Chemical oxygen demand

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

Field Hierarchy

Parent
Engineering 25.5M papers	Environmental science 9M papers	Waste management 1.6M papers	Environmental engineering 991k papers
Wastewater 249k papers		Sewage treatment 121k papers
Current
Chemical oxygen demand 41.4k papers
Child
Biochemical oxygen demand 14.1k papers	Total suspended solids 9,622 papers	Volatile suspended solids 3,411 papers	Wastewater quality indicators 1,163 papers

Trends

Notes

History