Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2018-08-13	44.69
2 TRI_2018-08-29	31.39
3 TRI_2018-06-08	27.50
4 TRI_2020-04-26	26.49
5 TRI_2017-03-12	21.93
6 TRI_2017-06-09	21.40
7 TRI_2021-06-24	21.20
8 TRI_2018-10-27	20.30
9 TRI_2020-04-01	17.41
10 TRI_2020-10-31	17.08
11 TRI_2021-03-04	17.07
12 TRI_2017-12-30	16.99
13 TRI_2020-05-30	16.95
14 TRI_2021-11-02	16.77
15 TRI_2017-03-06	16.75
16 TRI_2017-06-20	14.77
17 TRI_2020-10-05	14.63
18 TRI_2021-04-02	14.32
19 TRI_2020-11-01	13.90
20 TRI_2018-09-21	13.53
21 TRI_2017-06-21	13.49
22 TRI_2018-05-22	12.92
23 TRI_2021-04-01	12.52
24 TRI_2017-06-22	12.46
25 TRI_2018-09-26	12.31
26 TRI_2021-10-21	12.08
27 TRI_2018-05-23	12.02
28 TRI_2018-03-14	11.70
29 TRI_2020-06-04	11.57
30 TRI_2017-02-16	11.43
31 TRI_2020-09-05	10.84
32 TRI_2020-04-24	10.79
33 TRI_2018-08-16	10.53
34 TRI_2020-07-20	10.35
35 TRI_2017-07-03	10.29
36 TRI_2021-11-20	10.06
37 TRI_2018-07-27	9.63
38 TRI_2017-08-23	9.45
39 TRI_2018-12-02	9.17
40 TRI_2018-07-26	9.13
41 TRI_2017-09-26	8.99
42 TRI_2017-03-13	8.91
43 TRI_2020-06-02	8.73
44 TRI_2021-04-20	8.43
45 TRI_2020-03-29	8.39
46 TRI_2018-07-03	8.31
47 TRI_2018-06-27	8.07
48 TRI_2020-03-24	7.83
49 TRI_2018-06-07	7.82
50 TRI_2020-05-05	7.82
51 TRI_2021-10-08	7.62
52 TRI_2018-03-12	7.61
53 TRI_2021-03-07	7.45
54 TRI_2018-09-19	7.38
55 TRI_2018-07-24	7.24
56 TRI_2018-02-01	6.99
57 TRI_2018-07-14	6.99
58 TRI_2021-05-08	6.95
59 TRI_2017-08-13	6.88
60 TRI_2020-07-09	6.54
61 TRI_2020-05-23	6.49
62 TRI_2021-10-17	6.46
63 TRI_2021-12-25	6.43
64 TRI_2020-05-22	6.34
65 TRI_2021-06-23	6.29
66 TRI_2017-09-14	6.27
67 TRI_2018-07-15	6.12
68 TRI_2020-08-19	6.07
69 TRI_2018-06-29	5.86
70 TRI_2018-05-31	5.81
71 TRI_2018-07-28	5.72
72 TRI_2020-04-25	5.49
73 TRI_2020-06-11	5.44
74 TRI_2021-05-05	5.43
75 TRI_2020-04-02	5.41
76 TRI_2017-12-12	5.38
77 TRI_2021-04-08	5.34
78 TRI_2020-09-21	5.25
79 TRI_2021-07-29	5.10
80 TRI_2020-04-23	5.06
81 TRI_2018-09-25	5.04
82 TRI_2018-01-03	4.97
83 TRI_2020-06-13	4.95
84 TRI_2021-10-09	4.95
85 TRI_2020-09-16	4.92
86 TRI_2017-04-09	4.88
87 TRI_2017-12-14	4.84
88 TRI_2021-08-15	4.84
89 TRI_2017-11-08	4.72
90 TRI_2020-06-28	4.71
91 TRI_2017-12-15	4.68
92 TRI_2021-06-26	4.67
93 TRI_2018-03-03	4.53
94 TRI_2017-07-21	4.51
95 TRI_2018-10-28	4.48
96 TRI_2021-09-04	4.45
97 TRI_2021-05-06	4.40
98 TRI_2018-04-23	4.39
99 TRI_2018-07-19	4.38
100 TRI_2020-01-03	4.21
101 TRI_2020-05-15	4.21
102 TRI_2021-01-29	4.19
103 TRI_2017-10-07	4.08
104 TRI_2020-05-31	4.08
105 TRI_2018-01-18	4.04
106 TRI_2017-09-23	4.03
107 TRI_2018-04-25	4.02
108 TRI_2020-02-11	3.99
109 TRI_2020-05-11	3.91
110 TRI_2017-02-05	3.77
111 TRI_2021-07-27	3.76
112 TRI_2020-06-01	3.72
113 TRI_2017-08-18	3.69
114 TRI_2018-06-30	3.69
115 TRI_2021-12-01	3.63
116 TRI_2021-04-27	3.62
117 TRI_2017-09-25	3.57
118 TRI_2020-09-20	3.54
119 TRI_2017-08-22	3.49
120 TRI_2018-08-15	3.49
121 TRI_2020-06-06	3.37
122 TRI_2021-08-21	3.30
123 TRI_2017-09-29	3.27
124 TRI_2017-12-06	3.27
125 TRI_2020-08-09	3.27
126 TRI_2018-05-11	3.20
127 TRI_2021-08-22	3.16
128 TRI_2018-09-30	3.02
129 TRI_2018-07-29	3.00
130 TRI_2020-09-23	3.00
131 TRI_2018-06-04	2.98
132 TRI_2017-08-28	2.97
133 TRI_2020-08-06	2.94
134 TRI_2020-06-23	2.93
135 TRI_2021-01-04	2.85
136 TRI_2021-12-10	2.78
137 TRI_2018-11-24	2.76
138 TRI_2021-09-06	2.75
139 TRI_2018-09-05	2.72
140 TRI_2020-09-15	2.72
141 TRI_2018-10-26	2.69
142 TRI_2021-08-13	2.68
143 TRI_2018-11-30	2.67
144 TRI_2021-02-01	2.67
145 TRI_2017-09-30	2.63
146 TRI_2020-07-22	2.63
147 TRI_2018-09-09	2.62
148 TRI_2020-04-22	2.61
149 TRI_2020-11-11	2.61
150 TRI_2018-08-12	2.60
151 TRI_2020-12-31	2.58
152 TRI_2020-08-15	2.57
153 TRI_2017-05-19	2.53
154 TRI_2021-06-05	2.50
155 TRI_2020-08-08	2.48
156 TRI_2021-05-11	2.48
157 TRI_2021-07-03	2.40
158 TRI_2020-08-07	2.39
159 TRI_2021-11-27	2.38
160 TRI_2017-08-07	2.34
161 TRI_2018-12-13	2.33
162 TRI_2017-04-07	2.32
163 TRI_2018-05-06	2.32
164 TRI_2018-07-20	2.32
165 TRI_2021-04-22	2.30
166 TRI_2021-04-21	2.26
167 TRI_2017-03-16	2.23
168 TRI_2020-07-13	2.23
169 TRI_2018-05-07	2.15
170 TRI_2020-10-17	2.15
171 TRI_2018-01-31	2.09
172 TRI_2017-12-31	2.07
173 TRI_2018-06-20	2.07
174 TRI_2018-12-09	2.07
175 TRI_2021-03-27	2.05
176 TRI_2017-05-03	2.03
177 TRI_2017-10-13	2.03
178 TRI_2018-07-05	1.98
179 TRI_2018-07-31	1.96
180 TRI_2017-09-21	1.89
181 TRI_2021-02-14	1.82
182 TRI_2018-09-04	1.81
183 TRI_2020-11-18	1.81
184 TRI_2020-01-06	1.80
185 TRI_2018-03-29	1.79
186 TRI_2020-07-31	1.77
187 TRI_2020-07-19	1.70
188 TRI_2021-06-22	1.64
189 TRI_2020-12-27	1.62
190 TRI_2021-08-03	1.62
191 TRI_2021-10-15	1.59
192 TRI_2017-09-22	1.55
193 TRI_2017-07-08	1.53
194 TRI_2018-03-02	1.53
195 TRI_2020-05-12	1.53
196 TRI_2017-11-25	1.50
197 TRI_2020-12-08	1.47
198 TRI_2017-07-11	1.45
199 TRI_2018-03-06	1.45
200 TRI_2018-12-30	1.45
201 TRI_2020-12-07	1.40
202 TRI_2017-08-27	1.39
203 TRI_2018-09-15	1.39
204 TRI_2021-12-28	1.39
205 TRI_2020-01-12	1.38
206 TRI_2021-02-09	1.35
207 TRI_2020-12-24	1.30
208 TRI_2018-02-15	1.29
209 TRI_2021-07-26	1.28
210 TRI_2021-10-14	1.27
211 TRI_2017-07-04	1.25
212 TRI_2021-11-01	1.25
213 TRI_2017-03-22	1.23
214 TRI_2018-08-28	1.21
215 TRI_2018-09-13	1.20
216 TRI_2017-04-01	1.14
217 TRI_2018-09-06	1.14
218 TRI_2018-02-16	1.11
219 TRI_2017-12-19	1.09
220 TRI_2017-10-02	1.06
221 TRI_2018-08-01	1.06
222 TRI_2020-03-01	1.05
223 TRI_2021-03-11	1.05
224 TRI_2018-08-17	1.04
225 TRI_2020-01-10	1.04
226 TRI_2017-04-04	1.03
227 TRI_2018-10-29	1.02
228 TRI_2018-02-27	1.01
229 TRI_2021-06-29	1.01
230 TRI_2018-11-19	1.00
231 TRI_2020-10-28	1.00
232 TRI_2021-09-23	0.98
233 TRI_2020-07-27	0.97
234 TRI_2017-04-23	0.94
235 TRI_2021-07-07	0.94
236 TRI_2017-05-06	0.93
237 TRI_2020-07-10	0.91
238 TRI_2017-08-31	0.90
239 TRI_2018-02-06	0.89
240 TRI_2021-08-12	0.88
241 TRI_2020-02-27	0.87
242 TRI_2018-06-01	0.86
243 TRI_2020-03-12	0.85
244 TRI_2020-07-26	0.85
245 TRI_2018-03-24	0.84
246 TRI_2018-12-19	0.82
247 TRI_2020-03-08	0.81
248 TRI_2017-05-21	0.78
249 TRI_2021-09-05	0.77
250 TRI_2021-03-26	0.76
251 TRI_2018-04-11	0.75
252 TRI_2021-06-14	0.75
253 TRI_2017-06-11	0.72
254 TRI_2018-01-23	0.72
255 TRI_2020-03-25	0.72
256 TRI_2018-06-11	0.69
257 TRI_2018-11-25	0.69
258 TRI_2017-05-23	0.68
259 TRI_2018-05-15	0.67
260 TRI_2018-09-27	0.66
261 TRI_2017-11-15	0.60
262 TRI_2017-04-22	0.59
263 TRI_2017-06-10	0.59
264 TRI_2018-09-18	0.59
265 TRI_2017-10-11	0.58
266 TRI_2020-04-21	0.58
267 TRI_2017-08-08	0.57
268 TRI_2018-03-05	0.57
269 TRI_2020-07-01	0.57
270 TRI_2017-07-29	0.53
271 TRI_2017-06-13	0.51
272 TRI_2017-05-14	0.49
273 TRI_2020-01-02	0.48
274 TRI_2020-05-29	0.47
275 TRI_2021-07-10	0.47
276 TRI_2017-06-06	0.46
277 TRI_2021-02-08	0.45
278 TRI_2021-07-28	0.45
279 TRI_2017-03-02	0.44
280 TRI_2017-06-01	0.44
281 TRI_2017-07-07	0.44
282 TRI_2021-10-24	0.42
283 TRI_2018-08-22	0.40
284 TRI_2021-07-04	0.40
285 TRI_2018-06-26	0.39
286 TRI_2017-12-08	0.38
287 TRI_2020-10-18	0.38
288 TRI_2018-08-21	0.36
289 TRI_2017-02-25	0.35
290 TRI_2020-10-14	0.35
291 TRI_2021-01-03	0.34
292 TRI_2021-08-04	0.34
293 TRI_2017-09-20	0.33
294 TRI_2017-09-28	0.33
295 TRI_2020-04-12	0.33
296 TRI_2021-08-30	0.33
297 TRI_2018-09-20	0.32
298 TRI_2020-09-07	0.32
299 TRI_2020-09-24	0.32
300 TRI_2021-03-31	0.31
301 TRI_2021-07-22	0.30
302 TRI_2021-09-10	0.29
303 TRI_2018-04-26	0.28
304 TRI_2021-05-07	0.28
305 TRI_2017-06-02	0.27
306 TRI_2018-04-12	0.27
307 TRI_2021-03-21	0.27
308 TRI_2020-03-23	0.26
309 TRI_2020-07-29	0.26
310 TRI_2017-06-08	0.25
311 TRI_2020-01-26	0.24
312 TRI_2020-08-05	0.23
313 TRI_2018-11-04	0.22
314 TRI_2020-03-28	0.22
315 TRI_2021-06-13	0.22
316 TRI_2021-08-31	0.22
317 TRI_2017-06-25	0.21
318 TRI_2017-06-30	0.21
319 TRI_2017-07-02	0.21
320 TRI_2020-03-21	0.21
321 TRI_2018-05-14	0.20
322 TRI_2018-06-03	0.20
323 TRI_2017-09-09	0.19
324 TRI_2017-12-07	0.16
325 TRI_2021-08-16	0.15
326 TRI_2021-12-20	0.15
327 TRI_2018-10-22	0.14
328 TRI_2017-04-08	0.13
329 TRI_2018-12-16	0.11
330 TRI_2017-05-24	0.10
331 TRI_2018-05-09	0.10
332 TRI_2017-07-28	0.09
333 TRI_2018-05-21	0.09
334 TRI_2020-07-28	0.09
335 TRI_2017-03-19	0.08
336 TRI_2020-05-21	0.08
337 TRI_2017-01-01	0.00
338 TRI_2017-01-02	0.00
339 TRI_2017-01-03	0.00
340 TRI_2017-01-04	0.00

Rank, NPP code, date

mSv

1 TRI_2018-08-13

44.69

31.39

27.50

26.49

21.93

21.40

21.20

20.30

17.41

17.08

17.07

16.99

16.95

16.77

16.75

14.77

14.63

14.32

13.90

13.53

13.49

12.92

12.52

12.46

12.31

12.08

12.02

11.70

11.57

11.43

10.84

10.79

10.53

10.35

10.29

10.06

9.63

9.45

9.17

9.13

8.99

8.91

8.73

8.43

8.39

8.31

8.07

7.83

7.82

7.82

7.62

7.61

7.45

7.38

7.24

6.99

6.99

6.95

6.88

6.54

6.49

6.46

6.43

6.34

6.29

6.27

6.12

6.07

5.86

5.81

5.72

5.49

5.44

5.43

5.41

5.38

5.34

5.25

5.10

5.06

5.04

4.97

4.95

4.95

4.92

4.88

4.84

4.84

4.72

4.71

4.68

4.67

4.53

4.51

4.48

4.45

4.40

4.39

4.38

4.21

4.21

4.19

4.08

4.08

4.04

4.03

4.02

3.99

3.91

3.77

3.76

3.72

3.69

3.69

3.63

3.62

3.57

3.54

3.49

3.49

3.37

3.30

3.27

3.27

3.27

3.20

3.16

3.02

3.00

3.00

2.98

2.97

2.94

2.93

2.85

2.78

2.76

2.75

2.72

2.72

2.69

2.68

2.67

2.67

2.63

2.63

2.62

2.61

2.61

2.60

2.58

2.57

2.53

2.50

2.48

2.48

2.40

2.39

2.38

2.34

2.33

2.32

2.32

2.32

2.30

2.26

2.23

2.23

2.15

2.15

2.09

2.07

2.07

2.07

2.05

2.03

2.03

1.98

1.96

1.89

1.82

1.81

1.81

1.80

1.79

1.77

1.70

1.64

1.62

1.62

1.59

1.55

1.53

1.53

1.53

1.50

1.47

1.45

1.45

1.45

1.40

1.39

1.39

1.39

1.38

1.35

1.30

1.29

1.28

1.27

1.25

1.25

1.23

1.21

1.20

1.14

1.14

1.11

1.09

1.06

1.06

1.05

1.05

1.04

1.04

1.03

1.02

1.01

1.01

1.00

1.00

0.98

0.97

0.94

0.94

0.93

0.91

0.90

0.89

0.88

0.87

0.86

0.85

0.85

0.84

0.82

0.81

0.78

0.77

0.76

0.75

0.75

0.72

0.72

0.72

0.69

0.69

0.68

0.67

0.66

0.60

0.59

0.59

0.59

0.58

0.58

0.57

0.57

0.57

0.53

0.51

0.49

0.48

0.47

0.47

0.46

0.45

0.45

0.44

0.44

0.44

0.42

0.40

0.40

0.39

0.38

0.38

0.36

0.35

0.35

0.34

0.34

0.33

0.33

0.33

0.33

0.32

0.32

0.32

0.31

0.30

0.29

0.28

0.28

0.27

0.27

0.27

0.26

0.26

0.25

0.24

0.23

0.22

0.22

0.22

0.22

0.21

0.21

0.21

0.21

0.20

0.20

0.19

0.16

0.15

0.15

0.14

0.13

0.11

0.10

0.10

0.09

0.09

0.09

0.08

0.08

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 :

Digne (123 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)