Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2018-11-15	30.25
2 TRI_2017-06-13	27.89
3 TRI_2017-03-26	21.31
4 TRI_2017-08-22	14.53
5 TRI_2020-05-13	12.81
6 TRI_2020-11-12	12.68
7 TRI_2021-04-23	12.50
8 TRI_2020-03-22	11.87
9 TRI_2018-11-22	10.85
10 TRI_2021-09-03	10.77
11 TRI_2018-11-19	10.69
12 TRI_2017-01-03	10.41
13 TRI_2017-01-20	10.12
14 TRI_2018-08-28	10.11
15 TRI_2021-10-14	9.83
16 TRI_2018-01-08	9.44
17 TRI_2021-10-27	9.11
18 TRI_2021-10-24	9.04
19 TRI_2018-01-24	9.02
20 TRI_2021-07-22	8.92
21 TRI_2017-10-31	8.23
22 TRI_2018-02-05	7.87
23 TRI_2020-11-27	7.69
24 TRI_2018-11-14	7.66
25 TRI_2020-04-13	7.53
26 TRI_2021-12-22	7.48
27 TRI_2018-06-29	7.09
28 TRI_2020-02-06	6.99
29 TRI_2020-02-15	6.78
30 TRI_2021-11-25	6.77
31 TRI_2018-04-12	6.63
32 TRI_2018-12-26	6.61
33 TRI_2018-11-16	6.44
34 TRI_2021-10-17	6.42
35 TRI_2018-04-18	6.26
36 TRI_2020-03-18	5.98
37 TRI_2018-06-02	5.97
38 TRI_2018-09-10	5.95
39 TRI_2021-04-26	5.95
40 TRI_2020-01-23	5.87
41 TRI_2017-05-05	5.74
42 TRI_2020-04-07	5.72
43 TRI_2018-10-16	5.64
44 TRI_2018-12-18	5.62
45 TRI_2021-12-17	5.62
46 TRI_2018-10-09	5.58
47 TRI_2021-11-24	5.57
48 TRI_2017-09-26	5.49
49 TRI_2018-09-25	5.46
50 TRI_2020-01-24	5.35
51 TRI_2018-01-13	5.19
52 TRI_2018-11-18	5.19
53 TRI_2020-01-22	5.09
54 TRI_2020-05-27	4.97
55 TRI_2020-04-23	4.74
56 TRI_2020-03-23	4.64
57 TRI_2020-11-24	4.62
58 TRI_2017-11-01	4.61
59 TRI_2018-05-30	4.56
60 TRI_2021-09-23	4.56
61 TRI_2018-08-12	4.55
62 TRI_2020-08-15	4.38
63 TRI_2021-09-02	4.37
64 TRI_2020-04-09	4.20
65 TRI_2021-12-24	4.18
66 TRI_2020-05-04	4.11
67 TRI_2021-02-04	4.10
68 TRI_2018-05-28	4.08
69 TRI_2017-08-28	4.07
70 TRI_2020-11-28	3.88
71 TRI_2020-09-15	3.84
72 TRI_2017-05-16	3.77
73 TRI_2017-06-08	3.76
74 TRI_2020-04-04	3.75
75 TRI_2018-11-21	3.72
76 TRI_2017-04-29	3.69
77 TRI_2021-12-18	3.69
78 TRI_2018-11-08	3.65
79 TRI_2020-05-14	3.65
80 TRI_2018-10-17	3.56
81 TRI_2017-01-26	3.52
82 TRI_2020-07-29	3.47
83 TRI_2020-01-21	3.45
84 TRI_2020-10-19	3.32
85 TRI_2018-04-20	3.29
86 TRI_2017-02-15	3.28
87 TRI_2021-11-23	3.12
88 TRI_2020-05-07	3.08
89 TRI_2017-06-26	2.93
90 TRI_2018-05-20	2.92
91 TRI_2020-06-23	2.86
92 TRI_2017-07-04	2.85
93 TRI_2017-10-13	2.79
94 TRI_2017-03-25	2.77
95 TRI_2020-11-05	2.72
96 TRI_2020-05-29	2.71
97 TRI_2018-02-28	2.70
98 TRI_2021-09-01	2.68
99 TRI_2018-09-28	2.66
100 TRI_2018-09-16	2.64
101 TRI_2021-04-01	2.64
102 TRI_2021-02-28	2.58
103 TRI_2021-12-21	2.57
104 TRI_2017-06-18	2.52
105 TRI_2017-01-18	2.46
106 TRI_2017-01-19	2.46
107 TRI_2018-10-04	2.43
108 TRI_2020-05-28	2.30
109 TRI_2020-03-15	2.26
110 TRI_2018-06-07	2.23
111 TRI_2021-11-11	2.21
112 TRI_2018-06-01	2.13
113 TRI_2020-11-23	2.07
114 TRI_2018-04-09	2.01
115 TRI_2021-11-19	1.99
116 TRI_2020-01-05	1.94
117 TRI_2020-04-22	1.94
118 TRI_2021-07-23	1.89
119 TRI_2018-02-16	1.88
120 TRI_2021-04-22	1.88
121 TRI_2018-08-17	1.87
122 TRI_2021-03-26	1.85
123 TRI_2017-11-03	1.84
124 TRI_2021-01-19	1.80
125 TRI_2018-08-05	1.77
126 TRI_2021-07-19	1.75
127 TRI_2018-09-11	1.73
128 TRI_2021-03-06	1.73
129 TRI_2021-04-20	1.72
130 TRI_2020-04-21	1.71
131 TRI_2020-05-12	1.70
132 TRI_2017-01-25	1.69
133 TRI_2018-04-19	1.66
134 TRI_2020-08-08	1.66
135 TRI_2018-01-14	1.65
136 TRI_2020-09-13	1.65
137 TRI_2020-01-12	1.64
138 TRI_2018-12-30	1.55
139 TRI_2021-11-20	1.54
140 TRI_2020-11-22	1.51
141 TRI_2017-03-15	1.49
142 TRI_2020-09-16	1.49
143 TRI_2020-01-06	1.47
144 TRI_2017-04-21	1.46
145 TRI_2020-11-06	1.46
146 TRI_2017-02-17	1.45
147 TRI_2017-10-25	1.45
148 TRI_2018-11-20	1.44
149 TRI_2020-01-13	1.44
150 TRI_2020-07-30	1.44
151 TRI_2020-09-09	1.35
152 TRI_2021-03-31	1.34
153 TRI_2020-03-25	1.33
154 TRI_2021-01-09	1.33
155 TRI_2021-04-21	1.32
156 TRI_2020-08-06	1.28
157 TRI_2021-03-27	1.28
158 TRI_2017-05-09	1.27
159 TRI_2020-03-24	1.23
160 TRI_2018-12-13	1.15
161 TRI_2020-09-17	1.15
162 TRI_2020-09-03	1.12
163 TRI_2021-07-21	1.12
164 TRI_2020-03-17	1.07
165 TRI_2020-03-31	1.06
166 TRI_2017-05-24	1.02
167 TRI_2018-04-27	0.99
168 TRI_2017-04-01	0.98
169 TRI_2018-11-17	0.98
170 TRI_2020-03-21	0.97
171 TRI_2020-01-08	0.95
172 TRI_2021-06-14	0.92
173 TRI_2017-01-02	0.90
174 TRI_2020-02-14	0.90
175 TRI_2021-10-18	0.90
176 TRI_2021-07-04	0.87
177 TRI_2021-09-22	0.85
178 TRI_2020-01-20	0.82
179 TRI_2017-05-10	0.81
180 TRI_2018-01-07	0.81
181 TRI_2020-05-11	0.80
182 TRI_2017-01-21	0.79
183 TRI_2021-10-28	0.74
184 TRI_2017-12-06	0.72
185 TRI_2017-04-08	0.70
186 TRI_2020-03-29	0.70
187 TRI_2017-11-05	0.69
188 TRI_2018-04-11	0.66
189 TRI_2018-05-13	0.66
190 TRI_2020-09-08	0.64
191 TRI_2018-02-04	0.63
192 TRI_2021-05-30	0.63
193 TRI_2021-08-31	0.63
194 TRI_2021-12-20	0.63
195 TRI_2018-11-04	0.59
196 TRI_2020-04-14	0.59
197 TRI_2017-06-01	0.58
198 TRI_2017-03-30	0.57
199 TRI_2018-11-25	0.57
200 TRI_2020-07-19	0.57
201 TRI_2021-09-06	0.57
202 TRI_2017-09-22	0.54
203 TRI_2018-11-13	0.54
204 TRI_2018-04-05	0.52
205 TRI_2017-08-27	0.51
206 TRI_2020-11-26	0.50
207 TRI_2018-06-19	0.47
208 TRI_2021-06-15	0.45
209 TRI_2017-09-21	0.43
210 TRI_2018-03-04	0.41
211 TRI_2017-07-03	0.40
212 TRI_2021-03-28	0.40
213 TRI_2020-04-24	0.39
214 TRI_2020-12-17	0.39
215 TRI_2020-04-15	0.38
216 TRI_2021-02-14	0.38
217 TRI_2018-02-27	0.37
218 TRI_2018-06-20	0.37
219 TRI_2020-05-05	0.36
220 TRI_2017-05-04	0.35
221 TRI_2018-10-11	0.35
222 TRI_2018-07-12	0.34
223 TRI_2018-10-10	0.34
224 TRI_2021-12-16	0.31
225 TRI_2018-05-21	0.28
226 TRI_2020-12-12	0.28
227 TRI_2020-09-04	0.27
228 TRI_2017-08-21	0.25
229 TRI_2017-04-24	0.24
230 TRI_2021-03-01	0.24
231 TRI_2020-09-12	0.23
232 TRI_2020-03-13	0.21
233 TRI_2021-10-22	0.21
234 TRI_2021-06-26	0.18
235 TRI_2018-05-19	0.16
236 TRI_2017-04-07	0.15
237 TRI_2021-05-08	0.15
238 TRI_2017-07-16	0.14
239 TRI_2017-05-03	0.13
240 TRI_2018-10-28	0.13
241 TRI_2021-05-07	0.12
242 TRI_2021-02-26	0.05
243 TRI_2017-01-01	0.00
244 TRI_2017-01-04	0.00
245 TRI_2017-01-05	0.00
246 TRI_2017-01-06	0.00

Rank, NPP code, date

mSv

1 TRI_2018-11-15

30.25

27.89

21.31

14.53

12.81

12.68

12.50

11.87

10.85

10.77

10.69

10.41

10.12

10.11

9.83

9.44

9.11

9.04

9.02

8.92

8.23

7.87

7.69

7.66

7.53

7.48

7.09

6.99

6.78

6.77

6.63

6.61

6.44

6.42

6.26

5.98

5.97

5.95

5.95

5.87

5.74

5.72

5.64

5.62

5.62

5.58

5.57

5.49

5.46

5.35

5.19

5.19

5.09

4.97

4.74

4.64

4.62

4.61

4.56

4.56

4.55

4.38

4.37

4.20

4.18

4.11

4.10

4.08

4.07

3.88

3.84

3.77

3.76

3.75

3.72

3.69

3.69

3.65

3.65

3.56

3.52

3.47

3.45

3.32

3.29

3.28

3.12

3.08

2.93

2.92

2.86

2.85

2.79

2.77

2.72

2.71

2.70

2.68

2.66

2.64

2.64

2.58

2.57

2.52

2.46

2.46

2.43

2.30

2.26

2.23

2.21

2.13

2.07

2.01

1.99

1.94

1.94

1.89

1.88

1.88

1.87

1.85

1.84

1.80

1.77

1.75

1.73

1.73

1.72

1.71

1.70

1.69

1.66

1.66

1.65

1.65

1.64

1.55

1.54

1.51

1.49

1.49

1.47

1.46

1.46

1.45

1.45

1.44

1.44

1.44

1.35

1.34

1.33

1.33

1.32

1.28

1.28

1.27

1.23

1.15

1.15

1.12

1.12

1.07

1.06

1.02

0.99

0.98

0.98

0.97

0.95

0.92

0.90

0.90

0.90

0.87

0.85

0.82

0.81

0.81

0.80

0.79

0.74

0.72

0.70

0.70

0.69

0.66

0.66

0.64

0.63

0.63

0.63

0.63

0.59

0.59

0.58

0.57

0.57

0.57

0.57

0.54

0.54

0.52

0.51

0.50

0.47

0.45

0.43

0.41

0.40

0.40

0.39

0.39

0.38

0.38

0.37

0.37

0.36

0.35

0.35

0.34

0.34

0.31

0.28

0.28

0.27

0.25

0.24

0.24

0.23

0.21

0.21

0.18

0.16

0.15

0.15

0.14

0.13

0.13

0.12

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 :

Rodez (172 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)