| Total requests for Dec 2010: 251 |
| Unique requests | Total requests | Query | Documents returned |
| 2 | 6 | wood stove | 46,586 |
| 2 | 2 | pesticide | 243,546 |
| 2 | 2 | carbon dioxide | 136 |
| 2 | 2 | bart | 33 |
| 2 | 2 | PSD | 88 |
| 2 | 2 | NAAQS 2016 | 9 |
| 1 | 7 | determination carbon monoxide standards health 173 | 60,360 |
| 1 | 5 | ozone forecast alert | 56,337 |
| 1 | 5 | Paint stripping misc. surface coating operation 40 CFR Part 63 subpart HHHHHH | 106,217 |
| 1 | 4 | SO2 Guideline Document | 69,857 |
| 1 | 4 | Method 9 dust opacity | 70,648 |
| 1 | 3 | texas | 10,555 |
| 1 | 3 | smog | 47,077 |
| 1 | 3 | legend involving lead | 93,923 |
| 1 | 3 | ftp cycle | 14 |
| 1 | 3 | coconino county | 46,562 |
| 1 | 3 | bad ozone epa | 46,964 |
| 1 | 3 | STERPP | 46,953 |
| 1 | 3 | RRP certification | 0 |
| 1 | 3 | Phase II wood stove | 93,301 |
| 1 | 3 | Cigarettes | 18,338 |
| 1 | 2 | wood pellet | 11 |
| 1 | 2 | water quality | 70,512 |
| 1 | 2 | valcourt | 69,838 |
| 1 | 2 | uv index | 70,425 |
| 1 | 2 | turbine | 70,464 |
| 1 | 2 | solvent metal cleaner | 1,073 |
| 1 | 2 | san bruno | 1,346 |
| 1 | 2 | ract | 69,865 |
| 1 | 2 | ozone | 238 |
| 1 | 2 | myth involving lead | 70,442 |
| 1 | 2 | list Phase II wood stove grams | 70,407 |
| 1 | 2 | improvement statistics | 68 |
| 1 | 2 | ftp | 18 |
| 1 | 2 | epa certified outdoor wood furnaces | 13,688 |
| 1 | 2 | ecn39 | 0 |
| 1 | 2 | duval county | 70,442 |
| 1 | 2 | dockets 67 | 70,418 |
| 1 | 2 | boiler mact | 14 |
| 1 | 2 | bad ozone | 70,432 |
| 1 | 2 | august 7 1980 preamble | 70,633 |
| 1 | 2 | aldol condensation reactions | 4,078 |
| 1 | 2 | West-Gaeke | 0 |
| 1 | 2 | OAR–2002–0058 | 69,838 |
| 1 | 2 | Joanna Rice | 70,442 |
| 1 | 2 | EPA–HQ–OAR–2002– | 0 |
| 1 | 2 | Clean Air Act title V | 409 |
| 1 | 2 | BACT Guidance for GHGs | 13 |
| 1 | 2 | 59101 | 0 |
| 1 | 1 | yyyyy | 0 |
| 1 | 1 | white tag | 7 |
| 1 | 1 | where to complain | 5 |
| 1 | 1 | unregulated contaminants monitoring rule | 3 |
| 1 | 1 | ultra low sulfur heating oil | 140,884 |
| 1 | 1 | tucson az | 1 |
| 1 | 1 | treated corn emissions | 139,676 |
| 1 | 1 | treated coen emissions | 0 |
| 1 | 1 | transportation conformity rule | 62 |
| 1 | 1 | training | 102 |
| 1 | 1 | storage tank | 28 |
| 1 | 1 | space heating | 38 |
| 1 | 1 | solvents | 66 |
| 1 | 1 | six air pollutant | 284 |
| 1 | 1 | sil | 0 |
| 1 | 1 | secondary polluants | 0 |
| 1 | 1 | santa clara where to complain' | 0 |
| 1 | 1 | safe air limits | 35 |
| 1 | 1 | rrp | 0 |
| 1 | 1 | replacement | 122 |
| 1 | 1 | regulate air pollutants | 318 |
| 1 | 1 | registered pesticides | 927 |
| 1 | 1 | puerto rico | 0 |
| 1 | 1 | proyectos de la epa | 0 |
| 1 | 1 | precursors | 147 |
| 1 | 1 | preamble PSD | 140,835 |
| 1 | 1 | powerplant acid aerosol emissions | 0 |
| 1 | 1 | power plant equations | 35 |
| 1 | 1 | pollution types | 139,676 |
| 1 | 1 | pollution statistics | 17,473 |
| 1 | 1 | pollen counts | 4 |
| 1 | 1 | partnership program | 61 |
| 1 | 1 | particle board burning | 30 |
| 1 | 1 | painter certification | 2 |
| 1 | 1 | ozone smog | 81 |
| 1 | 1 | ozone forecasrt | 0 |
| 1 | 1 | ozone 2010 data | 83,977 |
| 1 | 1 | output wood stave | 0 |
| 1 | 1 | nsps | 6 |
| 1 | 1 | notication of compliance | 140,884 |
| 1 | 1 | nitrogen dioxide | 290 |
| 1 | 1 | new source performance standards 484 | 140,884 |
| 1 | 1 | natural phenomenon that effect the ozone | 15 |
| 1 | 1 | natural gas | 136 |
| 1 | 1 | natural gas insert tax credit | 140,811 |
| 1 | 1 | national ambient air quality | 331 |
| 1 | 1 | metro manila | 0 |
| 1 | 1 | maintenance area | 168 |
| 1 | 1 | lecture theatre | 0 |
| 1 | 1 | lead | 407 |
| 1 | 1 | lead rrp | 0 |
| 1 | 1 | lead myth | 140,884 |
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