Chemical oxygen demand

https://www.wikidata.org/wiki/Q555857

Field Hierarchy

Parent
Engineering 25M papers	Environmental science 8.8M papers	Waste management 1.6M papers	Environmental engineering 971k papers
Wastewater 242k papers		Sewage treatment 118k papers
Current
Chemical oxygen demand 40.7k papers
Child
Biochemical oxygen demand 13.9k papers	Total suspended solids 9,484 papers	Volatile suspended solids 3,352 papers	Wastewater quality indicators 1,158 papers

Trends

Notes

History