NASA helps warn of harmful algal blooms in lakes, reservoirs
Harmful algal blooms can cause big problems in coastal areas and lakes across the United States. When toxin-containing aquatic organisms multiply and form a bloom, it can sicken people and pets, contaminate drinking water, and force closures at boating and swimming sites.
With limited resources to monitor these often-unpredictable blooms, water managers are turning to new technologies from NASA and its partners to detect and keep track of potential hazards. This is particularly critical in lakes and reservoirs that people use for both recreation and water supply.
A new app for Android mobile devices, from the U.S. Environmental Protection Agency (EPA) and now available on Google play, will alert officials and members of the public when a harmful algal bloom could be forming, depending on specific changes in the color of the water observed by satellites. The app is a product of the multi-agency Cyanobacteria Assessment Network, or CyAN.
“The interest is to use remote sensing as an eye-in-the-sky, early warning system to get a picture of harmful cyanobacteria in U.S. inland lakes,” said Jeremy Werdell, the NASA Goddard Space Flight Center lead for CyAN, which also includes the EPA, the U.S. Geological Survey (USGS) and the National Oceanic and Atmospheric Administration (NOAA).