Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2018-11-15	46.81
2 TRI_2018-09-05	37.04
3 TRI_2018-10-16	25.66
4 TRI_2017-03-26	25.47
5 TRI_2018-06-29	25.24
6 TRI_2018-04-12	20.10
7 TRI_2017-09-22	19.35
8 TRI_2018-04-19	18.55
9 TRI_2017-08-22	18.49
10 TRI_2018-09-25	18.02
11 TRI_2018-04-09	17.86
12 TRI_2018-04-20	17.75
13 TRI_2017-06-13	16.57
14 TRI_2018-11-22	16.17
15 TRI_2017-01-03	15.30
16 TRI_2018-04-28	15.28
17 TRI_2021-10-24	14.83
18 TRI_2018-02-16	14.17
19 TRI_2018-09-16	13.93
20 TRI_2021-04-26	13.87
21 TRI_2018-06-07	13.66
22 TRI_2018-12-13	13.50
23 TRI_2018-09-28	13.06
24 TRI_2018-01-08	12.59
25 TRI_2018-11-14	12.24
26 TRI_2018-11-16	11.24
27 TRI_2018-02-05	11.11
28 TRI_2018-01-24	10.84
29 TRI_2018-08-12	10.34
30 TRI_2021-09-03	10.23
31 TRI_2018-12-18	10.09
32 TRI_2018-11-20	9.19
33 TRI_2018-01-13	9.00
34 TRI_2018-02-28	8.80
35 TRI_2017-11-01	8.76
36 TRI_2018-03-04	8.53
37 TRI_2018-01-07	8.04
38 TRI_2018-11-21	7.94
39 TRI_2018-04-21	7.79
40 TRI_2017-10-31	6.95
41 TRI_2020-07-30	6.85
42 TRI_2018-09-09	6.62
43 TRI_2021-07-23	6.54
44 TRI_2018-09-04	6.51
45 TRI_2017-02-15	6.49
46 TRI_2018-05-21	6.44
47 TRI_2018-01-14	6.41
48 TRI_2017-09-26	6.40
49 TRI_2018-11-23	6.38
50 TRI_2020-04-07	6.30
51 TRI_2018-09-10	6.29
52 TRI_2020-04-13	6.27
53 TRI_2018-05-30	6.14
54 TRI_2018-11-08	5.74
55 TRI_2020-05-11	5.70
56 TRI_2021-03-01	5.66
57 TRI_2017-08-27	5.58
58 TRI_2018-11-19	5.44
59 TRI_2020-04-23	5.27
60 TRI_2017-08-28	5.22
61 TRI_2018-08-28	5.18
62 TRI_2020-04-09	4.89
63 TRI_2018-10-10	4.88
64 TRI_2018-06-02	4.55
65 TRI_2020-09-15	4.53
66 TRI_2020-09-04	4.50
67 TRI_2021-10-28	4.44
68 TRI_2021-03-26	4.41
69 TRI_2017-05-10	4.35
70 TRI_2021-08-12	4.34
71 TRI_2020-11-12	4.31
72 TRI_2020-05-29	4.29
73 TRI_2018-10-09	4.17
74 TRI_2020-05-04	4.04
75 TRI_2018-04-06	4.02
76 TRI_2021-05-30	3.98
77 TRI_2018-08-05	3.88
78 TRI_2020-04-19	3.80
79 TRI_2020-04-24	3.79
80 TRI_2020-11-28	3.74
81 TRI_2020-03-21	3.71
82 TRI_2018-10-11	3.65
83 TRI_2021-02-04	3.53
84 TRI_2018-04-27	3.49
85 TRI_2020-03-24	3.47
86 TRI_2018-03-24	3.45
87 TRI_2020-11-26	3.44
88 TRI_2018-05-28	3.42
89 TRI_2021-12-22	3.40
90 TRI_2020-11-27	3.39
91 TRI_2018-06-30	3.37
92 TRI_2017-06-08	3.36
93 TRI_2020-04-08	3.36
94 TRI_2020-03-23	3.32
95 TRI_2017-06-26	3.29
96 TRI_2021-12-17	3.28
97 TRI_2017-03-02	3.23
98 TRI_2018-04-18	3.09
99 TRI_2021-04-22	3.09
100 TRI_2021-04-23	3.09
101 TRI_2020-01-23	3.01
102 TRI_2020-11-06	3.01
103 TRI_2020-04-04	2.97
104 TRI_2020-04-22	2.96
105 TRI_2020-04-15	2.95
106 TRI_2017-10-13	2.91
107 TRI_2017-05-16	2.89
108 TRI_2021-10-17	2.87
109 TRI_2017-08-14	2.85
110 TRI_2020-05-28	2.79
111 TRI_2017-05-31	2.74
112 TRI_2017-07-04	2.71
113 TRI_2017-09-21	2.68
114 TRI_2021-04-21	2.66
115 TRI_2020-04-18	2.59
116 TRI_2018-06-01	2.56
117 TRI_2017-04-29	2.46
118 TRI_2017-09-27	2.46
119 TRI_2020-03-18	2.46
120 TRI_2020-02-06	2.43
121 TRI_2020-05-13	2.39
122 TRI_2020-10-19	2.34
123 TRI_2021-09-02	2.34
124 TRI_2020-01-24	2.33
125 TRI_2020-09-03	2.33
126 TRI_2020-02-15	2.27
127 TRI_2020-01-06	2.23
128 TRI_2018-10-04	2.19
129 TRI_2020-09-17	2.18
130 TRI_2020-03-30	2.15
131 TRI_2017-11-02	2.14
132 TRI_2021-01-19	2.14
133 TRI_2021-11-24	2.13
134 TRI_2020-03-15	2.09
135 TRI_2021-11-19	1.97
136 TRI_2021-04-20	1.94
137 TRI_2020-12-16	1.92
138 TRI_2017-07-29	1.87
139 TRI_2020-01-25	1.87
140 TRI_2017-08-07	1.80
141 TRI_2018-08-06	1.78
142 TRI_2020-04-10	1.74
143 TRI_2021-12-24	1.72
144 TRI_2021-10-27	1.71
145 TRI_2021-09-23	1.70
146 TRI_2017-05-05	1.68
147 TRI_2020-01-05	1.63
148 TRI_2018-10-05	1.56
149 TRI_2018-11-13	1.54
150 TRI_2021-04-25	1.54
151 TRI_2020-05-12	1.53
152 TRI_2018-01-10	1.52
153 TRI_2018-04-11	1.51
154 TRI_2021-09-06	1.50
155 TRI_2021-04-01	1.47
156 TRI_2018-06-04	1.45
157 TRI_2017-10-25	1.42
158 TRI_2020-07-29	1.40
159 TRI_2020-08-11	1.39
160 TRI_2020-01-16	1.38
161 TRI_2020-03-25	1.38
162 TRI_2021-09-24	1.37
163 TRI_2018-12-26	1.35
164 TRI_2018-10-28	1.34
165 TRI_2020-11-05	1.34
166 TRI_2017-03-30	1.32
167 TRI_2018-05-11	1.32
168 TRI_2020-08-07	1.30
169 TRI_2018-09-26	1.28
170 TRI_2020-04-21	1.27
171 TRI_2021-04-08	1.27
172 TRI_2021-07-22	1.27
173 TRI_2021-03-28	1.24
174 TRI_2017-06-18	1.23
175 TRI_2018-11-25	1.18
176 TRI_2017-04-24	1.16
177 TRI_2018-10-27	1.12
178 TRI_2017-06-01	1.10
179 TRI_2020-03-31	1.10
180 TRI_2020-05-27	1.10
181 TRI_2018-09-11	1.09
182 TRI_2018-05-01	1.08
183 TRI_2018-11-18	1.08
184 TRI_2017-01-02	1.06
185 TRI_2018-03-03	1.02
186 TRI_2017-04-08	1.00
187 TRI_2018-05-27	0.99
188 TRI_2018-09-03	0.99
189 TRI_2020-08-08	0.98
190 TRI_2021-10-18	0.90
191 TRI_2018-02-15	0.88
192 TRI_2018-05-20	0.87
193 TRI_2020-05-07	0.86
194 TRI_2017-11-03	0.83
195 TRI_2018-08-16	0.82
196 TRI_2017-07-21	0.81
197 TRI_2021-06-26	0.81
198 TRI_2020-08-06	0.80
199 TRI_2021-02-14	0.80
200 TRI_2021-08-31	0.80
201 TRI_2018-02-04	0.79
202 TRI_2018-07-26	0.79
203 TRI_2020-09-14	0.77
204 TRI_2017-11-05	0.76
205 TRI_2017-12-06	0.74
206 TRI_2018-08-04	0.74
207 TRI_2020-03-17	0.74
208 TRI_2020-03-22	0.72
209 TRI_2020-05-05	0.71
210 TRI_2018-05-07	0.69
211 TRI_2020-03-20	0.68
212 TRI_2017-03-25	0.67
213 TRI_2020-09-08	0.66
214 TRI_2021-09-05	0.65
215 TRI_2017-02-10	0.64
216 TRI_2018-11-03	0.64
217 TRI_2021-10-14	0.61
218 TRI_2017-04-07	0.59
219 TRI_2020-08-15	0.58
220 TRI_2018-09-27	0.57
221 TRI_2018-01-23	0.56
222 TRI_2021-11-25	0.56
223 TRI_2018-04-05	0.55
224 TRI_2017-08-13	0.54
225 TRI_2020-04-14	0.50
226 TRI_2021-06-15	0.49
227 TRI_2021-11-14	0.49
228 TRI_2018-12-30	0.48
229 TRI_2021-03-31	0.48
230 TRI_2021-10-22	0.48
231 TRI_2018-03-14	0.46
232 TRI_2017-12-23	0.45
233 TRI_2021-08-14	0.45
234 TRI_2021-03-27	0.44
235 TRI_2017-12-01	0.42
236 TRI_2017-04-01	0.41
237 TRI_2020-10-18	0.41
238 TRI_2017-05-04	0.40
239 TRI_2018-08-17	0.39
240 TRI_2018-11-17	0.39
241 TRI_2020-11-23	0.39
242 TRI_2018-05-10	0.38
243 TRI_2021-11-20	0.37
244 TRI_2017-02-14	0.36
245 TRI_2018-02-26	0.35
246 TRI_2020-01-13	0.34
247 TRI_2021-05-07	0.34
248 TRI_2017-05-09	0.31
249 TRI_2020-01-22	0.30
250 TRI_2020-06-23	0.30
251 TRI_2020-11-22	0.30
252 TRI_2020-05-14	0.29
253 TRI_2017-01-20	0.28
254 TRI_2020-07-19	0.28
255 TRI_2017-01-25	0.27
256 TRI_2018-02-27	0.26
257 TRI_2021-06-14	0.26
258 TRI_2018-10-07	0.24
259 TRI_2021-11-11	0.24
260 TRI_2017-04-23	0.23
261 TRI_2018-01-27	0.22
262 TRI_2017-05-24	0.21
263 TRI_2018-06-11	0.21
264 TRI_2018-07-12	0.20
265 TRI_2020-12-17	0.17
266 TRI_2017-01-26	0.14
267 TRI_2018-11-04	0.14
268 TRI_2021-03-06	0.14
269 TRI_2017-03-15	0.13
270 TRI_2017-07-16	0.12
271 TRI_2020-04-02	0.10
272 TRI_2018-04-01	0.08
273 TRI_2018-01-26	0.07
274 TRI_2021-05-08	0.06
275 TRI_2017-03-16	0.05
276 TRI_2017-01-01	0.00
277 TRI_2017-01-04	0.00
278 TRI_2017-01-05	0.00
279 TRI_2017-01-06	0.00

Rank, NPP code, date

mSv

1 TRI_2018-11-15

46.81

37.04

25.66

25.47

25.24

20.10

19.35

18.55

18.49

18.02

17.86

17.75

16.57

16.17

15.30

15.28

14.83

14.17

13.93

13.87

13.66

13.50

13.06

12.59

12.24

11.24

11.11

10.84

10.34

10.23

10.09

9.19

9.00

8.80

8.76

8.53

8.04

7.94

7.79

6.95

6.85

6.62

6.54

6.51

6.49

6.44

6.41

6.40

6.38

6.30

6.29

6.27

6.14

5.74

5.70

5.66

5.58

5.44

5.27

5.22

5.18

4.89

4.88

4.55

4.53

4.50

4.44

4.41

4.35

4.34

4.31

4.29

4.17

4.04

4.02

3.98

3.88

3.80

3.79

3.74

3.71

3.65

3.53

3.49

3.47

3.45

3.44

3.42

3.40

3.39

3.37

3.36

3.36

3.32

3.29

3.28

3.23

3.09

3.09

3.09

3.01

3.01

2.97

2.96

2.95

2.91

2.89

2.87

2.85

2.79

2.74

2.71

2.68

2.66

2.59

2.56

2.46

2.46

2.46

2.43

2.39

2.34

2.34

2.33

2.33

2.27

2.23

2.19

2.18

2.15

2.14

2.14

2.13

2.09

1.97

1.94

1.92

1.87

1.87

1.80

1.78

1.74

1.72

1.71

1.70

1.68

1.63

1.56

1.54

1.54

1.53

1.52

1.51

1.50

1.47

1.45

1.42

1.40

1.39

1.38

1.38

1.37

1.35

1.34

1.34

1.32

1.32

1.30

1.28

1.27

1.27

1.27

1.24

1.23

1.18

1.16

1.12

1.10

1.10

1.10

1.09

1.08

1.08

1.06

1.02

1.00

0.99

0.99

0.98

0.90

0.88

0.87

0.86

0.83

0.82

0.81

0.81

0.80

0.80

0.80

0.79

0.79

0.77

0.76

0.74

0.74

0.74

0.72

0.71

0.69

0.68

0.67

0.66

0.65

0.64

0.64

0.61

0.59

0.58

0.57

0.56

0.56

0.55

0.54

0.50

0.49

0.49

0.48

0.48

0.48

0.46

0.45

0.45

0.44

0.42

0.41

0.41

0.40

0.39

0.39

0.39

0.38

0.37

0.36

0.35

0.34

0.34

0.31

0.30

0.30

0.30

0.29

0.28

0.28

0.27

0.26

0.26

0.24

0.24

0.23

0.22

0.21

0.21

0.20

0.17

0.14

0.14

0.14

0.13

0.12

0.10

0.08

0.07

0.06

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 :

Mende (100 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)