What Biochemical Oxygen Demand (BOD) Measures?

Biochemical Oxygen Demand is a term all of us come across in most of the articles on water pollution. In this blog, I will walk you through Biochemical Oxygen Demand, its significance and measurement. Before delving into Biochemical Oxygen Demand we should first understand the concept of Dissolved Oxygen (DO), its significance and measurement.

What are Water Pollutants? – Definition, Sources and Types

Water Pollutants kill more people every year than from all forms of violence including war, according to the UNDESA. Every day, 2 million tons of sewage, industrial, and agricultural waste reaches water bodies all over the world. With the growth of the human population, industrial and agricultural activities the hydrological cycle got disrupted. As a result, declining water quality has become a global issue of concern.