Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2017-06-09	85.35
2 TRI_2018-09-12	23.09
3 TRI_2017-05-04	22.83
4 TRI_2017-01-02	22.76
5 TRI_2017-05-26	22.08
6 TRI_2018-09-18	20.12
7 TRI_2020-06-03	20.06
8 TRI_2017-08-03	16.00
9 TRI_2017-09-09	14.67
10 TRI_2017-11-02	14.38
11 TRI_2018-04-22	11.12
12 TRI_2018-11-13	10.21
13 TRI_2017-08-08	9.95
14 TRI_2020-07-21	9.89
15 TRI_2018-07-02	9.10
16 TRI_2020-11-02	9.08
17 TRI_2021-07-12	9.05
18 TRI_2018-11-30	8.63
19 TRI_2020-04-12	8.34
20 TRI_2017-07-30	7.62
21 TRI_2020-12-20	7.59
22 TRI_2018-09-16	7.41
23 TRI_2017-10-21	7.14
24 TRI_2017-06-19	6.75
25 TRI_2017-02-26	6.71
26 TRI_2017-05-22	6.53
27 TRI_2020-08-19	6.44
28 TRI_2018-12-02	5.97
29 TRI_2021-05-08	5.92
30 TRI_2018-05-31	5.87
31 TRI_2018-08-06	5.87
32 TRI_2021-02-08	5.81
33 TRI_2018-07-27	5.58
34 TRI_2020-09-21	5.57
35 TRI_2020-05-09	5.52
36 TRI_2020-10-01	5.50
37 TRI_2017-06-02	5.35
38 TRI_2017-04-09	5.34
39 TRI_2020-06-24	5.30
40 TRI_2017-06-08	5.28
41 TRI_2020-04-01	5.26
42 TRI_2021-05-04	5.20
43 TRI_2021-06-18	5.18
44 TRI_2020-04-16	5.15
45 TRI_2021-05-11	5.13
46 TRI_2021-06-17	5.13
47 TRI_2017-10-11	4.90
48 TRI_2018-12-13	4.87
49 TRI_2020-12-29	4.77
50 TRI_2020-01-26	4.72
51 TRI_2020-12-06	4.71
52 TRI_2018-04-08	4.69
53 TRI_2017-05-27	4.57
54 TRI_2017-03-02	4.38
55 TRI_2021-07-24	4.35
56 TRI_2017-06-30	4.20
57 TRI_2020-04-11	3.94
58 TRI_2020-08-21	3.94
59 TRI_2021-12-25	3.91
60 TRI_2017-04-24	3.81
61 TRI_2021-05-10	3.77
62 TRI_2018-02-17	3.67
63 TRI_2021-06-03	3.63
64 TRI_2020-06-11	3.61
65 TRI_2020-09-30	3.56
66 TRI_2021-04-08	3.56
67 TRI_2021-06-16	3.55
68 TRI_2020-12-07	3.53
69 TRI_2017-04-25	3.40
70 TRI_2017-07-10	3.32
71 TRI_2018-01-05	3.32
72 TRI_2017-07-04	3.29
73 TRI_2021-09-13	3.19
74 TRI_2021-11-02	3.19
75 TRI_2018-07-04	3.12
76 TRI_2018-06-10	3.10
77 TRI_2017-03-05	3.09
78 TRI_2018-06-06	3.09
79 TRI_2021-09-15	3.07
80 TRI_2020-02-01	3.06
81 TRI_2017-06-03	3.04
82 TRI_2018-01-16	3.01
83 TRI_2020-04-30	3.01
84 TRI_2021-12-04	3.00
85 TRI_2018-12-21	2.99
86 TRI_2017-02-28	2.92
87 TRI_2021-05-21	2.89
88 TRI_2017-02-23	2.87
89 TRI_2020-05-05	2.87
90 TRI_2020-06-27	2.87
91 TRI_2020-09-23	2.86
92 TRI_2017-06-29	2.82
93 TRI_2017-09-14	2.80
94 TRI_2021-07-06	2.79
95 TRI_2018-12-19	2.77
96 TRI_2020-08-12	2.70
97 TRI_2020-08-15	2.66
98 TRI_2020-12-23	2.65
99 TRI_2018-07-01	2.63
100 TRI_2017-06-13	2.58
101 TRI_2017-07-20	2.57
102 TRI_2018-04-21	2.57
103 TRI_2020-07-01	2.50
104 TRI_2017-09-29	2.46
105 TRI_2017-09-27	2.43
106 TRI_2017-08-23	2.42
107 TRI_2018-06-04	2.41
108 TRI_2018-04-20	2.39
109 TRI_2018-05-07	2.39
110 TRI_2018-06-05	2.37
111 TRI_2021-03-06	2.37
112 TRI_2018-03-03	2.34
113 TRI_2017-12-14	2.31
114 TRI_2020-12-31	2.31
115 TRI_2017-08-02	2.25
116 TRI_2018-05-11	2.22
117 TRI_2020-07-27	2.22
118 TRI_2021-04-11	2.21
119 TRI_2020-08-10	2.19
120 TRI_2017-02-15	2.18
121 TRI_2017-11-24	2.18
122 TRI_2021-03-11	2.18
123 TRI_2020-06-25	2.16
124 TRI_2021-03-03	2.13
125 TRI_2020-07-29	2.11
126 TRI_2020-06-26	2.10
127 TRI_2017-05-28	2.07
128 TRI_2020-08-16	2.06
129 TRI_2017-07-07	2.04
130 TRI_2021-08-07	2.02
131 TRI_2018-05-23	2.00
132 TRI_2017-08-07	1.98
133 TRI_2018-10-04	1.96
134 TRI_2021-04-24	1.94
135 TRI_2020-09-22	1.93
136 TRI_2018-04-27	1.90
137 TRI_2020-01-06	1.90
138 TRI_2020-02-10	1.90
139 TRI_2020-08-09	1.89
140 TRI_2021-12-23	1.89
141 TRI_2020-12-08	1.87
142 TRI_2018-06-09	1.86
143 TRI_2018-08-07	1.86
144 TRI_2021-08-12	1.86
145 TRI_2018-09-17	1.84
146 TRI_2021-05-24	1.84
147 TRI_2017-06-28	1.83
148 TRI_2017-08-15	1.83
149 TRI_2020-05-01	1.79
150 TRI_2018-05-12	1.77
151 TRI_2018-09-05	1.74
152 TRI_2018-10-06	1.72
153 TRI_2017-07-21	1.71
154 TRI_2017-07-17	1.70
155 TRI_2021-01-02	1.69
156 TRI_2020-07-30	1.67
157 TRI_2020-03-01	1.65
158 TRI_2020-10-06	1.65
159 TRI_2020-04-27	1.63
160 TRI_2017-11-28	1.60
161 TRI_2020-02-17	1.60
162 TRI_2021-11-27	1.60
163 TRI_2018-02-27	1.57
164 TRI_2020-10-05	1.57
165 TRI_2020-01-13	1.56
166 TRI_2021-02-01	1.55
167 TRI_2017-09-26	1.54
168 TRI_2021-07-29	1.52
169 TRI_2017-05-16	1.50
170 TRI_2020-02-16	1.49
171 TRI_2021-04-27	1.46
172 TRI_2020-03-16	1.41
173 TRI_2017-01-30	1.40
174 TRI_2017-04-23	1.40
175 TRI_2020-10-18	1.38
176 TRI_2020-10-04	1.37
177 TRI_2017-06-21	1.34
178 TRI_2017-12-10	1.34
179 TRI_2020-11-01	1.34
180 TRI_2021-06-21	1.33
181 TRI_2020-04-06	1.32
182 TRI_2020-06-02	1.32
183 TRI_2020-12-28	1.32
184 TRI_2020-07-31	1.31
185 TRI_2020-08-13	1.31
186 TRI_2021-08-14	1.31
187 TRI_2017-05-06	1.26
188 TRI_2018-08-28	1.23
189 TRI_2018-09-30	1.22
190 TRI_2018-03-24	1.21
191 TRI_2020-01-28	1.21
192 TRI_2018-04-12	1.20
193 TRI_2020-05-12	1.19
194 TRI_2020-04-17	1.18
195 TRI_2018-01-31	1.17
196 TRI_2020-05-04	1.16
197 TRI_2021-12-28	1.16
198 TRI_2021-05-16	1.13
199 TRI_2018-08-15	1.12
200 TRI_2021-05-31	1.12
201 TRI_2020-06-04	1.11
202 TRI_2017-05-02	1.10
203 TRI_2018-03-04	1.09
204 TRI_2017-08-13	1.07
205 TRI_2017-10-20	1.07
206 TRI_2020-02-13	1.07
207 TRI_2020-01-12	1.05
208 TRI_2017-12-26	1.04
209 TRI_2020-12-21	1.04
210 TRI_2021-02-14	1.04
211 TRI_2020-10-31	1.03
212 TRI_2017-02-03	1.02
213 TRI_2021-10-01	1.02
214 TRI_2021-05-15	1.01
215 TRI_2017-07-29	1.00
216 TRI_2018-07-14	0.99
217 TRI_2020-03-05	0.97
218 TRI_2017-12-31	0.95
219 TRI_2018-06-03	0.95
220 TRI_2020-10-23	0.93
221 TRI_2021-09-12	0.91
222 TRI_2017-03-22	0.90
223 TRI_2017-12-30	0.89
224 TRI_2018-02-16	0.88
225 TRI_2018-08-12	0.87
226 TRI_2018-11-23	0.87
227 TRI_2017-02-05	0.86
228 TRI_2020-09-14	0.86
229 TRI_2017-08-29	0.83
230 TRI_2017-12-15	0.83
231 TRI_2018-01-15	0.83
232 TRI_2021-06-04	0.82
233 TRI_2017-04-01	0.81
234 TRI_2017-05-29	0.81
235 TRI_2017-11-01	0.81
236 TRI_2021-10-21	0.81
237 TRI_2020-05-11	0.79
238 TRI_2021-06-20	0.78
239 TRI_2020-11-18	0.75
240 TRI_2020-01-10	0.72
241 TRI_2017-08-22	0.71
242 TRI_2021-07-27	0.71
243 TRI_2018-03-29	0.67
244 TRI_2017-03-06	0.66
245 TRI_2020-02-27	0.66
246 TRI_2021-02-09	0.66
247 TRI_2017-08-26	0.65
248 TRI_2018-05-25	0.65
249 TRI_2021-12-27	0.65
250 TRI_2018-01-10	0.64
251 TRI_2021-02-05	0.64
252 TRI_2017-09-28	0.63
253 TRI_2018-03-05	0.63
254 TRI_2020-02-15	0.62
255 TRI_2018-08-29	0.61
256 TRI_2020-04-10	0.60
257 TRI_2017-07-22	0.59
258 TRI_2020-09-04	0.59
259 TRI_2021-06-22	0.55
260 TRI_2017-01-01	0.52
261 TRI_2017-12-07	0.51
262 TRI_2020-05-22	0.51
263 TRI_2021-10-18	0.48
264 TRI_2020-09-20	0.47
265 TRI_2021-03-31	0.46
266 TRI_2017-11-23	0.45
267 TRI_2021-06-01	0.44
268 TRI_2017-05-03	0.43
269 TRI_2017-10-31	0.43
270 TRI_2020-01-08	0.43
271 TRI_2020-07-28	0.42
272 TRI_2021-08-21	0.41
273 TRI_2017-03-16	0.40
274 TRI_2020-04-14	0.37
275 TRI_2020-06-13	0.36
276 TRI_2017-12-06	0.33
277 TRI_2021-05-06	0.33
278 TRI_2018-10-28	0.32
279 TRI_2021-04-30	0.31
280 TRI_2018-07-03	0.30
281 TRI_2018-09-20	0.30
282 TRI_2021-08-13	0.30
283 TRI_2018-10-29	0.28
284 TRI_2018-06-30	0.27
285 TRI_2018-08-16	0.27
286 TRI_2020-06-01	0.27
287 TRI_2021-03-30	0.27
288 TRI_2017-03-31	0.25
289 TRI_2018-05-30	0.25
290 TRI_2021-09-09	0.24
291 TRI_2017-06-27	0.23
292 TRI_2018-10-30	0.23
293 TRI_2018-07-26	0.22
294 TRI_2020-01-02	0.20
295 TRI_2018-04-01	0.18
296 TRI_2017-06-20	0.17
297 TRI_2017-12-08	0.15
298 TRI_2018-04-30	0.14
299 TRI_2017-07-28	0.13
300 TRI_2020-09-05	0.13
301 TRI_2020-07-09	0.12
302 TRI_2017-08-27	0.10
303 TRI_2018-08-05	0.09
304 TRI_2017-02-25	0.07
305 TRI_2021-02-25	0.06
306 TRI_2020-05-10	0.05
307 TRI_2018-01-18	0.04
308 TRI_2017-01-03	0.00
309 TRI_2017-01-04	0.00
310 TRI_2017-01-05	0.00
311 TRI_2017-01-06	0.00

Rank, NPP code, date

mSv

1 TRI_2017-06-09

85.35

23.09

22.83

22.76

22.08

20.12

20.06

16.00

14.67

14.38

11.12

10.21

9.95

9.89

9.10

9.08

9.05

8.63

8.34

7.62

7.59

7.41

7.14

6.75

6.71

6.53

6.44

5.97

5.92

5.87

5.87

5.81

5.58

5.57

5.52

5.50

5.35

5.34

5.30

5.28

5.26

5.20

5.18

5.15

5.13

5.13

4.90

4.87

4.77

4.72

4.71

4.69

4.57

4.38

4.35

4.20

3.94

3.94

3.91

3.81

3.77

3.67

3.63

3.61

3.56

3.56

3.55

3.53

3.40

3.32

3.32

3.29

3.19

3.19

3.12

3.10

3.09

3.09

3.07

3.06

3.04

3.01

3.01

3.00

2.99

2.92

2.89

2.87

2.87

2.87

2.86

2.82

2.80

2.79

2.77

2.70

2.66

2.65

2.63

2.58

2.57

2.57

2.50

2.46

2.43

2.42

2.41

2.39

2.39

2.37

2.37

2.34

2.31

2.31

2.25

2.22

2.22

2.21

2.19

2.18

2.18

2.18

2.16

2.13

2.11

2.10

2.07

2.06

2.04

2.02

2.00

1.98

1.96

1.94

1.93

1.90

1.90

1.90

1.89

1.89

1.87

1.86

1.86

1.86

1.84

1.84

1.83

1.83

1.79

1.77

1.74

1.72

1.71

1.70

1.69

1.67

1.65

1.65

1.63

1.60

1.60

1.60

1.57

1.57

1.56

1.55

1.54

1.52

1.50

1.49

1.46

1.41

1.40

1.40

1.38

1.37

1.34

1.34

1.34

1.33

1.32

1.32

1.32

1.31

1.31

1.31

1.26

1.23

1.22

1.21

1.21

1.20

1.19

1.18

1.17

1.16

1.16

1.13

1.12

1.12

1.11

1.10

1.09

1.07

1.07

1.07

1.05

1.04

1.04

1.04

1.03

1.02

1.02

1.01

1.00

0.99

0.97

0.95

0.95

0.93

0.91

0.90

0.89

0.88

0.87

0.87

0.86

0.86

0.83

0.83

0.83

0.82

0.81

0.81

0.81

0.81

0.79

0.78

0.75

0.72

0.71

0.71

0.67

0.66

0.66

0.66

0.65

0.65

0.65

0.64

0.64

0.63

0.63

0.62

0.61

0.60

0.59

0.59

0.55

0.52

0.51

0.51

0.48

0.47

0.46

0.45

0.44

0.43

0.43

0.43

0.42

0.41

0.40

0.37

0.36

0.33

0.33

0.32

0.31

0.30

0.30

0.30

0.28

0.27

0.27

0.27

0.27

0.25

0.25

0.24

0.23

0.23

0.22

0.20

0.18

0.17

0.15

0.14

0.13

0.13

0.12

0.10

0.09

0.07

0.06

0.05

0.04

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 :

Fribourg (334 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)