Simulation of a nuclear major accident at the Tricastin NPP

Rank, NPP code, date	mSv
1 TRI_2020-01-30	36.99
2 TRI_2021-06-24	33.36
3 TRI_2020-05-15	29.91
4 TRI_2021-06-29	17.64
5 TRI_2017-11-08	16.12
6 TRI_2021-12-28	16.12
7 TRI_2021-03-25	15.60
8 TRI_2020-05-12	15.29
9 TRI_2020-06-06	14.44
10 TRI_2017-12-24	14.14
11 TRI_2021-08-03	13.54
12 TRI_2021-08-30	12.31
13 TRI_2018-07-19	12.17
14 TRI_2020-08-09	11.78
15 TRI_2020-02-23	11.71
16 TRI_2020-06-18	11.27
17 TRI_2017-06-22	11.21
18 TRI_2017-02-21	10.99
19 TRI_2017-10-08	10.42
20 TRI_2021-05-22	10.22
21 TRI_2020-05-30	9.87
22 TRI_2020-01-01	9.58
23 TRI_2018-01-30	9.17
24 TRI_2021-05-05	8.68
25 TRI_2018-05-14	8.41
26 TRI_2020-07-27	8.21
27 TRI_2020-06-04	8.15
28 TRI_2021-04-08	8.08
29 TRI_2021-02-14	6.73
30 TRI_2017-04-23	6.67
31 TRI_2021-07-02	6.64
32 TRI_2020-07-20	6.46
33 TRI_2018-05-15	6.26
34 TRI_2017-02-20	6.23
35 TRI_2020-05-01	6.10
36 TRI_2020-08-17	6.07
37 TRI_2017-07-03	5.94
38 TRI_2018-03-17	5.91
39 TRI_2020-04-26	5.89
40 TRI_2020-07-22	5.65
41 TRI_2020-06-28	5.64
42 TRI_2021-07-09	5.64
43 TRI_2017-05-03	5.60
44 TRI_2017-02-16	5.55
45 TRI_2017-03-18	5.47
46 TRI_2020-09-30	5.47
47 TRI_2021-02-01	5.47
48 TRI_2021-08-21	5.26
49 TRI_2021-08-15	5.21
50 TRI_2020-02-24	5.18
51 TRI_2020-07-19	5.02
52 TRI_2020-04-24	5.01
53 TRI_2020-06-07	4.94
54 TRI_2017-03-22	4.92
55 TRI_2017-09-13	4.69
56 TRI_2017-03-17	4.63
57 TRI_2020-07-25	4.63
58 TRI_2020-08-14	4.59
59 TRI_2020-05-22	4.56
60 TRI_2020-10-31	4.54
61 TRI_2018-03-14	4.45
62 TRI_2020-05-11	4.45
63 TRI_2018-06-01	4.44
64 TRI_2021-10-21	4.36
65 TRI_2021-03-24	4.27
66 TRI_2020-03-01	4.22
67 TRI_2020-06-13	4.21
68 TRI_2017-06-12	4.19
69 TRI_2020-09-23	4.17
70 TRI_2020-04-23	4.09
71 TRI_2017-09-14	4.06
72 TRI_2018-06-08	4.01
73 TRI_2020-02-13	3.99
74 TRI_2017-04-22	3.96
75 TRI_2021-11-27	3.77
76 TRI_2017-04-07	3.70
77 TRI_2020-06-09	3.68
78 TRI_2020-10-04	3.67
79 TRI_2018-07-12	3.65
80 TRI_2020-10-05	3.65
81 TRI_2017-03-02	3.55
82 TRI_2021-06-05	3.54
83 TRI_2021-07-10	3.51
84 TRI_2020-12-24	3.50
85 TRI_2018-03-02	3.49
86 TRI_2020-12-21	3.40
87 TRI_2020-10-06	3.32
88 TRI_2020-07-08	3.30
89 TRI_2017-03-16	3.28
90 TRI_2017-07-27	3.18
91 TRI_2018-03-28	3.15
92 TRI_2017-09-09	3.13
93 TRI_2021-07-05	3.13
94 TRI_2020-11-01	3.12
95 TRI_2021-12-18	3.11
96 TRI_2020-01-13	3.07
97 TRI_2017-04-13	3.03
98 TRI_2017-07-11	2.98
99 TRI_2021-05-13	2.97
100 TRI_2020-07-30	2.94
101 TRI_2021-08-04	2.93
102 TRI_2021-07-14	2.92
103 TRI_2018-04-24	2.88
104 TRI_2020-04-25	2.88
105 TRI_2021-11-19	2.84
106 TRI_2017-10-02	2.80
107 TRI_2020-02-14	2.80
108 TRI_2021-07-29	2.79
109 TRI_2021-09-12	2.79
110 TRI_2017-06-21	2.78
111 TRI_2017-04-21	2.74
112 TRI_2021-03-27	2.66
113 TRI_2017-07-23	2.64
114 TRI_2020-10-28	2.61
115 TRI_2021-05-16	2.60
116 TRI_2021-05-26	2.60
117 TRI_2021-08-05	2.52
118 TRI_2018-07-14	2.51
119 TRI_2017-05-23	2.47
120 TRI_2021-09-19	2.44
121 TRI_2018-07-18	2.43
122 TRI_2020-12-27	2.41
123 TRI_2021-04-04	2.41
124 TRI_2021-05-06	2.39
125 TRI_2018-01-03	2.37
126 TRI_2021-05-11	2.36
127 TRI_2018-03-12	2.35
128 TRI_2020-01-28	2.29
129 TRI_2020-05-05	2.29
130 TRI_2017-02-19	2.24
131 TRI_2020-01-03	2.24
132 TRI_2018-05-13	2.23
133 TRI_2017-05-19	2.15
134 TRI_2021-09-16	2.09
135 TRI_2021-11-01	2.09
136 TRI_2020-07-21	2.08
137 TRI_2020-06-02	2.06
138 TRI_2017-10-07	2.02
139 TRI_2021-12-31	2.02
140 TRI_2020-08-26	2.00
141 TRI_2017-06-30	1.97
142 TRI_2018-06-20	1.92
143 TRI_2017-06-23	1.91
144 TRI_2017-12-15	1.91
145 TRI_2018-09-21	1.91
146 TRI_2021-06-23	1.91
147 TRI_2021-07-07	1.90
148 TRI_2020-08-28	1.89
149 TRI_2020-08-19	1.88
150 TRI_2018-06-29	1.86
151 TRI_2020-08-18	1.85
152 TRI_2017-10-04	1.84
153 TRI_2020-02-10	1.79
154 TRI_2020-09-05	1.76
155 TRI_2020-09-21	1.74
156 TRI_2017-02-05	1.72
157 TRI_2017-12-06	1.71
158 TRI_2018-07-27	1.69
159 TRI_2020-01-12	1.68
160 TRI_2020-05-04	1.67
161 TRI_2021-07-03	1.66
162 TRI_2020-10-18	1.63
163 TRI_2021-04-05	1.63
164 TRI_2017-03-19	1.62
165 TRI_2017-06-04	1.62
166 TRI_2021-09-18	1.61
167 TRI_2018-09-13	1.60
168 TRI_2021-08-20	1.60
169 TRI_2021-12-10	1.59
170 TRI_2021-08-13	1.55
171 TRI_2020-02-27	1.54
172 TRI_2020-08-25	1.53
173 TRI_2020-08-31	1.52
174 TRI_2018-01-29	1.49
175 TRI_2021-02-09	1.49
176 TRI_2018-04-01	1.47
177 TRI_2017-11-21	1.45
178 TRI_2020-01-02	1.45
179 TRI_2021-10-04	1.44
180 TRI_2021-05-25	1.41
181 TRI_2017-10-25	1.40
182 TRI_2021-06-22	1.40
183 TRI_2017-07-28	1.39
184 TRI_2017-06-25	1.36
185 TRI_2021-04-19	1.36
186 TRI_2020-11-18	1.35
187 TRI_2017-08-23	1.32
188 TRI_2017-12-14	1.30
189 TRI_2020-04-30	1.30
190 TRI_2017-09-20	1.28
191 TRI_2020-03-11	1.27
192 TRI_2021-06-30	1.25
193 TRI_2017-10-10	1.24
194 TRI_2018-03-03	1.24
195 TRI_2021-03-11	1.23
196 TRI_2020-09-24	1.22
197 TRI_2021-09-26	1.20
198 TRI_2020-07-26	1.19
199 TRI_2017-01-12	1.18
200 TRI_2020-07-10	1.13
201 TRI_2017-11-20	1.11
202 TRI_2021-02-08	1.11
203 TRI_2017-08-07	1.10
204 TRI_2021-05-15	1.10
205 TRI_2020-08-08	1.09
206 TRI_2021-08-06	1.09
207 TRI_2017-10-28	1.08
208 TRI_2018-04-12	1.08
209 TRI_2018-10-28	1.08
210 TRI_2017-09-17	1.06
211 TRI_2021-07-19	1.05
212 TRI_2017-12-30	1.04
213 TRI_2018-09-05	1.04
214 TRI_2021-05-08	1.03
215 TRI_2018-05-11	1.00
216 TRI_2018-06-07	1.00
217 TRI_2017-06-20	0.99
218 TRI_2020-01-26	0.97
219 TRI_2021-03-07	0.97
220 TRI_2018-08-23	0.96
221 TRI_2017-06-09	0.95
222 TRI_2021-08-08	0.91
223 TRI_2021-02-15	0.89
224 TRI_2018-01-10	0.88
225 TRI_2020-07-01	0.88
226 TRI_2018-05-22	0.85
227 TRI_2021-05-31	0.84
228 TRI_2018-09-20	0.82
229 TRI_2021-02-17	0.81
230 TRI_2020-03-12	0.79
231 TRI_2020-06-01	0.75
232 TRI_2017-04-10	0.74
233 TRI_2017-06-24	0.73
234 TRI_2017-11-30	0.73
235 TRI_2021-11-04	0.73
236 TRI_2017-06-11	0.71
237 TRI_2018-08-13	0.71
238 TRI_2021-08-12	0.71
239 TRI_2017-06-14	0.68
240 TRI_2020-02-06	0.68
241 TRI_2017-03-06	0.67
242 TRI_2017-05-22	0.66
243 TRI_2018-03-29	0.66
244 TRI_2018-02-21	0.65
245 TRI_2018-06-11	0.65
246 TRI_2018-08-29	0.64
247 TRI_2017-07-04	0.63
248 TRI_2017-08-09	0.63
249 TRI_2017-04-12	0.62
250 TRI_2017-08-31	0.62
251 TRI_2020-02-28	0.61
252 TRI_2018-07-26	0.60
253 TRI_2021-05-24	0.60
254 TRI_2020-02-15	0.58
255 TRI_2020-09-28	0.58
256 TRI_2021-05-07	0.57
257 TRI_2017-06-28	0.53
258 TRI_2020-12-06	0.53
259 TRI_2018-07-10	0.52
260 TRI_2018-07-28	0.51
261 TRI_2017-01-11	0.49
262 TRI_2021-05-12	0.49
263 TRI_2017-04-09	0.48
264 TRI_2018-07-09	0.48
265 TRI_2018-09-03	0.48
266 TRI_2017-08-28	0.47
267 TRI_2020-08-15	0.47
268 TRI_2021-08-22	0.47
269 TRI_2017-09-08	0.46
270 TRI_2017-10-03	0.46
271 TRI_2020-01-31	0.45
272 TRI_2021-12-30	0.43
273 TRI_2017-02-25	0.42
274 TRI_2018-04-25	0.42
275 TRI_2018-07-20	0.42
276 TRI_2018-10-25	0.42
277 TRI_2020-06-30	0.41
278 TRI_2017-12-05	0.40
279 TRI_2017-06-06	0.37
280 TRI_2017-12-08	0.37
281 TRI_2018-07-08	0.37
282 TRI_2018-09-02	0.36
283 TRI_2021-07-11	0.36
284 TRI_2021-08-07	0.36
285 TRI_2018-10-29	0.35
286 TRI_2020-10-13	0.35
287 TRI_2020-05-21	0.34
288 TRI_2021-07-22	0.34
289 TRI_2018-01-04	0.33
290 TRI_2020-09-29	0.33
291 TRI_2021-08-14	0.30
292 TRI_2017-06-05	0.28
293 TRI_2020-07-13	0.28
294 TRI_2017-06-08	0.27
295 TRI_2018-07-03	0.26
296 TRI_2020-06-23	0.25
297 TRI_2020-07-09	0.25
298 TRI_2020-08-10	0.25
299 TRI_2018-05-31	0.24
300 TRI_2018-08-22	0.23
301 TRI_2021-04-18	0.23
302 TRI_2017-09-16	0.22
303 TRI_2020-04-01	0.21
304 TRI_2021-07-31	0.21
305 TRI_2021-08-26	0.21
306 TRI_2017-06-29	0.20
307 TRI_2021-05-23	0.20
308 TRI_2017-09-04	0.19
309 TRI_2020-08-27	0.19
310 TRI_2018-08-31	0.17
311 TRI_2020-06-11	0.17
312 TRI_2017-09-05	0.16
313 TRI_2020-01-10	0.15
314 TRI_2020-03-28	0.15
315 TRI_2021-10-05	0.14
316 TRI_2017-04-26	0.13
317 TRI_2017-05-24	0.13
318 TRI_2020-08-21	0.13
319 TRI_2018-03-13	0.12
320 TRI_2017-07-21	0.10
321 TRI_2021-09-15	0.08
322 TRI_2017-02-22	0.07
323 TRI_2017-02-03	0.06
324 TRI_2017-03-15	0.06
325 TRI_2017-01-01	0.00
326 TRI_2017-01-02	0.00
327 TRI_2017-01-03	0.00
328 TRI_2017-01-04	0.00

Rank, NPP code, date

mSv

1 TRI_2020-01-30

36.99

33.36

29.91

17.64

16.12

16.12

15.60

15.29

14.44

14.14

13.54

12.31

12.17

11.78

11.71

11.27

11.21

10.99

10.42

10.22

9.87

9.58

9.17

8.68

8.41

8.21

8.15

8.08

6.73

6.67

6.64

6.46

6.26

6.23

6.10

6.07

5.94

5.91

5.89

5.65

5.64

5.64

5.60

5.55

5.47

5.47

5.47

5.26

5.21

5.18

5.02

5.01

4.94

4.92

4.69

4.63

4.63

4.59

4.56

4.54

4.45

4.45

4.44

4.36

4.27

4.22

4.21

4.19

4.17

4.09

4.06

4.01

3.99

3.96

3.77

3.70

3.68

3.67

3.65

3.65

3.55

3.54

3.51

3.50

3.49

3.40

3.32

3.30

3.28

3.18

3.15

3.13

3.13

3.12

3.11

3.07

3.03

2.98

2.97

2.94

2.93

2.92

2.88

2.88

2.84

2.80

2.80

2.79

2.79

2.78

2.74

2.66

2.64

2.61

2.60

2.60

2.52

2.51

2.47

2.44

2.43

2.41

2.41

2.39

2.37

2.36

2.35

2.29

2.29

2.24

2.24

2.23

2.15

2.09

2.09

2.08

2.06

2.02

2.02

2.00

1.97

1.92

1.91

1.91

1.91

1.91

1.90

1.89

1.88

1.86

1.85

1.84

1.79

1.76

1.74

1.72

1.71

1.69

1.68

1.67

1.66

1.63

1.63

1.62

1.62

1.61

1.60

1.60

1.59

1.55

1.54

1.53

1.52

1.49

1.49

1.47

1.45

1.45

1.44

1.41

1.40

1.40

1.39

1.36

1.36

1.35

1.32

1.30

1.30

1.28

1.27

1.25

1.24

1.24

1.23

1.22

1.20

1.19

1.18

1.13

1.11

1.11

1.10

1.10

1.09

1.09

1.08

1.08

1.08

1.06

1.05

1.04

1.04

1.03

1.00

1.00

0.99

0.97

0.97

0.96

0.95

0.91

0.89

0.88

0.88

0.85

0.84

0.82

0.81

0.79

0.75

0.74

0.73

0.73

0.73

0.71

0.71

0.71

0.68

0.68

0.67

0.66

0.66

0.65

0.65

0.64

0.63

0.63

0.62

0.62

0.61

0.60

0.60

0.58

0.58

0.57

0.53

0.53

0.52

0.51

0.49

0.49

0.48

0.48

0.48

0.47

0.47

0.47

0.46

0.46

0.45

0.43

0.42

0.42

0.42

0.42

0.41

0.40

0.37

0.37

0.37

0.36

0.36

0.36

0.35

0.35

0.34

0.34

0.33

0.33

0.30

0.28

0.28

0.27

0.26

0.25

0.25

0.25

0.24

0.23

0.23

0.22

0.21

0.21

0.21

0.20

0.20

0.19

0.19

0.17

0.17

0.16

0.15

0.15

0.14

0.13

0.13

0.13

0.12

0.10

0.08

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 :

Alba (265 km) ITA

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)