5 keywords for publications (in English, Russian) of Sergei Ostroumov, Moscow University; the 5 keywords in French, Hindi, Urdu, Kannada, Bengali, Persian, Arabic, Italian, Polish, Bulgarian, English, German, Turkish, Swedish, Dutch, Romanian, Spanish, Ukrainian, Czech, Portuguese, Kurdish, French, Hungarian, Alabanian, Slovak, Norvegian, Slovenian, Chinese, https://5bio5.blogspot.com/2018/03/5_13.html

5 keywords for publications (environmental sci., water, in English, Russian) of Sergei Ostroumov, Moscow University; the 5 keywords in 29 languages:
French, Hindi, Urdu, Kannada, Bengali, Persian, Arabic, Italian, Polish, Bulgarian, English, German,
Turkish, Tartar, Udmurt, Swedish, Dutch, Romanian, Spanish, Ukrainian,

Czech, Portuguese,  Kurdish, French, Hungarian, Albanian, Slovak, Norvegian,
Slovenian, Chinese,

https://5bio5.blogspot.com/2018/03/5_13.html

List of 400 links and titles of publications of Sergei :
http://5bio5.blogspot.ru/2018/03/400.html
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Everybody can write new translations of these words - ecology, water, nature protection, environment protection, pollution control,  -  here:
https://www.researchgate.net/post/who_can_help_me_in_translating_5_environmental_science_keywords_into_any_other_language
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ecology, water, nature protection, environment protection, pollution control,

In French, en français : Ecologie, Eau, Protection de la nature, Protection de l'environnement, Contrôle de la pollution,

In India,

In hindi:

पारिस्थितिकी, जल, प्रकृति संरक्षण, पर्यावरण संरक्षण, प्रदूषण नियंत्रण,

In urdu:

ماحولیاتی، پانی، فطرت کے تحفظ، ماحولیاتی تحفظ،

آلودگی کا کنٹرول،

In Kannada:

ಪರಿಸರ ವಿಜ್ಞಾನ, ನೀರು, ಪ್ರಕೃತಿ ರಕ್ಷಣೆ, ಪರಿಸರ ರಕ್ಷಣೆ, ಮಾಲಿನ್ಯ ನಿಯಂತ್ರಣ,

In Bengali:

পরিবেশ, জল, প্রকৃতি সুরক্ষা, পরিবেশ সুরক্ষা, দূষণ নিয়ন্ত্রণ,

Paribesh, Jal, Prakriti Surakha, Paribesh Suraksha , Dushan Niyantran,

In persian language, the keywords are:

Ecology = محیط زیست , water = آب , nature protection = حفاظت از طبیعت, environment protection = حفاظت از محیط زیست , pollution control = کنترل آلودگی,

in Arabic :

علم البيئة,

ماء,

حماية الطبيعة,

حماية البيئة,

مكافحة التلوث,

italian: ecologia, acqua, protezione della natura, protezione dell'ambiente, controllo dell'inquinamento.

Polish: ekologia, woda, ochrona przyrody, ochrona środowiska, kontrola zanieczyszczeń ,

in Indian language Hindi:

Paaristhitikeey, Panee, Prakrti Sanrakshan, Paryaavaran Saurakshan, Pradooshan Niyatran,

in Bulgarian: екология, вода, опазване на природата, опазване на околната среда, контрол на замърсяването ,

In German:

ecology - Ökologie,

water - Wasser [if applied to a habitat: Gewässer],

nature protection - Naturschutz,

environment protection - Umweltschutz [if applied to an aquatic habitat: Gewässerschutz],

pollution control - Verschmutzungskontrolle [if applied to an aquatic habitat: Kontrolle der Gewässerqualität],

In Turkish:

ecology - Ekoloji,

water - Su,

nature protection - Doğa koruma,

environment protection - Çevre koruma,

pollution control - Kirlilik kontrolü,

in Tartar / на татарском языке:

ecology - экология, water - Cy, nature protection - табигатьне саклау,

environmental protection - әйләнә-тирә мохитне саклау, pollution control - пычрануга контроль,

in Udmurt / на удмуртском языке:

ecology - экология, water - Ву, nature protection - инкуазез утён,

environmental protection - средыы котыртӥ эскерон-чаклан,

pollution control - контроль саптаськем,

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Swedish ( Joacim Näslund ):

Ecology = Ekologi, Water = Vatten, Nature protection = Naturskydd, Environment protection = Miljöskydd, Pollution control = Föroreningskontroll,

In Dutch ( Richard Van der Laan):

ecology = ecologie, water = water, nature protection = natuurbescherming, environment protection = milieubescherming, pollution control = verontreinigingsbewaking,

In Romanian (Daniel Cocan):

Ecology = Ecologie, Water = Apă, Nature protection = Protecţia naturii, Environment protection = Protecţia mediului, Pollution control = Controlul poluării,

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In Spanish (Jorge R Sánchez-González) :

Ecology = Ecología, Water = Agua,
Nature protection = Protección de la Naturaleza,

Environment protection = Protección Medioambiental,

Pollution control = Control de la Contaminación,

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Oleksandr Kovalchuk

Added , Ukrainian: ecology = екологія; water = вода; nature protection = охорона природи; environment protection= захист довкілля; pollution control = контроль забруднення,

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Vojtěch Kolář

Added

In Czech language:

ecology - ekologie,

water - voda,

nature protection - ochrana přírody,

environment protection - ochrana (životního) prostředí,

pollution control - kontrola znečištění (prostředí),

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Marcelo Andrade

Added In Portuguese: ecology = ecologia, water = água, nature protection = proteção da natureza, environment protection = proteção ambiental, pollution control = controle de poluição,

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Dlshad Ali Omer

Added

In Kurdish :

Ecology = ئيكولوجى

water = ئاو

Nature protection =  باراستنى سروشت

Environment protection = باراستنى زينكه

Pollution control = به ره نكاربوونه وه ى بيس بوون

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4 hours ago
Zakia Alioua

Added :
French:
Écologie, eau, protection de la nature, protection de l'environnement, contrôle de la pollution.
Arabic vs English:
البيئة ecology,
الماء water,
حماية الطبيعة nature protection,
حماية البيئة environment protection,
مراقبة التلوث pollution control,

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4 hours ago
Zoltán Barkaszi

Added : in Hungarian :
ökológia, víz,
természetvédelem,
környezetvédelem,
szennyezés-ellenőrzés,
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Qenan S. Maxhuni

Added

In Albanian:

ecology = ekologji,

water = ujë,

nature protection = mbrojtja e natyrës,

environment protection = mbrojtja e mjedisit,

pollution control = kontrolle e ndotjes,

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environment protection = mbrojtja e mjedisit

pollution control = kontrolli i ndotjes

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an hour ago

Ladislav Pekárik, Slovak Academy of Sci.,

Added

In Slovak:

ecology = ekológia,

water = voda,

nature protection = ochrana prírody,

environment protection = ochrana životného prostredia,

pollution control = kontrola znečistenia,

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3 days ago

Magne Neby

Added an answer

Norwegian:

Ecology = Økologi

Water = Vann

Nature protection = Naturvern

Environment protection = Miljøvern

Pollution control = Forurensningskontroll

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17 hours ago

Simona Kralj-Fišer

Added an answer

Slovenian:

Ekologija,

Voda,

Varstvo narave (naravovarstvo),

Varstvo okolja (okoljevarstvo),

Kontrola onesnaževanja,

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Kontrola onesnaževanja

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6 hours ago

Liu Kai

Added an answer

Ecology = 生态(sheng tai); Water = 水(shui); Nature protection = 自然保护(zi ran bao hu); Environment protection = 环境保护(huan jing bao hu); Pollution control = 污染控制 (wu ran kong zhi).

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Acknowledgement: Our gratitude to many international colleagues who helped with the translation.