018-03-03	0.49
243 TRI_2018-10-06	0.46
244 TRI_2017-07-17	0.45
245 TRI_2017-09-25	0.45
246 TRI_2018-05-06	0.44
247 TRI_2020-06-24	0.44
248 TRI_2018-03-05	0.43
249 TRI_2018-11-24	0.43
250 TRI_2018-01-23	0.41
251 TRI_2020-04-02	0.41
252 TRI_2020-05-10	0.41
253 TRI_2017-01-25	0.40
254 TRI_2018-02-27	0.40
255 TRI_2018-04-05	0.40
256 TRI_2018-07-03	0.40
257 TRI_2021-03-31	0.40
258 TRI_2020-04-22	0.38
259 TRI_2020-04-25	0.37
260 TRI_2018-05-31	0.36
261 TRI_2017-06-20	0.35
262 TRI_2020-07-19	0.35
263 TRI_2018-05-26	0.33
264 TRI_2017-11-03	0.31
265 TRI_2018-10-07	0.31
266 TRI_2018-12-26	0.31
267 TRI_2021-03-06	0.30
268 TRI_2021-04-01	0.30
269 TRI_2017-04-01	0.29
270 TRI_2018-04-26	0.29
271 TRI_2017-04-07	0.28
272 TRI_2020-06-22	0.28
273 TRI_2021-02-14	0.28
274 TRI_2021-06-14	0.28
275 TRI_2017-05-04	0.27
276 TRI_2017-12-06	0.27
277 TRI_2017-05-03	0.26
278 TRI_2017-03-22	0.23
279 TRI_2017-07-03	0.23
280 TRI_2018-06-06	0.23
281 TRI_2020-09-16	0.23
282 TRI_2021-07-21	0.23
283 TRI_2020-05-12	0.16
284 TRI_2021-06-26	0.15
285 TRI_2021-10-30	0.15
286 TRI_2018-11-04	0.14
287 TRI_2020-09-08	0.14
288 TRI_2017-08-07	0.13
289 TRI_2017-07-20	0.12
290 TRI_2017-10-25	0.10
291 TRI_2020-02-07	0.05
292 TRI_2017-01-01	0.00
293 TRI_2017-01-04	0.00
294 TRI_2017-01-05	0.00
295 TRI_2017-01-06	0.00

Rank, NPP code, date

mSv

1 TRI_2020-04-18

36.91

34.40

25.70

23.76

22.09

21.53

20.74

20.60

20.18

18.18

18.13

17.98

17.77

17.08

16.75

15.91

15.75

14.56

14.25

13.70

13.65

13.14

13.09

13.06

13.00

12.74

12.43

12.37

11.88

11.39

11.37

11.24

11.24

11.09

10.88

10.85

10.80

10.80

10.78

10.33

10.12

10.11

10.02

9.78

9.73

9.35

9.23

9.08

8.83

8.65

8.60

8.47

7.93

7.85

7.82

7.41

7.21

7.16

6.89

6.87

6.80

6.62

6.58

6.54

6.46

6.40

6.32

6.22

6.18

6.16

6.16

6.16

6.00

5.71

5.55

5.53

5.48

5.39

5.32

5.23

5.16

5.14

5.10

5.04

4.94

4.87

4.81

4.80

4.79

4.75

4.72

4.70

4.67

4.64

4.62

4.54

4.53

4.50

4.45

4.40

4.37

4.35

4.31

4.30

4.30

4.21

4.20

4.14

4.13

4.09

4.02

4.01

3.95

3.85

3.83

3.81

3.73

3.68

3.57

3.40

3.34

3.26

3.25

3.24

3.24

3.21

3.16

3.15

3.13

3.07

3.04

3.00

2.84

2.79

2.79

2.79

2.77

2.77

2.75

2.70

2.67

2.64

2.60

2.51

2.50

2.49

2.48

2.43

2.38

2.38

2.29

2.29

2.25

2.24

2.22

2.22

2.18

2.16

2.13

2.06

2.00

1.96

1.89

1.86

1.83

1.82

1.81

1.81

1.80

1.77

1.76

1.74

1.72

1.71

1.68

1.66

1.59

1.59

1.52

1.51

1.46

1.43

1.42

1.41

1.37

1.36

1.34

1.32

1.32

1.31

1.30

1.30

1.30

1.29

1.29

1.25

1.25

1.21

1.18

1.17

1.15

1.11

1.03

1.01

0.99

0.99

0.96

0.95

0.94

0.94

0.91

0.91

0.91

0.88

0.88

0.87

0.84

0.82

0.82

0.82

0.78

0.78

0.76

0.71

0.70

0.69

0.68

0.68

0.68

0.67

0.65

0.64

0.61

0.61

0.59

0.59

0.59

0.57

0.57

0.56

0.53

0.49

0.46

0.45

0.45

0.44

0.44

0.43

0.43

0.41

0.41

0.41

0.40

0.40

0.40

0.40

0.40

0.38

0.37

0.36

0.35

0.35

0.33

0.31

0.31

0.31

0.30

0.30

0.29

0.29

0.28

0.28

0.28

0.28

0.27

0.27

0.26

0.23

0.23

0.23

0.23

0.23

0.16

0.15

0.15

0.14

0.14

0.13

0.12

0.10

0.05

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 :

Le Puy (104 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)