Biochemical oxygen demand

Biochemical oxygen demand - oxygen needed to remove organics from water. Article "Biochemical oxygen demand" in English Wikipedia has 59.4 points for quality (as of July 1, 2025). The article contains 36 references and 21 sections.

In this language version of Wikipedia the article has the best quality. Also, this article is the most popular in that language version.

Since the creation of article "Biochemical oxygen demand", its content was written by 191 registered users of English Wikipedia and edited by 766 registered Wikipedia users in all languages.

The article is cited 284 times in English Wikipedia and cited 1194 times in all languages.

The highest Authors Interest rank from 2001:

• Local (English): #6793 in October 2017
• Global: #5745 in August 2009

The highest popularity rank from 2008:

• Local (English): #18820 in April 2015
• Global: #20019 in April 2015

There are 32 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.

#	Language	Quality grade	Quality score
1	English (en) Biochemical oxygen demand		59.4499
2	Chinese (zh) 生化需氧量		29.3537
3	Lithuanian (lt) Biocheminis deguonies suvartojimas		26.9329
4	Tamil (ta) உயிரிய உயிர்வளித் தேவை		26.4888
5	Persian (fa) اکسیژن مورد نیاز بیولوژیکی		26.185
6	Korean (ko) 생화학적 산소 요구량		24.3047
7	Spanish (es) Demanda biológica de oxígeno		23.9383
8	Portuguese (pt) Demanda biológica de oxigênio		19.6979
9	Arabic (ar) الاحتياج الأكسجيني الحيوي		18.2159
10	Malay (ms) Permintaan oksigen biokimia		17.0804

More...

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

The most popular language versions of the article "Biochemical oxygen demand" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Biochemical oxygen demand		5 273 823
2	Japanese (ja) 生物化学的酸素要求量		1 361 812
3	Spanish (es) Demanda biológica de oxígeno		1 177 896
4	German (de) Biochemischer Sauerstoffbedarf		391 199
5	Portuguese (pt) Demanda biológica de oxigênio		384 921
6	French (fr) Demande biochimique en oxygène		384 260
7	Italian (it) Domanda biochimica di ossigeno		299 465
8	Russian (ru) Биологическое потребление кислорода		233 930
9	Chinese (zh) 生化需氧量		228 793
10	Polish (pl) Biochemiczne zapotrzebowanie tlenu		223 373

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

The most popular language versions of the article "Biochemical oxygen demand" in June 2025

#	Language	Popularity award	Relative popularity
1	English (en) Biochemical oxygen demand		5 408
2	Japanese (ja) 生物化学的酸素要求量		1 527
3	Korean (ko) 생화학적 산소 요구량		563
4	French (fr) Demande biochimique en oxygène		494
5	German (de) Biochemischer Sauerstoffbedarf		479
6	Chinese (zh) 生化需氧量		465
7	Russian (ru) Биологическое потребление кислорода		462
8	Spanish (es) Demanda biológica de oxígeno		461
9	Italian (it) Domanda biochimica di ossigeno		344
10	Portuguese (pt) Demanda biológica de oxigênio		196

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

Language versions of the article "Biochemical oxygen demand" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	English (en) Biochemical oxygen demand		191
2	German (de) Biochemischer Sauerstoffbedarf		78
3	Italian (it) Domanda biochimica di ossigeno		57
4	French (fr) Demande biochimique en oxygène		54
5	Dutch (nl) Biochemisch zuurstofverbruik		38
6	Vietnamese (vi) Nhu cầu oxy sinh hóa		32
7	Spanish (es) Demanda biológica de oxígeno		31
8	Portuguese (pt) Demanda biológica de oxigênio		29
9	Japanese (ja) 生物化学的酸素要求量		28
10	Galician (gl) Demanda Biolóxica de Osíxeno		26

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

Language versions of the article "Biochemical oxygen demand" with the highest AI in June 2025

#	Language	AI award	Relative AI
1	Spanish (es) Demanda biológica de oxígeno		4
2	Arabic (ar) الاحتياج الأكسجيني الحيوي		0
3	Catalan (ca) Demanda bioquímica d'oxigen		0
4	Czech (cs) Biochemická spotřeba kyslíku		0
5	German (de) Biochemischer Sauerstoffbedarf		0
6	Greek (el) Βιοχημικά απαιτούμενο οξυγόνο		0
7	English (en) Biochemical oxygen demand		0
8	Estonian (et) Biokeemiline hapnikutarve		0
9	Basque (eu) Oxigeno eskari biologiko		0
10	Persian (fa) اکسیژن مورد نیاز بیولوژیکی		0

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

Language versions of the article "Biochemical oxygen demand" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	English (en) Biochemical oxygen demand		284
2	Japanese (ja) 生物化学的酸素要求量		144
3	Spanish (es) Demanda biológica de oxígeno		120
4	French (fr) Demande biochimique en oxygène		106
5	German (de) Biochemischer Sauerstoffbedarf		58
6	Persian (fa) اکسیژن مورد نیاز بیولوژیکی		57
7	Chinese (zh) 生化需氧量		56
8	Russian (ru) Биологическое потребление кислорода		52
9	Polish (pl) Biochemiczne zapotrzebowanie tlenu		51
10	Italian (it) Domanda biochimica di ossigeno		35

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#	Language	Value
ar	Arabic الاحتياج الأكسجيني الحيوي
ca	Catalan Demanda bioquímica d'oxigen
cs	Czech Biochemická spotřeba kyslíku
de	German Biochemischer Sauerstoffbedarf
el	Greek Βιοχημικά απαιτούμενο οξυγόνο
en	English Biochemical oxygen demand
es	Spanish Demanda biológica de oxígeno
et	Estonian Biokeemiline hapnikutarve
eu	Basque Oxigeno eskari biologiko
fa	Persian اکسیژن مورد نیاز بیولوژیکی
fr	French Demande biochimique en oxygène
gl	Galician Demanda Biolóxica de Osíxeno
id	Indonesian Kebutuhan oksigen hayati
it	Italian Domanda biochimica di ossigeno
ja	Japanese 生物化学的酸素要求量
ko	Korean 생화학적 산소 요구량
lt	Lithuanian Biocheminis deguonies suvartojimas
ms	Malay Permintaan oksigen biokimia
nl	Dutch Biochemisch zuurstofverbruik
nn	Norwegian (Nynorsk) Biokjemisk oksygenforbruk
no	Norwegian Biologisk oksygenforbruk
pl	Polish Biochemiczne zapotrzebowanie tlenu
pt	Portuguese Demanda biológica de oxigênio
ru	Russian Биологическое потребление кислорода
sh	Serbo-Croatian BPK
sr	Serbian Биохемијска потреба кисеоника
sv	Swedish Biochemical Oxygen Demand
ta	Tamil உயிரிய உயிர்வளித் தேவை
tr	Turkish Biyokimyasal oksijen ihtiyacı
uk	Ukrainian Біохімічна потреба кисню
vi	Vietnamese Nhu cầu oxy sinh hóa
zh	Chinese 生化需氧量

Best Rank

English: #18820 04.2015

Global: #20019 04.2015

Best Rank

English: #6793 10.2017

Global: #5745 08.2009

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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