| Total requests for Mar 2012: 120 |
| Unique requests | Total requests | Query | Documents returned |
| 3 | 3 | interstate pollution | 6 |
| 2 | 2 | employee directory | 2 |
| 2 | 2 | cercla | 0 |
| 1 | 4 | watersheds | 52,002 |
| 1 | 3 | removing catalytic converter | 30,836 |
| 1 | 3 | connecticut regional haze | 5,199 |
| 1 | 3 | VOCs indoor | 6 |
| 1 | 3 | CSR 45 | 2 |
| 1 | 2 | what other countrys are affected by the clean air act | 44,199 |
| 1 | 2 | turtlepoint | 38,299 |
| 1 | 2 | rvp SIP requirement | 1 |
| 1 | 2 | pm2.5 | 14 |
| 1 | 2 | pm 2.5 condensable | 44,550 |
| 1 | 2 | mckean county | 38,301 |
| 1 | 2 | maximum contaminant level | 46,140 |
| 1 | 2 | florida regional haze | 44,349 |
| 1 | 2 | chesapeake bay | 6 |
| 1 | 2 | action days | 56,030 |
| 1 | 2 | SCR 45 | 1 |
| 1 | 2 | Rule | 59 |
| 1 | 2 | Ouchita Parish | 43,849 |
| 1 | 1 | what is interstate pollution | 6 |
| 1 | 1 | west virginia | 208 |
| 1 | 1 | washington state | 61 |
| 1 | 1 | us clean air act | 489 |
| 1 | 1 | top emitters | 3 |
| 1 | 1 | title v | 78 |
| 1 | 1 | texas | 8 |
| 1 | 1 | rsl | 0 |
| 1 | 1 | regulate emissions of VOCs | 1 |
| 1 | 1 | radon testing | 34 |
| 1 | 1 | radon maps | 5,480 |
| 1 | 1 | quality | 245 |
| 1 | 1 | philadelphia | 136 |
| 1 | 1 | part D Clean Air Act | 56 |
| 1 | 1 | pa | 275 |
| 1 | 1 | oig | 0 |
| 1 | 1 | noxious smoke | 0 |
| 1 | 1 | north carolina | 7 |
| 1 | 1 | municipal solid waste | 2 |
| 1 | 1 | michigan | 9 |
| 1 | 1 | mark donovan | 3 |
| 1 | 1 | jobs | 7 |
| 1 | 1 | is SIP isnt acceptable what happens | 0 |
| 1 | 1 | interstate air pollution | 356 |
| 1 | 1 | if a state SIP isnt acceptable what happens | 0 |
| 1 | 1 | home test | 37 |
| 1 | 1 | haze | 12 |
| 1 | 1 | grasonville md | 0 |
| 1 | 1 | general conformity rule | 4 |
| 1 | 1 | fracking | 1 |
| 1 | 1 | flow chart | 336 |
| 1 | 1 | employee list | 6 |
| 1 | 1 | download raw data | 0 |
| 1 | 1 | dc | 84 |
| 1 | 1 | d-list | 0 |
| 1 | 1 | cox | 9 |
| 1 | 1 | countries affected by the clean air act | 81,200 |
| 1 | 1 | chester | 15 |
| 1 | 1 | catalytic converter | 5 |
| 1 | 1 | california | 26 |
| 1 | 1 | california sip | 5 |
| 1 | 1 | bicycles | 2 |
| 1 | 1 | biciclyn | 0 |
| 1 | 1 | bicicletas | 0 |
| 1 | 1 | bicicles | 0 |
| 1 | 1 | benzene | 27 |
| 1 | 1 | benzene 24 hour | 2 |
| 1 | 1 | baltimore county md | 22 |
| 1 | 1 | asbestos | 4 |
| 1 | 1 | arizona regional haze sip | 0 |
| 1 | 1 | VOCs | 39 |
| 1 | 1 | SVOC | 0 |
| 1 | 1 | Power Plants in Southeast Region | 1 |
| 1 | 1 | Plastics | 5,080 |
| 1 | 1 | Philadelphia monitoring data | 17 |
| 1 | 1 | PRN 98-10 | 53,400 |
| 1 | 1 | PEPCO Holdings | 1 |
| 1 | 1 | MSW | 5 |
| 1 | 1 | Air Quality | 90,200 |
| 1 | 1 | AQS | 3 |
| 1 | 1 | AQS database | 2 |
| 1 | 1 | 80525 | 0 |
| 1 | 1 | 28472 | 0 |
| 1 | 1 | 24-hour PM2.5 NAAQS | 3 |
| 1 | 1 | 21784 | 0 |
| 1 | 1 | 2014 Heavy duty trucks | 1 |
| 1 | 1 | 19380 | 0 |
| 1 | 1 | 18634 | 0 |
| 1 | 1 | 18 mile creek | 0 |
| 1 | 1 | 16750 | 0 |
| 1 | 1 | 128 state route 180 Chillicothe Ohio | 17,200 |
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