"There exists a class of hyper-polluters — the worst-of-the-worst — that disproportionately expose communities of color and low income populations to chemical releases," researchers write in a 2016 paper.
It took less than 30 minutes for the 2-year-old golden retriever to die. One moment, the dog was swimming alongside her owners' canoe. The next, she was seizing and foaming at the mouth. Experts say toxic algae is a rising threat in California waters.