In 1998, researchers used fluorescent tracers in Boston’s Fort Point Channel to track polluted sediment; water flushed in 1–2.7 days, but particle removal ran 10 times faster than lab tests

A study conducted in 1998 unveiled that water in Fort Point Channel was renewed within just a few days. Contrary to laboratory tests, suspended particles vanished from the water column more quickly than expected. Researchers discovered that interactions with sediment were responsible for trapping contaminants at the channel’s bottom, suggesting that the fate of particles was influenced more by sediment rather than just flushing.
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