Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2017-05-29	35.61
2 TRI_2021-02-25	25.38
3 TRI_2017-01-30	24.48
4 TRI_2017-01-01	23.26
5 TRI_2020-11-13	14.76
6 TRI_2020-03-16	14.20
7 TRI_2020-01-02	13.32
8 TRI_2020-04-16	13.17
9 TRI_2021-09-09	12.36
10 TRI_2021-12-23	11.87
11 TRI_2020-10-25	11.31
12 TRI_2017-05-12	11.19
13 TRI_2020-10-23	11.12
14 TRI_2020-11-07	8.98
15 TRI_2021-02-15	8.90
16 TRI_2021-11-02	8.41
17 TRI_2021-07-24	7.72
18 TRI_2017-05-28	7.60
19 TRI_2021-04-09	7.55
20 TRI_2017-02-15	7.31
21 TRI_2020-04-06	7.31
22 TRI_2018-01-10	7.30
23 TRI_2020-02-16	7.28
24 TRI_2021-06-18	7.12
25 TRI_2020-02-08	7.09
26 TRI_2020-08-19	7.00
27 TRI_2017-03-31	6.93
28 TRI_2021-02-19	6.77
29 TRI_2021-03-30	6.68
30 TRI_2021-07-23	6.57
31 TRI_2021-12-24	6.40
32 TRI_2020-01-14	6.38
33 TRI_2020-10-01	6.28
34 TRI_2021-06-02	6.19
35 TRI_2021-03-03	6.11
36 TRI_2020-12-15	5.90
37 TRI_2020-02-15	5.85
38 TRI_2020-12-04	5.83
39 TRI_2018-01-25	5.79
40 TRI_2020-05-08	5.77
41 TRI_2020-11-18	5.73
42 TRI_2020-07-30	5.70
43 TRI_2018-03-09	5.68
44 TRI_2021-06-28	5.48
45 TRI_2020-06-26	5.40
46 TRI_2020-01-09	5.34
47 TRI_2020-06-13	5.31
48 TRI_2017-06-26	5.21
49 TRI_2020-01-27	5.19
50 TRI_2020-02-07	4.97
51 TRI_2020-10-20	4.96
52 TRI_2020-12-06	4.95
53 TRI_2021-05-10	4.93
54 TRI_2020-08-16	4.83
55 TRI_2017-05-22	4.78
56 TRI_2020-01-17	4.76
57 TRI_2020-02-09	4.74
58 TRI_2017-02-27	4.70
59 TRI_2020-06-25	4.68
60 TRI_2021-02-18	4.67
61 TRI_2017-09-26	4.63
62 TRI_2017-11-04	4.61
63 TRI_2017-12-25	4.56
64 TRI_2020-10-22	4.56
65 TRI_2017-07-19	4.52
66 TRI_2020-01-06	4.39
67 TRI_2020-08-12	4.39
68 TRI_2018-08-09	4.35
69 TRI_2017-09-27	4.33
70 TRI_2017-08-08	4.27
71 TRI_2020-01-26	4.25
72 TRI_2021-09-15	4.21
73 TRI_2020-09-04	4.20
74 TRI_2017-05-02	4.18
75 TRI_2021-10-01	4.14
76 TRI_2017-06-27	4.10
77 TRI_2018-12-19	4.08
78 TRI_2020-01-13	4.02
79 TRI_2017-10-14	3.98
80 TRI_2020-11-15	3.98
81 TRI_2017-01-29	3.97
82 TRI_2017-04-08	3.90
83 TRI_2020-01-15	3.89
84 TRI_2020-04-12	3.73
85 TRI_2021-12-22	3.68
86 TRI_2017-02-26	3.64
87 TRI_2020-04-11	3.53
88 TRI_2021-12-27	3.52
89 TRI_2018-06-06	3.48
90 TRI_2021-10-20	3.47
91 TRI_2021-06-17	3.46
92 TRI_2017-02-01	3.38
93 TRI_2017-07-17	3.26
94 TRI_2020-12-05	3.22
95 TRI_2018-11-21	3.18
96 TRI_2021-01-19	3.18
97 TRI_2021-03-31	3.18
98 TRI_2020-12-17	3.09
99 TRI_2020-12-11	3.08
100 TRI_2017-08-01	2.98
101 TRI_2021-04-10	2.98
102 TRI_2018-08-06	2.96
103 TRI_2017-08-30	2.93
104 TRI_2021-09-13	2.92
105 TRI_2021-07-12	2.91
106 TRI_2017-05-31	2.87
107 TRI_2020-12-23	2.86
108 TRI_2021-06-16	2.81
109 TRI_2021-09-25	2.81
110 TRI_2020-08-13	2.80
111 TRI_2021-02-05	2.80
112 TRI_2020-06-24	2.78
113 TRI_2017-12-06	2.77
114 TRI_2021-06-03	2.75
115 TRI_2018-10-30	2.69
116 TRI_2020-11-12	2.68
117 TRI_2017-08-15	2.67
118 TRI_2021-03-02	2.67
119 TRI_2021-10-27	2.62
120 TRI_2017-11-23	2.61
121 TRI_2017-07-30	2.60
122 TRI_2021-01-22	2.60
123 TRI_2018-11-11	2.59
124 TRI_2018-04-12	2.54
125 TRI_2021-02-24	2.53
126 TRI_2021-10-18	2.48
127 TRI_2021-01-21	2.46
128 TRI_2021-06-04	2.45
129 TRI_2017-10-20	2.41
130 TRI_2020-05-09	2.37
131 TRI_2020-04-27	2.32
132 TRI_2021-04-08	2.31
133 TRI_2020-01-12	2.28
134 TRI_2017-11-02	2.26
135 TRI_2020-12-28	2.24
136 TRI_2021-05-08	2.18
137 TRI_2020-10-04	2.12
138 TRI_2017-10-11	2.08
139 TRI_2021-06-22	2.07
140 TRI_2021-02-23	2.05
141 TRI_2017-12-07	2.03
142 TRI_2018-11-13	2.03
143 TRI_2017-11-01	2.02
144 TRI_2018-10-05	2.01
145 TRI_2020-06-03	2.01
146 TRI_2020-11-25	2.01
147 TRI_2020-03-05	2.00
148 TRI_2021-02-14	2.00
149 TRI_2021-04-28	2.00
150 TRI_2018-04-13	1.99
151 TRI_2021-06-19	1.98
152 TRI_2020-12-21	1.97
153 TRI_2018-01-05	1.96
154 TRI_2018-09-17	1.92
155 TRI_2017-07-05	1.88
156 TRI_2021-02-20	1.86
157 TRI_2020-12-20	1.84
158 TRI_2017-03-02	1.83
159 TRI_2017-05-16	1.83
160 TRI_2018-03-08	1.83
161 TRI_2017-10-16	1.80
162 TRI_2018-01-24	1.80
163 TRI_2018-11-30	1.77
164 TRI_2017-04-01	1.74
165 TRI_2021-10-24	1.74
166 TRI_2018-09-18	1.71
167 TRI_2018-06-11	1.70
168 TRI_2017-08-23	1.66
169 TRI_2017-09-09	1.66
170 TRI_2018-08-28	1.65
171 TRI_2018-10-06	1.64
172 TRI_2020-02-29	1.63
173 TRI_2018-05-30	1.56
174 TRI_2017-01-28	1.54
175 TRI_2017-05-17	1.52
176 TRI_2017-11-28	1.52
177 TRI_2021-06-21	1.52
178 TRI_2020-12-18	1.50
179 TRI_2020-03-15	1.49
180 TRI_2021-02-04	1.49
181 TRI_2017-11-24	1.45
182 TRI_2018-03-30	1.45
183 TRI_2020-08-15	1.43
184 TRI_2017-08-24	1.42
185 TRI_2021-02-03	1.42
186 TRI_2020-11-01	1.38
187 TRI_2017-05-06	1.37
188 TRI_2017-12-26	1.37
189 TRI_2021-06-26	1.37
190 TRI_2018-08-07	1.36
191 TRI_2020-10-31	1.34
192 TRI_2021-01-20	1.31
193 TRI_2017-01-31	1.30
194 TRI_2020-08-20	1.29
195 TRI_2021-10-31	1.29
196 TRI_2017-10-19	1.27
197 TRI_2021-09-07	1.25
198 TRI_2017-03-03	1.22
199 TRI_2017-07-06	1.22
200 TRI_2017-03-27	1.16
201 TRI_2018-10-04	1.16
202 TRI_2021-06-20	1.16
203 TRI_2017-03-22	1.15
204 TRI_2018-05-29	1.14
205 TRI_2020-04-17	1.14
206 TRI_2021-07-22	1.14
207 TRI_2020-12-29	1.13
208 TRI_2018-12-02	1.12
209 TRI_2017-05-26	1.09
210 TRI_2018-01-15	1.08
211 TRI_2021-09-24	1.04
212 TRI_2020-11-26	1.03
213 TRI_2018-01-08	1.02
214 TRI_2017-09-28	1.01
215 TRI_2018-09-16	1.01
216 TRI_2017-10-13	0.99
217 TRI_2017-06-19	0.98
218 TRI_2018-04-03	0.94
219 TRI_2020-12-14	0.91
220 TRI_2020-12-07	0.90
221 TRI_2018-04-08	0.88
222 TRI_2018-03-04	0.87
223 TRI_2020-09-18	0.87
224 TRI_2017-06-08	0.85
225 TRI_2018-11-29	0.85
226 TRI_2020-09-30	0.85
227 TRI_2020-08-11	0.83
228 TRI_2020-10-21	0.82
229 TRI_2018-04-21	0.81
230 TRI_2017-12-10	0.80
231 TRI_2020-03-02	0.79
232 TRI_2021-05-15	0.77
233 TRI_2020-12-31	0.72
234 TRI_2021-12-21	0.72
235 TRI_2017-09-29	0.70
236 TRI_2017-11-22	0.70
237 TRI_2020-09-20	0.69
238 TRI_2020-10-18	0.69
239 TRI_2018-06-10	0.67
240 TRI_2020-11-11	0.65
241 TRI_2018-08-12	0.64
242 TRI_2020-02-14	0.64
243 TRI_2020-05-10	0.63
244 TRI_2017-02-03	0.61
245 TRI_2017-06-20	0.61
246 TRI_2020-09-14	0.61
247 TRI_2017-05-27	0.59
248 TRI_2020-11-17	0.59
249 TRI_2018-04-27	0.58
250 TRI_2018-04-04	0.57
251 TRI_2020-01-25	0.57
252 TRI_2020-10-19	0.57
253 TRI_2020-09-22	0.55
254 TRI_2018-12-21	0.53
255 TRI_2017-07-08	0.52
256 TRI_2017-10-15	0.51
257 TRI_2017-06-01	0.50
258 TRI_2017-07-20	0.50
259 TRI_2018-09-28	0.50
260 TRI_2018-12-18	0.48
261 TRI_2018-04-10	0.47
262 TRI_2020-08-21	0.47
263 TRI_2020-10-03	0.47
264 TRI_2021-02-16	0.46
265 TRI_2018-08-08	0.44
266 TRI_2020-05-07	0.44
267 TRI_2017-05-09	0.42
268 TRI_2018-04-20	0.40
269 TRI_2018-03-05	0.38
270 TRI_2018-06-09	0.38
271 TRI_2017-08-14	0.36
272 TRI_2020-11-14	0.36
273 TRI_2017-03-30	0.32
274 TRI_2017-05-18	0.32
275 TRI_2017-10-31	0.32
276 TRI_2018-01-31	0.32
277 TRI_2018-07-01	0.32
278 TRI_2020-01-16	0.31
279 TRI_2018-11-23	0.30
280 TRI_2018-05-31	0.27
281 TRI_2020-10-06	0.27
282 TRI_2021-04-27	0.27
283 TRI_2017-06-18	0.23
284 TRI_2018-04-07	0.22
285 TRI_2021-12-25	0.21
286 TRI_2017-07-31	0.20
287 TRI_2021-06-27	0.20
288 TRI_2018-11-22	0.19
289 TRI_2021-10-17	0.19
290 TRI_2017-07-04	0.17
291 TRI_2018-04-30	0.16
292 TRI_2017-08-26	0.14
293 TRI_2018-06-05	0.12
294 TRI_2021-09-08	0.10
295 TRI_2020-08-10	0.09
296 TRI_2020-09-23	0.09
297 TRI_2017-02-28	0.07
298 TRI_2017-11-03	0.07
299 TRI_2017-08-02	0.06
300 TRI_2018-07-04	0.06
301 TRI_2017-01-02	0.00
302 TRI_2017-01-03	0.00
303 TRI_2017-01-04	0.00
304 TRI_2017-01-05	0.00

Rank, NPP code, date

mSv

1 TRI_2017-05-29

35.61

25.38

24.48

23.26

14.76

14.20

13.32

13.17

12.36

11.87

11.31

11.19

11.12

8.98

8.90

8.41

7.72

7.60

7.55

7.31

7.31

7.30

7.28

7.12

7.09

7.00

6.93

6.77

6.68

6.57

6.40

6.38

6.28

6.19

6.11

5.90

5.85

5.83

5.79

5.77

5.73

5.70

5.68

5.48

5.40

5.34

5.31

5.21

5.19

4.97

4.96

4.95

4.93

4.83

4.78

4.76

4.74

4.70

4.68

4.67

4.63

4.61

4.56

4.56

4.52

4.39

4.39

4.35

4.33

4.27

4.25

4.21

4.20

4.18

4.14

4.10

4.08

4.02

3.98

3.98

3.97

3.90

3.89

3.73

3.68

3.64

3.53

3.52

3.48

3.47

3.46

3.38

3.26

3.22

3.18

3.18

3.18

3.09

3.08

2.98

2.98

2.96

2.93

2.92

2.91

2.87

2.86

2.81

2.81

2.80

2.80

2.78

2.77

2.75

2.69

2.68

2.67

2.67

2.62

2.61

2.60

2.60

2.59

2.54

2.53

2.48

2.46

2.45

2.41

2.37

2.32

2.31

2.28

2.26

2.24

2.18

2.12

2.08

2.07

2.05

2.03

2.03

2.02

2.01

2.01

2.01

2.00

2.00

2.00

1.99

1.98

1.97

1.96

1.92

1.88

1.86

1.84

1.83

1.83

1.83

1.80

1.80

1.77

1.74

1.74

1.71

1.70

1.66

1.66

1.65

1.64

1.63

1.56

1.54

1.52

1.52

1.52

1.50

1.49

1.49

1.45

1.45

1.43

1.42

1.42

1.38

1.37

1.37

1.37

1.36

1.34

1.31

1.30

1.29

1.29

1.27

1.25

1.22

1.22

1.16

1.16

1.16

1.15

1.14

1.14

1.14

1.13

1.12

1.09

1.08

1.04

1.03

1.02

1.01

1.01

0.99

0.98

0.94

0.91

0.90

0.88

0.87

0.87

0.85

0.85

0.85

0.83

0.82

0.81

0.80

0.79

0.77

0.72

0.72

0.70

0.70

0.69

0.69

0.67

0.65

0.64

0.64

0.63

0.61

0.61

0.61

0.59

0.59

0.58

0.57

0.57

0.57

0.55

0.53

0.52

0.51

0.50

0.50

0.50

0.48

0.47

0.47

0.47

0.46

0.44

0.44

0.42

0.40

0.38

0.38

0.36

0.36

0.32

0.32

0.32

0.32

0.32

0.31

0.30

0.27

0.27

0.27

0.23

0.22

0.21

0.20

0.20

0.19

0.19

0.17

0.16

0.14

0.12

0.10

0.09

0.09

0.07

0.07

0.06

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 :

Strasbourg (526 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)