"live microorganism"

Quickly and Accurately Identify, Differentiate, and Quantify Coliform Contamination in Water Samples

Less confusing than other test kits that require students to distinguish different bacterial colonies on a Petri dish, this test features a distinct color change that will tell with certainty if fecal coliforms are present.

Make Sure the Water is Free of E. coli

Bacteria Make Up Much of the Composition of the Soil