🌐EnglishEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ555857· pop 33· linked from 177 articleschemical oxygen demandAlso known as CODmeasure of the amount of oxygen that can be consumed by reactions in a solutionAvailable in 33 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةBahasa IndonesiaConnectionsbiochemical oxygen demandEntitywastewater treatmentEntityCategoriesAnaerobic digestionAquatic ecologyChemical oceanographyEnvironmental chemistryLimnologyWater quality indicators