Limit by calendar year: 2011 All
| 2009-1(secured).pdf | 102 |
| May 2011 | June 2011 | July 2011 | August 2011 | September 2011 | October 2011 | November 2011 | December 2011 | January 2012 | February 2012 | March 2012 | April 2012 | May 2012 | |
| 2009-1(secured).pdf | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 6 | 26 | 29 | 18 |
| Issues in the Aggregation of Data to Assess Environmental Conditions | 111 |
| United States of America | 43 |
| Korea | 21 |
| Japan | 8 |
| Sweden | 6 |
| China | 5 |
| Germany | 4 |
| Netherlands | 3 |
| Czech Republic | 2 |
| Spain | 2 |
| France | 2 |
| Seoul | 21 |
| Washington | 12 |
| Corvallis | 6 |
| 4 | |
| Mountain View | 4 |
| Saint Louis | 4 |
| Beijing | 3 |
| Sierra Vista | 3 |
| Östersund | 3 |
| Fairbanks | 2 |