![Coral Study Traces Excess Nitrogen to Maui WWTP](https://cole-tpomag.imgix.net/https%3A%2F%2Fwww.tpomag.com%2Fuploads%2Fimages%2Fcoral-study.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=70e7a1b7818450745ed0f8d06bf6c433)
Groundwater carrying excess nutrients from treated sewage enters coastal waters through submarine freshwater seeps in the reef off the coast of Maui. (Photo by Peter Swarzenski, USGS)
A new method for reconstructing changes in nitrogen sources over time has enabled scientists to connect excess nutrients in the coastal waters of West Maui, Hawaii, to a sewage treatment facility that injects treated wastewater into the ground.
Algal blooms and degradation of...