Figure 6. The Biological Oxygen Demand in groundwater samples of different villages during different seasons

From

Physico-chemical and Biological Characterization of Groundwater: A Case Study of Auraiya District, Uttar Pradesh, India

Yogesh Kumar, Deepak Singh, Usha Mina

Applied Ecology and Environmental Sciences. 2019, 7(2), 74-84 doi:10.12691/aees-7-2-5