Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2017-05-30	56.82
2 TRI_2020-05-11	36.00
3 TRI_2017-09-29	27.14
4 TRI_2021-08-07	26.33
5 TRI_2017-06-20	26.23
6 TRI_2020-03-19	23.49
7 TRI_2020-06-11	23.15
8 TRI_2020-03-12	21.56
9 TRI_2020-04-01	20.69
10 TRI_2021-11-02	20.56
11 TRI_2018-04-27	20.03
12 TRI_2020-04-11	20.00
13 TRI_2020-09-23	19.34
14 TRI_2021-03-04	18.99
15 TRI_2018-08-13	18.92
16 TRI_2017-07-08	18.72
17 TRI_2021-04-24	18.60
18 TRI_2018-05-08	17.54
19 TRI_2018-09-30	15.61
20 TRI_2021-05-31	15.27
21 TRI_2020-08-19	14.69
22 TRI_2020-07-27	14.44
23 TRI_2020-10-05	14.32
24 TRI_2020-05-05	14.02
25 TRI_2020-06-04	13.60
26 TRI_2018-07-27	13.57
27 TRI_2018-12-02	13.55
28 TRI_2021-06-16	12.47
29 TRI_2018-05-21	11.96
30 TRI_2018-02-01	11.75
31 TRI_2017-05-27	11.53
32 TRI_2021-10-17	11.04
33 TRI_2018-06-07	11.03
34 TRI_2020-03-20	11.01
35 TRI_2017-08-27	10.99
36 TRI_2017-12-15	10.83
37 TRI_2017-06-09	10.30
38 TRI_2017-08-08	10.28
39 TRI_2018-04-19	10.25
40 TRI_2018-01-16	10.23
41 TRI_2021-04-21	10.23
42 TRI_2018-08-29	10.16
43 TRI_2020-09-21	9.70
44 TRI_2021-09-06	9.58
45 TRI_2021-07-27	9.39
46 TRI_2018-11-30	9.31
47 TRI_2021-05-08	9.29
48 TRI_2021-11-27	9.27
49 TRI_2017-12-14	9.16
50 TRI_2021-04-01	8.63
51 TRI_2017-09-14	8.62
52 TRI_2020-03-24	8.62
53 TRI_2017-04-01	8.61
54 TRI_2017-06-28	8.59
55 TRI_2021-05-06	8.56
56 TRI_2018-06-03	8.45
57 TRI_2018-09-05	8.30
58 TRI_2020-04-30	8.28
59 TRI_2021-03-07	8.25
60 TRI_2021-07-30	8.13
61 TRI_2020-10-04	8.09
62 TRI_2018-03-12	7.97
63 TRI_2018-07-26	7.92
64 TRI_2018-09-18	7.85
65 TRI_2020-07-21	7.67
66 TRI_2017-06-02	7.55
67 TRI_2017-04-09	7.38
68 TRI_2020-06-01	7.34
69 TRI_2018-03-05	7.21
70 TRI_2017-12-12	7.15
71 TRI_2021-02-01	6.63
72 TRI_2017-09-28	6.50
73 TRI_2020-05-31	6.46
74 TRI_2018-05-31	6.44
75 TRI_2017-08-02	6.43
76 TRI_2020-10-31	6.37
77 TRI_2020-09-05	6.34
78 TRI_2020-04-25	6.28
79 TRI_2020-05-22	6.23
80 TRI_2020-11-01	6.23
81 TRI_2018-09-26	6.22
82 TRI_2021-09-13	6.21
83 TRI_2021-11-20	6.21
84 TRI_2020-08-09	6.15
85 TRI_2017-12-08	6.12
86 TRI_2020-06-27	6.11
87 TRI_2021-03-29	6.09
88 TRI_2018-01-18	6.08
89 TRI_2020-05-10	6.08
90 TRI_2021-06-28	6.05
91 TRI_2020-04-10	5.98
92 TRI_2020-04-18	5.96
93 TRI_2020-07-20	5.90
94 TRI_2021-04-25	5.64
95 TRI_2018-05-23	5.61
96 TRI_2021-09-23	5.61
97 TRI_2018-03-03	5.55
98 TRI_2018-09-25	5.36
99 TRI_2018-05-07	5.20
100 TRI_2018-08-16	5.16
101 TRI_2021-02-09	5.02
102 TRI_2017-12-30	4.87
103 TRI_2021-05-16	4.82
104 TRI_2018-12-13	4.80
105 TRI_2021-03-31	4.75
106 TRI_2018-04-20	4.69
107 TRI_2020-08-28	4.67
108 TRI_2017-09-30	4.59
109 TRI_2021-06-22	4.49
110 TRI_2021-02-14	4.43
111 TRI_2017-06-30	4.31
112 TRI_2018-03-02	4.28
113 TRI_2017-10-31	4.27
114 TRI_2020-08-13	4.22
115 TRI_2018-10-05	4.17
116 TRI_2021-08-21	4.17
117 TRI_2018-05-24	4.14
118 TRI_2017-09-26	4.05
119 TRI_2020-11-18	4.05
120 TRI_2018-06-02	3.98
121 TRI_2021-10-21	3.92
122 TRI_2017-07-21	3.90
123 TRI_2017-08-23	3.90
124 TRI_2020-01-13	3.69
125 TRI_2021-04-30	3.65
126 TRI_2020-03-18	3.62
127 TRI_2021-12-28	3.61
128 TRI_2018-11-24	3.59
129 TRI_2018-07-01	3.51
130 TRI_2017-03-22	3.48
131 TRI_2020-07-28	3.48
132 TRI_2017-06-22	3.45
133 TRI_2020-05-01	3.41
134 TRI_2021-03-02	3.40
135 TRI_2018-11-25	3.39
136 TRI_2020-06-24	3.36
137 TRI_2018-04-21	3.32
138 TRI_2020-03-17	3.30
139 TRI_2021-05-15	3.29
140 TRI_2018-06-04	3.17
141 TRI_2017-07-07	3.16
142 TRI_2020-06-25	3.10
143 TRI_2017-02-03	3.00
144 TRI_2021-06-23	3.00
145 TRI_2021-05-24	2.91
146 TRI_2020-08-10	2.89
147 TRI_2021-03-30	2.88
148 TRI_2017-01-25	2.86
149 TRI_2017-02-26	2.83
150 TRI_2018-09-21	2.81
151 TRI_2020-07-01	2.80
152 TRI_2017-05-26	2.77
153 TRI_2017-05-02	2.76
154 TRI_2018-08-12	2.69
155 TRI_2020-08-11	2.68
156 TRI_2017-08-22	2.67
157 TRI_2021-09-07	2.66
158 TRI_2018-07-02	2.63
159 TRI_2021-04-27	2.59
160 TRI_2020-10-18	2.58
161 TRI_2021-05-11	2.58
162 TRI_2018-03-06	2.57
163 TRI_2017-08-18	2.56
164 TRI_2021-04-29	2.55
165 TRI_2020-02-27	2.54
166 TRI_2018-05-06	2.50
167 TRI_2017-02-23	2.38
168 TRI_2021-07-06	2.35
169 TRI_2017-08-28	2.30
170 TRI_2020-12-31	2.30
171 TRI_2018-05-30	2.29
172 TRI_2017-01-03	2.28
173 TRI_2018-06-29	2.28
174 TRI_2020-08-16	2.26
175 TRI_2017-12-07	2.24
176 TRI_2017-11-25	2.23
177 TRI_2017-10-11	2.21
178 TRI_2017-12-06	2.19
179 TRI_2018-09-12	2.19
180 TRI_2017-09-27	2.18
181 TRI_2018-03-24	2.17
182 TRI_2020-01-12	2.11
183 TRI_2020-09-16	2.10
184 TRI_2021-06-03	2.10
185 TRI_2018-04-22	2.07
186 TRI_2018-07-20	2.04
187 TRI_2021-06-17	2.00
188 TRI_2017-06-29	1.99
189 TRI_2020-09-15	1.99
190 TRI_2020-10-06	1.98
191 TRI_2020-04-26	1.96
192 TRI_2017-07-20	1.92
193 TRI_2018-09-04	1.92
194 TRI_2017-07-17	1.89
195 TRI_2018-07-14	1.87
196 TRI_2021-09-05	1.86
197 TRI_2020-04-22	1.81
198 TRI_2017-10-14	1.80
199 TRI_2021-01-02	1.80
200 TRI_2020-02-06	1.78
201 TRI_2020-07-29	1.76
202 TRI_2018-07-15	1.73
203 TRI_2020-03-01	1.72
204 TRI_2018-09-10	1.70
205 TRI_2017-12-31	1.69
206 TRI_2017-09-09	1.64
207 TRI_2020-03-23	1.64
208 TRI_2020-04-12	1.64
209 TRI_2018-10-06	1.61
210 TRI_2021-09-12	1.60
211 TRI_2021-12-25	1.58
212 TRI_2021-01-19	1.57
213 TRI_2021-06-26	1.56
214 TRI_2020-02-10	1.55
215 TRI_2018-06-06	1.50
216 TRI_2018-12-19	1.45
217 TRI_2018-06-30	1.41
218 TRI_2018-04-12	1.40
219 TRI_2021-12-01	1.40
220 TRI_2018-09-15	1.34
221 TRI_2021-04-23	1.34
222 TRI_2018-03-14	1.32
223 TRI_2020-09-14	1.31
224 TRI_2017-04-07	1.30
225 TRI_2017-06-03	1.29
226 TRI_2021-05-05	1.28
227 TRI_2020-01-03	1.27
228 TRI_2020-02-13	1.27
229 TRI_2018-09-11	1.26
230 TRI_2020-01-06	1.26
231 TRI_2017-06-11	1.24
232 TRI_2017-05-04	1.23
233 TRI_2017-07-29	1.22
234 TRI_2020-03-16	1.21
235 TRI_2017-08-13	1.20
236 TRI_2021-11-03	1.20
237 TRI_2020-09-20	1.19
238 TRI_2018-02-27	1.18
239 TRI_2018-10-29	1.17
240 TRI_2018-01-10	1.16
241 TRI_2020-09-03	1.12
242 TRI_2018-05-19	1.10
243 TRI_2020-05-04	1.10
244 TRI_2017-07-04	1.08
245 TRI_2018-10-26	1.08
246 TRI_2017-06-27	1.04
247 TRI_2020-12-29	1.03
248 TRI_2021-10-18	1.03
249 TRI_2017-03-02	0.99
250 TRI_2020-01-28	0.97
251 TRI_2020-12-07	0.97
252 TRI_2018-02-16	0.95
253 TRI_2021-02-25	0.94
254 TRI_2017-07-03	0.93
255 TRI_2018-06-05	0.91
256 TRI_2018-09-17	0.91
257 TRI_2021-03-11	0.88
258 TRI_2021-07-26	0.88
259 TRI_2021-05-04	0.87
260 TRI_2017-04-08	0.86
261 TRI_2018-08-15	0.86
262 TRI_2018-07-04	0.85
263 TRI_2017-02-05	0.84
264 TRI_2018-10-27	0.84
265 TRI_2021-07-29	0.84
266 TRI_2020-12-28	0.83
267 TRI_2021-08-13	0.83
268 TRI_2020-05-13	0.82
269 TRI_2018-01-31	0.81
270 TRI_2018-01-08	0.79
271 TRI_2018-06-20	0.78
272 TRI_2021-02-08	0.78
273 TRI_2021-10-24	0.77
274 TRI_2020-07-31	0.73
275 TRI_2018-07-03	0.70
276 TRI_2018-06-09	0.68
277 TRI_2021-04-08	0.66
278 TRI_2021-10-14	0.65
279 TRI_2018-08-28	0.64
280 TRI_2018-08-31	0.64
281 TRI_2018-02-05	0.62
282 TRI_2017-08-07	0.61
283 TRI_2018-06-11	0.59
284 TRI_2020-08-07	0.59
285 TRI_2020-08-15	0.59
286 TRI_2017-04-23	0.58
287 TRI_2018-11-19	0.58
288 TRI_2020-09-30	0.58
289 TRI_2021-08-30	0.58
290 TRI_2017-06-08	0.55
291 TRI_2017-10-20	0.55
292 TRI_2020-04-23	0.54
293 TRI_2020-01-26	0.53
294 TRI_2017-08-03	0.50
295 TRI_2020-04-09	0.49
296 TRI_2020-04-24	0.46
297 TRI_2020-06-13	0.46
298 TRI_2017-07-22	0.43
299 TRI_2017-08-31	0.42
300 TRI_2020-04-17	0.41
301 TRI_2017-10-13	0.39
302 TRI_2021-07-12	0.36
303 TRI_2020-06-02	0.35
304 TRI_2021-08-14	0.34
305 TRI_2018-10-28	0.32
306 TRI_2021-12-10	0.31
307 TRI_2018-04-01	0.30
308 TRI_2021-04-20	0.30
309 TRI_2018-04-14	0.27
310 TRI_2017-02-15	0.23
311 TRI_2017-06-10	0.23
312 TRI_2020-04-06	0.23
313 TRI_2021-07-22	0.23
314 TRI_2020-04-16	0.21
315 TRI_2018-05-11	0.20
316 TRI_2017-09-25	0.19
317 TRI_2017-01-02	0.17
318 TRI_2017-05-21	0.17
319 TRI_2017-03-31	0.14
320 TRI_2018-04-26	0.14
321 TRI_2017-03-21	0.13
322 TRI_2021-04-11	0.13
323 TRI_2021-09-09	0.13
324 TRI_2017-06-21	0.09
325 TRI_2017-07-28	0.08
326 TRI_2017-02-25	0.05
327 TRI_2017-01-01	0.00
328 TRI_2017-01-04	0.00
329 TRI_2017-01-05	0.00
330 TRI_2017-01-06	0.00

Rank, NPP code, date

mSv

1 TRI_2017-05-30

56.82

36.00

27.14

26.33

26.23

23.49

23.15

21.56

20.69

20.56

20.03

20.00

19.34

18.99

18.92

18.72

18.60

17.54

15.61

15.27

14.69

14.44

14.32

14.02

13.60

13.57

13.55

12.47

11.96

11.75

11.53

11.04

11.03

11.01

10.99

10.83

10.30

10.28

10.25

10.23

10.23

10.16

9.70

9.58

9.39

9.31

9.29

9.27

9.16

8.63

8.62

8.62

8.61

8.59

8.56

8.45

8.30

8.28

8.25

8.13

8.09

7.97

7.92

7.85

7.67

7.55

7.38

7.34

7.21

7.15

6.63

6.50

6.46

6.44

6.43

6.37

6.34

6.28

6.23

6.23

6.22

6.21

6.21

6.15

6.12

6.11

6.09

6.08

6.08

6.05

5.98

5.96

5.90

5.64

5.61

5.61

5.55

5.36

5.20

5.16

5.02

4.87

4.82

4.80

4.75

4.69

4.67

4.59

4.49

4.43

4.31

4.28

4.27

4.22

4.17

4.17

4.14

4.05

4.05

3.98

3.92

3.90

3.90

3.69

3.65

3.62

3.61

3.59

3.51

3.48

3.48

3.45

3.41

3.40

3.39

3.36

3.32

3.30

3.29

3.17

3.16

3.10

3.00

3.00

2.91

2.89

2.88

2.86

2.83

2.81

2.80

2.77

2.76

2.69

2.68

2.67

2.66

2.63

2.59

2.58

2.58

2.57

2.56

2.55

2.54

2.50

2.38

2.35

2.30

2.30

2.29

2.28

2.28

2.26

2.24

2.23

2.21

2.19

2.19

2.18

2.17

2.11

2.10

2.10

2.07

2.04

2.00

1.99

1.99

1.98

1.96

1.92

1.92

1.89

1.87

1.86

1.81

1.80

1.80

1.78

1.76

1.73

1.72

1.70

1.69

1.64

1.64

1.64

1.61

1.60

1.58

1.57

1.56

1.55

1.50

1.45

1.41

1.40

1.40

1.34

1.34

1.32

1.31

1.30

1.29

1.28

1.27

1.27

1.26

1.26

1.24

1.23

1.22

1.21

1.20

1.20

1.19

1.18

1.17

1.16

1.12

1.10

1.10

1.08

1.08

1.04

1.03

1.03

0.99

0.97

0.97

0.95

0.94

0.93

0.91

0.91

0.88

0.88

0.87

0.86

0.86

0.85

0.84

0.84

0.84

0.83

0.83

0.82

0.81

0.79

0.78

0.78

0.77

0.73

0.70

0.68

0.66

0.65

0.64

0.64

0.62

0.61

0.59

0.59

0.59

0.58

0.58

0.58

0.58

0.55

0.55

0.54

0.53

0.50

0.49

0.46

0.46

0.43

0.42

0.41

0.39

0.36

0.35

0.34

0.32

0.31

0.30

0.30

0.27

0.23

0.23

0.23

0.23

0.21

0.20

0.19

0.17

0.17

0.14

0.14

0.13

0.13

0.13

0.09

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 :

Grenoble (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)