7 Shortz-era entries found. Click any date for context. Repeated clues show (number of occurrences).
|Saturday, January 5, 2013||41D||E.P.A. computation||Barry C. Silk|
|Friday, November 18, 2011||10D||Environmental datum of concern to asthmatics, for short||Joe DiPietro|
|Thursday, December 4, 2008||14A||E.P.A. pollution meas. (2)||Barry C. Silk|
|Friday, September 26, 2008||16D||Smog stat.||Barry C. Silk|
|Sunday, May 7, 2006||105D||E.P.A. pollution meas. (2)||Trip Payne|
|Thursday, February 10, 2005||48D||Atmospheric pollution meas.||Frank Longo|
|Saturday, November 14, 1998||10D||Pollution meas.||Matt Gaffney|