Research conducted at Portland State University indicates higher levels of caffeine in certain parts of the Pacific ocean off the Oregon coastline.
After collecting samples from 14 different coastal locations, graduate student Zoe Rodriguez del Ray and faculty advisor Elise Granek found elevated levels of caffeine in water taken near state parks as well as after a storm that triggered sewer overflows.
In a previous study, Rodriguez del Ray and Granek found that even tiny amounts of caffeine can affect intertidal mussels.
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