Sandoz chemical spill

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Sandoz chemical spill

Quality:

Sandoz chemical spill - November 1986 environmental disaster in Switzerland. Article “Sandoz chemical spill” in English Wikipedia has 27.9 points for quality (as of July 1, 2026). The article contains 11 references and 2 sections.

This article has the best quality in Chinese Wikipedia. However, the most popular language version of this article is German.

In June 2026 the article “Sandoz chemical spill” was edited by 1 authors in English Wikipedia and written by 2 authors in all languages.

Since the creation of article “Sandoz chemical spill”, its content was written by 36 registered users of English Wikipedia and edited by 203 registered Wikipedia users in all languages.

The article is cited 16 times in English Wikipedia and cited 200 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #55557 in July 2010
  • Global: #21125 in November 2016

The highest popularity rank from 2008:

  • Local (English): #352651 in February 2012
  • Global: #142656 in November 2016

There are 10 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

Languages with the highest quality

#LanguageQuality gradeQuality score
1Chinese (zh)
1986年莱茵河污染事件
72.1244
2Dutch (nl)
Sandozramp
66.5094
3German (de)
Grossbrand von Schweizerhalle
58.8035
4Basque (eu)
Sandozeko isuri kimikoa
29.7237
5Slovenian (sl)
Razlitje kemikalij Sandoz
28.9324
6Swedish (sv)
Sandozolyckan
28.6773
7English (en)
Sandoz chemical spill
27.9392
8French (fr)
Catastrophe de Schweizerhalle
24.8344
9Spanish (es)
Derrame químico de Sandoz
21.5438
10Czech (cs)
Únik chemikálií ze Sandozu
14.6876
More...

The following table shows the most popular language versions of the article.

Most popular in all the time

The most popular language versions of the article "Sandoz chemical spill" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Sandoz chemical spill
255 774
2German (de)
Grossbrand von Schweizerhalle
228 299
3French (fr)
Catastrophe de Schweizerhalle
42 238
4Chinese (zh)
1986年莱茵河污染事件
13 395
5Dutch (nl)
Sandozramp
6 740
6Swedish (sv)
Sandozolyckan
3 970
7Spanish (es)
Derrame químico de Sandoz
3 683
8Slovenian (sl)
Razlitje kemikalij Sandoz
2 502
9Czech (cs)
Únik chemikálií ze Sandozu
542
10Basque (eu)
Sandozeko isuri kimikoa
108
More...

The following table shows the language versions of the article with the highest popularity in the last month.

Most popular in June 2026

The most popular language versions of the article "Sandoz chemical spill" in June 2026
#LanguagePopularity awardRelative popularity
1German (de)
Grossbrand von Schweizerhalle
1 529
2English (en)
Sandoz chemical spill
600
3French (fr)
Catastrophe de Schweizerhalle
258
4Chinese (zh)
1986年莱茵河污染事件
134
5Dutch (nl)
Sandozramp
88
6Spanish (es)
Derrame químico de Sandoz
58
7Swedish (sv)
Sandozolyckan
12
8Czech (cs)
Únik chemikálií ze Sandozu
8
9Slovenian (sl)
Razlitje kemikalij Sandoz
5
10Basque (eu)
Sandozeko isuri kimikoa
2
More...

The following table shows the language versions of the article with the highest Authors’ Interest.

The highest AI

Language versions of the article "Sandoz chemical spill" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1German (de)
Grossbrand von Schweizerhalle
122
2English (en)
Sandoz chemical spill
36
3French (fr)
Catastrophe de Schweizerhalle
13
4Chinese (zh)
1986年莱茵河污染事件
9
5Dutch (nl)
Sandozramp
6
6Slovenian (sl)
Razlitje kemikalij Sandoz
5
7Swedish (sv)
Sandozolyckan
5
8Czech (cs)
Únik chemikálií ze Sandozu
4
9Basque (eu)
Sandozeko isuri kimikoa
2
10Spanish (es)
Derrame químico de Sandoz
1
More...

The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

The highest AI in June 2026

Language versions of the article "Sandoz chemical spill" with the highest AI in June 2026
#LanguageAI awardRelative AI
1English (en)
Sandoz chemical spill
1
2Slovenian (sl)
Razlitje kemikalij Sandoz
1
3Czech (cs)
Únik chemikálií ze Sandozu
0
4German (de)
Grossbrand von Schweizerhalle
0
5Spanish (es)
Derrame químico de Sandoz
0
6Basque (eu)
Sandozeko isuri kimikoa
0
7French (fr)
Catastrophe de Schweizerhalle
0
8Dutch (nl)
Sandozramp
0
9Swedish (sv)
Sandozolyckan
0
10Chinese (zh)
1986年莱茵河污染事件
0
More...

The following table shows the language versions of the article with the highest number of citations.

The highest CI

Language versions of the article "Sandoz chemical spill" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1Chinese (zh)
1986年莱茵河污染事件
94
2German (de)
Grossbrand von Schweizerhalle
57
3English (en)
Sandoz chemical spill
16
4French (fr)
Catastrophe de Schweizerhalle
15
5Dutch (nl)
Sandozramp
9
6Slovenian (sl)
Razlitje kemikalij Sandoz
4
7Basque (eu)
Sandozeko isuri kimikoa
2
8Swedish (sv)
Sandozolyckan
2
9Spanish (es)
Derrame químico de Sandoz
1
10Czech (cs)
Únik chemikálií ze Sandozu
0
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2026:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2026:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
csCzech
Únik chemikálií ze Sandozu
deGerman
Grossbrand von Schweizerhalle
enEnglish
Sandoz chemical spill
esSpanish
Derrame químico de Sandoz
euBasque
Sandozeko isuri kimikoa
frFrench
Catastrophe de Schweizerhalle
nlDutch
Sandozramp
slSlovenian
Razlitje kemikalij Sandoz
svSwedish
Sandozolyckan
zhChinese
1986年莱茵河污染事件

Popularity rank trends

Best Rank English:
#352651
02.2012
Global:
#142656
11.2016

AI rank trends

Best Rank English:
#55557
07.2010
Global:
#21125
11.2016

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Sandoz chemical spill from Wikipedia articles about Sandoz, Schweizerhalle, Ministerium für Staatssicherheit, Wikipedia article and List of environmental disasters. Whereas reading the article about Sandoz chemical spill people most often go to Wikipedia articles on Bhopal disaster, Prussian blue, Sandoz, Atrazine and Novartis.

Cumulative results of quality and popularity of the Wikipedia article

List of Wikipedia articles in different languages (starting with the most popular):

News from 1 July 2026

On 1 July 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: 2026 FIFA World Cup, Kylian Mbappé, Erling Haaland, Democratic Republic of the Congo, FIFA World Cup, Harry Kane, Romelu Lukaku, Senegal, Michael Olise, Sadio Mané.

In English Wikipedia the most popular articles on that day were: 2026 FIFA World Cup, Harry Kane, Julián Quiñones, List of FIFA World Cup top goalscorers, Kylian Mbappé, Democratic Republic of the Congo, Erling Haaland, DR Congo national football team, Melat Kiros, FIFA World Cup.

About WikiRank

The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information