This article originally appeared on Inside Climate News, a nonprofit, non-partisan news organization that covers climate, energy, and the environment. Sign up for their newsletter here.
PASADENA, Calif.—Nicole Byrne watched anxiously from across the small kitchen in her home as Parham Azimi, a Harvard University researcher, lined up sample bottles next to the running tap.
As his phone timer chimed, indicating the water pipes had been flushed for the required five minutes, Azimi began filling collection bottles and packing them to be mailed to a lab in San Diego later that day.
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