Perfluorooctanoic acid

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Perfluorooctanoic acid

Quality:

Perfluorooctanoic acid - chemical compound. Article “Perfluorooctanoic acid” in Simple English Wikipedia has 12.4 points for quality (as of July 1, 2026). The article contains 1 references and 2 sections.

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

Since the creation of article “Perfluorooctanoic acid”, its content was written by 1 registered users of Simple English Wikipedia and edited by 704 registered Wikipedia users in all languages.

The article is cited 18 times in Simple English Wikipedia and cited 1097 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (Simple English): #2796 in November 2025
  • Global: #10981 in February 2025

The highest popularity rank from 2008:

  • Local (Simple English): #77664 in September 2011
  • Global: #11772 in March 2020

There are 28 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
1Korean (ko)
과불화옥탄산
90.7692
2English (en)
Perfluorooctanoic acid
88.6421
3German (de)
Perfluoroctansäure
67.2917
4Dutch (nl)
Perfluoroctaanzuur
45.0576
5Indonesian (id)
Asam perfluorooktanoat
44.725
6Italian (it)
Acido perfluoroottanoico
41.2133
7French (fr)
Acide perfluorooctanoïque
39.3021
8Portuguese (pt)
Ácido perfluorooctanoico
36.9786
9Russian (ru)
Перфтороктановая кислота
34.0594
10Thai (th)
กรดเพอร์ฟลูออโรออกทาโนอิก
33.7363
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 "Perfluorooctanoic acid" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Perfluorooctanoic acid
3 198 119
2German (de)
Perfluoroctansäure
511 556
3Russian (ru)
Перфтороктановая кислота
409 232
4Japanese (ja)
ペルフルオロオクタン酸
379 189
5Spanish (es)
Ácido perfluorooctanoico
283 827
6French (fr)
Acide perfluorooctanoïque
265 176
7Italian (it)
Acido perfluoroottanoico
173 621
8Dutch (nl)
Perfluoroctaanzuur
148 003
9Chinese (zh)
全氟辛酸
112 416
10Portuguese (pt)
Ácido perfluorooctanoico
67 808
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 "Perfluorooctanoic acid" in June 2026
#LanguagePopularity awardRelative popularity
1English (en)
Perfluorooctanoic acid
6 459
2German (de)
Perfluoroctansäure
1 267
3Russian (ru)
Перфтороктановая кислота
1 210
4Italian (it)
Acido perfluoroottanoico
860
5Japanese (ja)
ペルフルオロオクタン酸
849
6French (fr)
Acide perfluorooctanoïque
682
7Spanish (es)
Ácido perfluorooctanoico
502
8Chinese (zh)
全氟辛酸
448
9Dutch (nl)
Perfluoroctaanzuur
216
10Korean (ko)
과불화옥탄산
161
More...

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

The highest AI

Language versions of the article "Perfluorooctanoic acid" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Perfluorooctanoic acid
272
2German (de)
Perfluoroctansäure
93
3French (fr)
Acide perfluorooctanoïque
60
4Russian (ru)
Перфтороктановая кислота
49
5Italian (it)
Acido perfluoroottanoico
44
6Dutch (nl)
Perfluoroctaanzuur
42
7Japanese (ja)
ペルフルオロオクタン酸
19
8Finnish (fi)
Perfluorioktaanihappo
17
9Norwegian (no)
Perfluorert oktansyre
13
10Portuguese (pt)
Ácido perfluorooctanoico
11
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 "Perfluorooctanoic acid" with the highest AI in June 2026
#LanguageAI awardRelative AI
1Czech (cs)
Kyselina perfluoroktanová
4
2Basque (eu)
Azido perfluorooktanoiko
1
3French (fr)
Acide perfluorooctanoïque
1
4Italian (it)
Acido perfluoroottanoico
1
5Japanese (ja)
ペルフルオロオクタン酸
1
6Korean (ko)
과불화옥탄산
1
7Arabic (ar)
حمض بيرفلورو الأوكتانويك
0
8Azerbaijani (az)
Perfluorooktan turşusu
0
9Catalan (ca)
Àcid perfluorooctanoic
0
10German (de)
Perfluoroctansäure
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 "Perfluorooctanoic acid" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Perfluorooctanoic acid
354
2Japanese (ja)
ペルフルオロオクタン酸
332
3French (fr)
Acide perfluorooctanoïque
96
4German (de)
Perfluoroctansäure
76
5Persian (fa)
پرفلوئورواکتانوئیک اسید
30
6Chinese (zh)
全氟辛酸
22
7Spanish (es)
Ácido perfluorooctanoico
19
8Italian (it)
Acido perfluoroottanoico
19
9Simple English (simple)
Perfluorooctanoic acid
18
10Arabic (ar)
حمض بيرفلورو الأوكتانويك
15
More...

Scores

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

Quality measures

Interwikis

#LanguageValue
arArabic
حمض بيرفلورو الأوكتانويك
azAzerbaijani
Perfluorooktan turşusu
caCatalan
Àcid perfluorooctanoic
csCzech
Kyselina perfluoroktanová
deGerman
Perfluoroctansäure
enEnglish
Perfluorooctanoic acid
esSpanish
Ácido perfluorooctanoico
euBasque
Azido perfluorooktanoiko
faPersian
پرفلوئورواکتانوئیک اسید
fiFinnish
Perfluorioktaanihappo
frFrench
Acide perfluorooctanoïque
heHebrew
חומצה פרפלואורואוקטאנואית
idIndonesian
Asam perfluorooktanoat
itItalian
Acido perfluoroottanoico
jaJapanese
ペルフルオロオクタン酸
koKorean
과불화옥탄산
nlDutch
Perfluoroctaanzuur
noNorwegian
Perfluorert oktansyre
ptPortuguese
Ácido perfluorooctanoico
ruRussian
Перфтороктановая кислота
shSerbo-Croatian
Perfluorooktanoinska kiselina
simpleSimple English
Perfluorooctanoic acid
srSerbian
Perfluorooktanoinska kiselina
thThai
กรดเพอร์ฟลูออโรออกทาโนอิก
trTurkish
Perflorooktanoik asit
ukUkrainian
Перфтороктанова кислота
urUrdu
پر فلورو اوکٹانوئک ایسڈ
zhChinese
全氟辛酸

Popularity rank trends

Best Rank Simple English:
#77664
09.2011
Global:
#11772
03.2020

AI rank trends

Best Rank Simple English:
#2796
11.2025
Global:
#10981
02.2025

Local AI rank history

Languages comparison

Important global interconnections (July 2025 – June 2026)

Wikipedia readers most often find their way to information on Perfluorooctanoic acid from Wikipedia articles about Polytetrafluoroethylene, Dark Waters, Per- and polyfluoroalkyl substances, Robert Bilott and DuPont. Whereas reading the article about Perfluorooctanoic acid people most often go to Wikipedia articles on Per- and polyfluoroalkyl substances, Polytetrafluoroethylene, Perfluorooctanesulfonic acid, Robert Bilott and DuPont.

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 Simple English Wikipedia the most popular articles on that day were: List of European countries, Black, List of sex positions, 2026 Iran war, Suresh Raina, Politics of Germany, Academy Award for Best Director, 2020, DYSS-TV, 2022.

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