Answer: PPM
PPM is a crossword puzzle answer that we have spotted 10 times.
Referring Clues:
- Concentration amt.
- EPA pollutant concentration meas.
- EPA meas.
- Dilution meas.
- Meas. for trace amounts
- Fluoride-in-water meas.
- Pollutant concentration meas.
- Pollution meas. hidden in "Lippmann"
- Meas. of concentration
- [See note]
Last Seen In:
- New York Times - August 08, 2021
- LA Times - August 04, 2021
- Universal - October 19, 2019
- New York Times - September 24, 2019
- LA Times - December 29, 2016
- LA Times - June 09, 2013
- LA Times - April 20, 2012
- Chicago Reader - October 07, 2011
- Chicago Reader - September 10, 2010
- Chicago Reader - August 27, 2010
- LA Times - January 17, 2010
- LA Times - December 02, 2007
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