NPR News & NPR Talk 90.7 Central Shenandoah Valley - 103.5 Charlottesville - 89.9 Lexington - 94.5 Winchester - 91.3 Farmville

Donate

Play Live Radio

Next Up:

0:00

0:00 0:00

Available On Air Stations

Minneapolis high school swimmer invents portable device to measure chloramine levels

NPR | By Diantha Parker,

Noah Bloch

Published June 20, 2026 at 7:40 AM EDT

Indoor pools can have a distinct odor caused by chlorine binding to body waste. A Minnesota student invented a device to measure chloramine levels.