Biological Oxygen Demand (BOD) is a standard criterion for
a
Measuring oxygen levels in blood
b
Computing oxygen levels in forest ecosystems
c
Pollution assay in aquatic ecosystems
d
Assessing oxygen levels in high altitude regions
Environmental Pollution IndicatorsBiological Oxygen Demand (BOD)Biological Oxygen Demand (BOD)standard criterionoxygen levelsbloodforest ecosystemspollution assayaquatic ecosystemshigh altitude regions