Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2017-05-04	165.60
2 TRI_2017-07-07	144.71
3 TRI_2017-06-20	126.13
4 TRI_2017-04-09	107.26
5 TRI_2017-06-09	105.03
6 TRI_2017-05-27	97.07
7 TRI_2018-05-08	45.26
8 TRI_2018-09-18	23.89
9 TRI_2021-06-03	22.76
10 TRI_2018-07-02	22.42
11 TRI_2017-02-26	19.81
12 TRI_2018-12-02	19.05
13 TRI_2018-04-22	18.12
14 TRI_2017-08-08	16.06
15 TRI_2017-06-08	15.43
16 TRI_2020-04-01	15.04
17 TRI_2020-06-01	14.90
18 TRI_2020-07-21	14.64
19 TRI_2020-07-01	13.82
20 TRI_2020-05-09	13.72
21 TRI_2020-05-05	13.42
22 TRI_2020-08-10	13.12
23 TRI_2021-08-07	12.71
24 TRI_2021-11-27	12.49
25 TRI_2018-02-01	12.35
26 TRI_2020-06-03	12.23
27 TRI_2018-11-30	12.21
28 TRI_2017-10-20	12.11
29 TRI_2018-08-13	11.86
30 TRI_2017-03-16	11.49
31 TRI_2017-09-14	10.73
32 TRI_2017-06-02	10.41
33 TRI_2021-07-12	10.41
34 TRI_2017-10-11	9.77
35 TRI_2017-08-27	9.72
36 TRI_2020-03-19	9.58
37 TRI_2017-04-01	9.55
38 TRI_2018-09-12	9.44
39 TRI_2021-07-06	9.36
40 TRI_2020-10-05	8.92
41 TRI_2017-06-06	8.80
42 TRI_2018-07-27	8.80
43 TRI_2017-09-28	8.68
44 TRI_2021-03-04	8.61
45 TRI_2017-01-02	8.54
46 TRI_2018-07-01	8.54
47 TRI_2018-01-16	8.46
48 TRI_2020-07-28	8.25
49 TRI_2021-09-13	8.13
50 TRI_2021-06-16	8.12
51 TRI_2020-06-04	7.98
52 TRI_2020-06-25	7.78
53 TRI_2021-06-22	7.63
54 TRI_2020-09-05	7.62
55 TRI_2017-05-03	7.56
56 TRI_2020-04-11	7.42
57 TRI_2017-12-08	7.17
58 TRI_2021-04-11	7.17
59 TRI_2018-05-31	6.98
60 TRI_2018-10-06	6.83
61 TRI_2020-06-27	6.81
62 TRI_2017-06-03	6.78
63 TRI_2018-06-05	6.77
64 TRI_2017-09-29	6.74
65 TRI_2017-09-09	6.73
66 TRI_2021-05-08	6.71
67 TRI_2018-08-29	6.67
68 TRI_2020-09-21	6.52
69 TRI_2021-11-02	6.39
70 TRI_2020-08-16	6.32
71 TRI_2021-03-07	6.25
72 TRI_2018-10-04	6.23
73 TRI_2017-02-15	6.07
74 TRI_2017-12-14	5.98
75 TRI_2020-04-12	5.91
76 TRI_2020-10-04	5.88
77 TRI_2017-06-30	5.81
78 TRI_2020-04-17	5.45
79 TRI_2018-05-07	5.44
80 TRI_2017-03-05	5.25
81 TRI_2017-08-03	5.16
82 TRI_2018-06-03	5.10
83 TRI_2017-06-29	5.09
84 TRI_2017-06-18	5.03
85 TRI_2018-03-02	5.00
86 TRI_2020-09-04	4.98
87 TRI_2017-12-30	4.76
88 TRI_2018-04-20	4.74
89 TRI_2021-05-24	4.74
90 TRI_2017-09-27	4.72
91 TRI_2020-08-09	4.69
92 TRI_2020-04-30	4.55
93 TRI_2020-01-10	4.54
94 TRI_2017-03-15	4.53
95 TRI_2017-12-15	4.52
96 TRI_2017-02-03	4.50
97 TRI_2018-04-21	4.34
98 TRI_2017-11-02	4.28
99 TRI_2017-06-22	4.24
100 TRI_2017-08-23	4.13
101 TRI_2017-06-01	4.11
102 TRI_2017-07-17	4.07
103 TRI_2018-09-17	4.06
104 TRI_2017-05-26	4.04
105 TRI_2020-05-10	4.04
106 TRI_2021-02-08	3.97
107 TRI_2021-02-01	3.93
108 TRI_2017-02-23	3.87
109 TRI_2018-01-18	3.81
110 TRI_2021-10-21	3.81
111 TRI_2017-08-02	3.76
112 TRI_2020-12-31	3.76
113 TRI_2018-12-13	3.69
114 TRI_2018-06-30	3.64
115 TRI_2018-08-08	3.63
116 TRI_2021-05-31	3.54
117 TRI_2018-05-12	3.51
118 TRI_2020-09-20	3.43
119 TRI_2021-05-16	3.31
120 TRI_2018-07-26	3.24
121 TRI_2017-09-26	3.21
122 TRI_2020-09-14	3.19
123 TRI_2021-06-04	3.05
124 TRI_2018-08-16	3.01
125 TRI_2017-06-19	2.95
126 TRI_2018-04-12	2.84
127 TRI_2020-08-19	2.76
128 TRI_2020-09-23	2.76
129 TRI_2020-11-09	2.75
130 TRI_2020-05-11	2.72
131 TRI_2021-03-31	2.71
132 TRI_2017-02-28	2.69
133 TRI_2017-12-12	2.67
134 TRI_2018-06-04	2.66
135 TRI_2017-06-27	2.65
136 TRI_2021-04-24	2.62
137 TRI_2020-01-28	2.61
138 TRI_2021-02-09	2.59
139 TRI_2021-09-23	2.52
140 TRI_2020-07-29	2.49
141 TRI_2017-07-22	2.48
142 TRI_2021-02-19	2.40
143 TRI_2018-03-12	2.38
144 TRI_2018-06-11	2.34
145 TRI_2021-05-04	2.28
146 TRI_2017-03-22	2.23
147 TRI_2017-01-30	2.22
148 TRI_2017-02-05	2.22
149 TRI_2017-10-21	2.16
150 TRI_2017-08-22	2.11
151 TRI_2017-04-25	2.06
152 TRI_2018-03-03	2.06
153 TRI_2021-04-27	2.04
154 TRI_2021-10-04	2.04
155 TRI_2018-05-06	2.02
156 TRI_2017-07-08	2.01
157 TRI_2020-10-23	2.00
158 TRI_2017-06-21	1.97
159 TRI_2018-05-21	1.97
160 TRI_2021-12-28	1.95
161 TRI_2018-09-15	1.94
162 TRI_2017-08-07	1.93
163 TRI_2020-04-16	1.92
164 TRI_2017-07-04	1.91
165 TRI_2018-12-21	1.91
166 TRI_2017-08-29	1.89
167 TRI_2020-01-26	1.86
168 TRI_2021-10-01	1.84
169 TRI_2017-05-28	1.83
170 TRI_2018-09-05	1.83
171 TRI_2020-05-01	1.81
172 TRI_2017-06-28	1.79
173 TRI_2020-08-15	1.78
174 TRI_2020-03-18	1.74
175 TRI_2018-07-14	1.71
176 TRI_2020-12-08	1.70
177 TRI_2017-07-03	1.67
178 TRI_2017-07-21	1.66
179 TRI_2018-03-24	1.65
180 TRI_2020-10-25	1.64
181 TRI_2021-01-03	1.64
182 TRI_2018-05-23	1.61
183 TRI_2018-01-10	1.59
184 TRI_2017-11-01	1.58
185 TRI_2020-07-31	1.58
186 TRI_2020-01-12	1.54
187 TRI_2020-06-02	1.54
188 TRI_2020-07-27	1.53
189 TRI_2017-04-24	1.50
190 TRI_2018-02-17	1.50
191 TRI_2018-09-30	1.50
192 TRI_2020-06-24	1.49
193 TRI_2020-06-11	1.48
194 TRI_2020-11-02	1.47
195 TRI_2017-06-11	1.45
196 TRI_2020-02-27	1.45
197 TRI_2021-05-15	1.43
198 TRI_2020-04-06	1.42
199 TRI_2021-12-27	1.41
200 TRI_2018-06-29	1.40
201 TRI_2018-04-19	1.37
202 TRI_2020-08-13	1.36
203 TRI_2020-12-23	1.36
204 TRI_2017-07-20	1.35
205 TRI_2021-07-04	1.35
206 TRI_2018-11-13	1.34
207 TRI_2020-01-06	1.34
208 TRI_2021-03-11	1.32
209 TRI_2017-09-30	1.31
210 TRI_2020-12-29	1.31
211 TRI_2021-05-06	1.31
212 TRI_2018-09-10	1.30
213 TRI_2020-08-11	1.28
214 TRI_2018-04-08	1.27
215 TRI_2021-02-14	1.27
216 TRI_2020-03-16	1.26
217 TRI_2020-05-31	1.26
218 TRI_2017-07-29	1.25
219 TRI_2018-09-21	1.25
220 TRI_2018-10-12	1.25
221 TRI_2017-08-13	1.24
222 TRI_2018-01-05	1.23
223 TRI_2020-02-13	1.23
224 TRI_2020-04-18	1.23
225 TRI_2021-09-06	1.23
226 TRI_2021-10-18	1.23
227 TRI_2018-07-03	1.20
228 TRI_2017-04-23	1.19
229 TRI_2021-07-24	1.16
230 TRI_2017-04-08	1.14
231 TRI_2017-11-28	1.13
232 TRI_2018-12-19	1.12
233 TRI_2021-06-28	1.11
234 TRI_2021-07-27	1.10
235 TRI_2017-05-29	1.09
236 TRI_2017-08-28	1.09
237 TRI_2017-09-25	1.08
238 TRI_2021-05-11	1.06
239 TRI_2018-02-05	1.05
240 TRI_2017-12-31	1.04
241 TRI_2020-11-18	1.03
242 TRI_2021-01-22	1.03
243 TRI_2020-08-21	1.01
244 TRI_2021-06-18	1.00
245 TRI_2020-01-13	0.99
246 TRI_2018-10-28	0.96
247 TRI_2020-09-03	0.96
248 TRI_2018-08-28	0.95
249 TRI_2020-03-01	0.95
250 TRI_2020-10-06	0.91
251 TRI_2021-08-14	0.91
252 TRI_2018-02-16	0.90
253 TRI_2020-10-18	0.90
254 TRI_2017-10-13	0.87
255 TRI_2018-10-05	0.87
256 TRI_2020-09-24	0.87
257 TRI_2018-03-05	0.86
258 TRI_2017-08-15	0.83
259 TRI_2017-12-10	0.83
260 TRI_2017-08-24	0.82
261 TRI_2017-12-07	0.82
262 TRI_2020-06-13	0.82
263 TRI_2017-12-06	0.81
264 TRI_2020-02-10	0.81
265 TRI_2018-07-28	0.80
266 TRI_2017-05-22	0.79
267 TRI_2017-08-18	0.79
268 TRI_2018-08-06	0.75
269 TRI_2018-08-31	0.73
270 TRI_2021-03-06	0.73
271 TRI_2018-06-02	0.72
272 TRI_2021-06-17	0.69
273 TRI_2017-05-21	0.67
274 TRI_2021-05-07	0.67
275 TRI_2018-08-12	0.66
276 TRI_2018-09-25	0.66
277 TRI_2018-01-31	0.64
278 TRI_2017-03-06	0.63
279 TRI_2021-09-07	0.63
280 TRI_2017-11-25	0.62
281 TRI_2017-05-06	0.61
282 TRI_2018-04-14	0.61
283 TRI_2018-10-30	0.61
284 TRI_2018-01-15	0.60
285 TRI_2018-02-15	0.60
286 TRI_2021-02-15	0.60
287 TRI_2021-04-25	0.60
288 TRI_2021-07-03	0.59
289 TRI_2021-02-25	0.58
290 TRI_2017-03-31	0.56
291 TRI_2021-03-30	0.56
292 TRI_2021-12-25	0.56
293 TRI_2018-04-27	0.54
294 TRI_2020-12-05	0.54
295 TRI_2021-04-29	0.54
296 TRI_2018-06-06	0.52
297 TRI_2020-05-12	0.49
298 TRI_2017-07-10	0.47
299 TRI_2020-12-07	0.47
300 TRI_2020-04-10	0.46
301 TRI_2020-02-16	0.43
302 TRI_2020-05-04	0.43
303 TRI_2021-04-23	0.43
304 TRI_2018-08-15	0.42
305 TRI_2020-04-22	0.42
306 TRI_2020-02-15	0.40
307 TRI_2017-01-25	0.39
308 TRI_2018-09-16	0.39
309 TRI_2021-09-24	0.37
310 TRI_2017-07-30	0.36
311 TRI_2021-04-08	0.36
312 TRI_2018-11-21	0.34
313 TRI_2020-05-08	0.34
314 TRI_2021-06-26	0.34
315 TRI_2017-10-31	0.33
316 TRI_2018-09-28	0.33
317 TRI_2020-08-08	0.33
318 TRI_2021-05-21	0.33
319 TRI_2020-07-30	0.32
320 TRI_2021-09-12	0.31
321 TRI_2020-09-08	0.30
322 TRI_2018-05-24	0.29
323 TRI_2020-04-26	0.28
324 TRI_2020-01-03	0.26
325 TRI_2018-05-19	0.25
326 TRI_2020-10-31	0.25
327 TRI_2017-06-13	0.23
328 TRI_2018-09-26	0.22
329 TRI_2020-04-09	0.22
330 TRI_2020-05-13	0.21
331 TRI_2020-06-26	0.19
332 TRI_2021-10-24	0.16
333 TRI_2017-07-28	0.13
334 TRI_2020-07-19	0.12
335 TRI_2017-05-30	0.11
336 TRI_2018-07-04	0.11
337 TRI_2018-09-04	0.10
338 TRI_2021-05-30	0.10
339 TRI_2018-05-30	0.08
340 TRI_2018-09-20	0.08
341 TRI_2018-11-23	0.05
342 TRI_2017-01-01	0.00
343 TRI_2017-01-03	0.00
344 TRI_2017-01-04	0.00
345 TRI_2017-01-05	0.00

Rank, NPP code, date

mSv

1 TRI_2017-05-04

165.60

144.71

126.13

107.26

105.03

97.07

45.26

23.89

22.76

22.42

19.81

19.05

18.12

16.06

15.43

15.04

14.90

14.64

13.82

13.72

13.42

13.12

12.71

12.49

12.35

12.23

12.21

12.11

11.86

11.49

10.73

10.41

10.41

9.77

9.72

9.58

9.55

9.44

9.36

8.92

8.80

8.80

8.68

8.61

8.54

8.54

8.46

8.25

8.13

8.12

7.98

7.78

7.63

7.62

7.56

7.42

7.17

7.17

6.98

6.83

6.81

6.78

6.77

6.74

6.73

6.71

6.67

6.52

6.39

6.32

6.25

6.23

6.07

5.98

5.91

5.88

5.81

5.45

5.44

5.25

5.16

5.10

5.09

5.03

5.00

4.98

4.76

4.74

4.74

4.72

4.69

4.55

4.54

4.53

4.52

4.50

4.34

4.28

4.24

4.13

4.11

4.07

4.06

4.04

4.04

3.97

3.93

3.87

3.81

3.81

3.76

3.76

3.69

3.64

3.63

3.54

3.51

3.43

3.31

3.24

3.21

3.19

3.05

3.01

2.95

2.84

2.76

2.76

2.75

2.72

2.71

2.69

2.67

2.66

2.65

2.62

2.61

2.59

2.52

2.49

2.48

2.40

2.38

2.34

2.28

2.23

2.22

2.22

2.16

2.11

2.06

2.06

2.04

2.04

2.02

2.01

2.00

1.97

1.97

1.95

1.94

1.93

1.92

1.91

1.91

1.89

1.86

1.84

1.83

1.83

1.81

1.79

1.78

1.74

1.71

1.70

1.67

1.66

1.65

1.64

1.64

1.61

1.59

1.58

1.58

1.54

1.54

1.53

1.50

1.50

1.50

1.49

1.48

1.47

1.45

1.45

1.43

1.42

1.41

1.40

1.37

1.36

1.36

1.35

1.35

1.34

1.34

1.32

1.31

1.31

1.31

1.30

1.28

1.27

1.27

1.26

1.26

1.25

1.25

1.25

1.24

1.23

1.23

1.23

1.23

1.23

1.20

1.19

1.16

1.14

1.13

1.12

1.11

1.10

1.09

1.09

1.08

1.06

1.05

1.04

1.03

1.03

1.01

1.00

0.99

0.96

0.96

0.95

0.95

0.91

0.91

0.90

0.90

0.87

0.87

0.87

0.86

0.83

0.83

0.82

0.82

0.82

0.81

0.81

0.80

0.79

0.79

0.75

0.73

0.73

0.72

0.69

0.67

0.67

0.66

0.66

0.64

0.63

0.63

0.62

0.61

0.61

0.61

0.60

0.60

0.60

0.60

0.59

0.58

0.56

0.56

0.56

0.54

0.54

0.54

0.52

0.49

0.47

0.47

0.46

0.43

0.43

0.43

0.42

0.42

0.40

0.39

0.39

0.37

0.36

0.36

0.34

0.34

0.34

0.33

0.33

0.33

0.33

0.32

0.31

0.30

0.29

0.28

0.26

0.25

0.25

0.23

0.22

0.22

0.21

0.19

0.16

0.13

0.12

0.11

0.11

0.10

0.10

0.08

0.08

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 :

Annecy (206 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)