Trending. 1  Apple is about to dramatically change the way you use an iPhone The trusty home button is going away. 2  Apple to FCC: Protect net neutrality and donât allow online fast lanes Itâs the companyâs first comments in the 2017 debate.
COD or Chemical Oxygen Demand definition. Chemical oxygen demand (COD) is a measure of the capacity of water to consume oxygen during the decomposition of organic matter and the oxidation of inorganic chemicals such as Ammonia and nitrite.
Receiving oxygen can âquietâ these signals by supplementing a low oxygen level. Too much oxygen in body tissues is called hyperoxia, and too little oxygen is called hypoxia. Oxygen reduces peripheral circulation, so it needs to be prescribed by a physician. Oxygen Therapy