Fluorescent-colored sand could show effects of ocean currents on California’s eroding beaches

Fluorescent-colored sand sprinkled on San Diego County beaches could help reveal the complicated patterns of erosion that plague the region’s coastline.

A so-called “tracer study” would use environmentally benign grains of bright material to show the movement of sand carried by ocean currents. The technique is recommended in a report recently completed by a “sediment management task force” for the county’s regional planning agency.

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