Haldane effect

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Haldane effect

Quality:

Haldane effect - Deoxygenated blood increases the capacity for carbon dioxide transport. Article “Haldane effect” in English Wikipedia has 19.6 points for quality (as of July 1, 2025). The article contains 5 references and 6 sections. The article also contains templates indicating quality issues, therefore its score was reduced by 2.18 points.

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

In June 2025 the article “Haldane effect” was edited by 2 authors in English Wikipedia and written by 5 authors in all languages.

Since the creation of article “Haldane effect”, its content was written by 55 registered users of English Wikipedia and edited by 201 registered Wikipedia users in all languages.

The article is cited 84 times in English Wikipedia and cited 194 times in all languages.

The highest Authors Interest rank from 2001:

  • Local (English): #54074 in October 2016
  • Global: #66757 in May 2020

The highest popularity rank from 2008:

  • Local (English): #91799 in March 2013
  • Global: #124423 in March 2013

There are 14 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, 2025 (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
1Spanish (es)
Efecto Haldane
22.8051
2English (en)
Haldane effect
19.6449
3Swedish (sv)
Haldaneeffekten
17.5166
4Catalan (ca)
Efecte Haldane
17.2364
5French (fr)
Effet Haldane
15.2542
6Vietnamese (vi)
Hiệu ứng Haldane
12.9087
7Arabic (ar)
تأثير هولدين
10.2534
8Persian (fa)
اثر هالدین
8.1915
9German (de)
Haldane-Effekt
7.1374
10Portuguese (pt)
Efeito de Haldane
6.1491
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 "Haldane effect" in all the time
#LanguagePopularity awardRelative popularity
1English (en)
Haldane effect
1 169 233
2Spanish (es)
Efecto Haldane
233 679
3German (de)
Haldane-Effekt
150 989
4French (fr)
Effet Haldane
131 985
5Italian (it)
Effetto Haldane
108 492
6Portuguese (pt)
Efeito de Haldane
75 723
7Dutch (nl)
Haldane-effect
47 024
8Russian (ru)
Эффект Холдейна
16 177
9Swedish (sv)
Haldaneeffekten
11 640
10Hebrew (he)
אפקט הלדיין
9 614
More...

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

Most popular in June 2025

The most popular language versions of the article "Haldane effect" in June 2025
#LanguagePopularity awardRelative popularity
1English (en)
Haldane effect
2 212
2Italian (it)
Effetto Haldane
369
3German (de)
Haldane-Effekt
221
4French (fr)
Effet Haldane
221
5Spanish (es)
Efecto Haldane
200
6Russian (ru)
Эффект Холдейна
175
7Portuguese (pt)
Efeito de Haldane
100
8Dutch (nl)
Haldane-effect
33
9Vietnamese (vi)
Hiệu ứng Haldane
32
10Catalan (ca)
Efecte Haldane
25
More...

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

The highest AI

Language versions of the article "Haldane effect" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.
#LanguageAI awardRelative AI
1English (en)
Haldane effect
55
2German (de)
Haldane-Effekt
34
3French (fr)
Effet Haldane
22
4Italian (it)
Effetto Haldane
22
5Dutch (nl)
Haldane-effect
13
6Hebrew (he)
אפקט הלדיין
11
7Vietnamese (vi)
Hiệu ứng Haldane
9
8Spanish (es)
Efecto Haldane
7
9Portuguese (pt)
Efeito de Haldane
7
10Arabic (ar)
تأثير هولدين
6
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 2025

Language versions of the article "Haldane effect" with the highest AI in June 2025
#LanguageAI awardRelative AI
1Persian (fa)
اثر هالدین
3
2English (en)
Haldane effect
2
3Arabic (ar)
تأثير هولدين
0
4Catalan (ca)
Efecte Haldane
0
5German (de)
Haldane-Effekt
0
6Spanish (es)
Efecto Haldane
0
7French (fr)
Effet Haldane
0
8Hebrew (he)
אפקט הלדיין
0
9Italian (it)
Effetto Haldane
0
10Dutch (nl)
Haldane-effect
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 "Haldane effect" with the highest Citation Index (CI)
#LanguageCI awardRelative CI
1English (en)
Haldane effect
84
2Arabic (ar)
تأثير هولدين
44
3Portuguese (pt)
Efeito de Haldane
25
4German (de)
Haldane-Effekt
11
5French (fr)
Effet Haldane
7
6Catalan (ca)
Efecte Haldane
4
7Russian (ru)
Эффект Холдейна
4
8Spanish (es)
Efecto Haldane
3
9Italian (it)
Effetto Haldane
3
10Hebrew (he)
אפקט הלדיין
2
More...

Scores

Estimated value for Wikipedia:
English:
Global:
Popularity in June 2025:
English:
Global:
Popularity in all years:
English:
Global:
Authors in June 2025:
English:
Global:
Registered authors in all years:
English:
Global:
Citations:
English:
Global:

Quality measures

Interwikis

#LanguageValue
arArabic
تأثير هولدين
caCatalan
Efecte Haldane
deGerman
Haldane-Effekt
enEnglish
Haldane effect
esSpanish
Efecto Haldane
faPersian
اثر هالدین
frFrench
Effet Haldane
heHebrew
אפקט הלדיין
itItalian
Effetto Haldane
nlDutch
Haldane-effect
ptPortuguese
Efeito de Haldane
ruRussian
Эффект Холдейна
svSwedish
Haldaneeffekten
viVietnamese
Hiệu ứng Haldane

Popularity rank trends

Best Rank English:
#91799
03.2013
Global:
#124423
03.2013

AI rank trends

Best Rank English:
#54074
10.2016
Global:
#66757
05.2020

Languages comparison

Important global interconnections (July 2024 – June 2025)

Wikipedia readers most often find their way to information on Haldane effect from Wikipedia articles about Bohr effect, Chloride shift, John Scott Haldane, One day chicken and Carbaminohemoglobin. Whereas reading the article about Haldane effect people most often go to Wikipedia articles on Bohr effect, John Scott Haldane, Chloride shift, Carbaminohemoglobin and Le Chateliers principle.

Cumulative results of quality and popularity of the Wikipedia article

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

News from 5 March 2026

On 5 March 2026 in multilingual Wikipedia, Internet users most often read articles on the following topics: Iran, Ali Khamenei, 2026 Iran war, Jeffrey Epstein, Kurds, Strait of Hormuz, Yakovlev Yak-130, Donald Trump, Azerbaijan, Kristi Noem.

In English Wikipedia the most popular articles on that day were: Markwayne Mullin, Kristi Noem, 2026 Iran war, Ali Khamenei, Lou Holtz, Men's T20 World Cup, Iran, IRIS Dena, Corey Lewandowski, Deaths in 2026.

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 44 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2025. When calculating current popularity and AI of articles data from June 2025 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2025... More information