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Biochemical oxygen demand

Biochemical oxygen demand is part of IB Environmental Systems and Societies Topic 4.4. Below you'll find links to free study notes, flashcards, and practice questions.

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More in Topic 4.4

4.4.1Sources and impacts of water pollution4.4.2Plastic in the oceans4.4.3Measuring water quality4.4.5Eutrophication: the cause4.4.6Eutrophication: the sequence of impacts4.4.7Eutrophication and ecosystem services4.4.8Three levels of managing eutrophication