2 boards tagged olympics:

• 5

  times above World Health Organization standards for safety

  http://www.nytimes.com/2008/01/24/sports/othersports/24mask.html

• 750+

  the number of filtration masks for the US olympic team

  http://www.nytimes.com/2008/01/24/sports/othersports/24mask.html

• 50%

  planned reduction in traffic during the olympics

  http://www.nytimes.com/2008/01/24/sports/othersports/24mask.html

• 27

  number of SEPA air monitoring stations

  http://pyongyangsquare.com/beijingair/?p=63

• 463

  Beijing SEPA index on May 27, 2008

• 137

  Beijing's May average

• 100

  considered unhealthy & polluted air

• 24

  Beijing's best day in May

• 36

  Los Angeles average

• 65

  A rare bad day in N.Y.C