Testing the water in streams, rivers, lakes, and other water bodies has become quite an effort. Runoff, trash, illegal dumping point source pollution from industry damage our drinking water.
What these UCLA students are setting up is a prototype mechanized water tester.... It tests pH, DO, Nitrogen and Phosphorous. It also is a spectrophotometer that can identify the absorbence of the major components in the water.... identifying the algae populations by their chlorophyl.
Can you imagine automated water testers throughout California making sure the water is up to standard and the information broadcast to a main station somewhere....? sort of like wiretapping water before you tap the tapable tap.