Indicator organisms are microorganisms or plants that serve as a measure of the environmental conditions that exist in a given location. Typical indicator organisms are faecal contamination indicators such as E. coli or coliforms.
Perspectives are different frameworks from which to explore the knowledge around sustainable sanitation and water management. Perspectives are like filters: they compile and structure the information that relate to a given focus theme, region or context. This allows you to quickly navigate to the content of your particular interest while promoting the holistic understanding of sustainable sanitation and water management.