| Total requests for Sep 2011: 903 |
| Unique requests | Total requests | Query | Documents returned |
| 15 | 17 | radon | 645 |
| 11 | 11 | radon mitigation | 120 |
| 6 | 6 | what is radon | 240 |
| 6 | 6 | radon maps | 188 |
| 5 | 6 | radon tests | 225 |
| 5 | 6 | mold | 23 |
| 5 | 6 | EPA-402-R-93-071 | 0 |
| 5 | 5 | radon test kit | 82 |
| 5 | 5 | granite countertop | 4 |
| 4 | 12 | where does radon come from | 13,725 |
| 4 | 7 | EPA 402-R-93-078 | 2 |
| 4 | 5 | 402-K-10-007 | 0 |
| 4 | 4 | lead paint | 4 |
| 4 | 4 | free radon test kit | 54 |
| 3 | 8 | a citizens guide to radon | 55 |
| 3 | 6 | Radon Mitigation Standards | 242 |
| 3 | 4 | canada | 3 |
| 3 | 3 | radon levels | 122 |
| 3 | 3 | radon in water | 194 |
| 3 | 3 | citizens guide to radon | 62 |
| 3 | 3 | asbestos | 4 |
| 3 | 3 | EPA 402-K-03-002 | 0 |
| 2 | 7 | epa 625R-93-011 October 1993 | 14,344 |
| 2 | 5 | radon standards | 18,347 |
| 2 | 4 | sump pump | 7 |
| 2 | 3 | testing | 28,550 |
| 2 | 3 | test kits | 1,008 |
| 2 | 3 | protect your family from lead in your home | 38,345 |
| 2 | 3 | louisiana | 38,339 |
| 2 | 3 | lead | 33,049 |
| 2 | 3 | dealing with radon in real estate transactions | 28,403 |
| 2 | 3 | cost | 71 |
| 2 | 3 | POSTERS OF RADON | 29 |
| 2 | 3 | Carbon Monoxide | 28,404 |
| 2 | 2 | water testing | 193 |
| 2 | 2 | symptoms | 3 |
| 2 | 2 | state radon | 227 |
| 2 | 2 | sewer gas | 3 |
| 2 | 2 | radon testing checklist | 37 |
| 2 | 2 | radon granite | 7 |
| 2 | 2 | poster contest | 23 |
| 2 | 2 | mitigators | 63 |
| 2 | 2 | methane | 2 |
| 2 | 2 | lead base paint | 4 |
| 2 | 2 | interpreting radon test results | 5 |
| 2 | 2 | consumers guide to radon reduction | 51 |
| 2 | 2 | basement | 38 |
| 2 | 2 | air purifier | 5 |
| 2 | 2 | action level | 169 |
| 2 | 2 | RADON ZONES | 176 |
| 2 | 2 | Epa investigaions | 0 |
| 2 | 2 | ASTM E 2121-09 | 2 |
| 2 | 2 | 402-R-93- | 1 |
| 1 | 7 | Map of Radon miami dade florida | 13,245 |
| 1 | 6 | Instal the fan for the radon | 8 |
| 1 | 5 | RADON DEVICES | 43 |
| 1 | 4 | cobalt | 0 |
| 1 | 4 | blue diamonds | 801 |
| 1 | 4 | In which region of the United States is your home state | 45,079 |
| 1 | 3 | wilkes county nc 28659 | 0 |
| 1 | 3 | where can I buy a radon tester My zip code is53811 | 0 |
| 1 | 3 | slideshow | 0 |
| 1 | 3 | radon in yard where children play | 28,400 |
| 1 | 3 | radon in water system | 26 |
| 1 | 3 | radon epa chinese | 15,000 |
| 1 | 3 | pCiL levels in water | 28,444 |
| 1 | 3 | municipal land use | 1 |
| 1 | 3 | install the fan pipe for the radon | 896 |
| 1 | 3 | how many grams in pCiL | 5 |
| 1 | 3 | fixing your existing home for radon mitigation | 29,361 |
| 1 | 3 | electromagnetic electr.icity | 0 |
| 1 | 3 | edern | 32,843 |
| 1 | 3 | co kerry | 0 |
| 1 | 3 | Wilkes County North Carolina | 56,799 |
| 1 | 3 | Houston TX | 1 |
| 1 | 3 | EPA6255-86019 | 0 |
| 1 | 2 | where can I buy a radon test My zip code is 52001 | 56,999 |
| 1 | 2 | water assessment | 7 |
| 1 | 2 | virginia | 40 |
| 1 | 2 | training providers | 22 |
| 1 | 2 | terry brennan | 42,601 |
| 1 | 2 | strip mines | 1 |
| 1 | 2 | start form | 21 |
| 1 | 2 | soil texture | 0 |
| 1 | 2 | real estate measurement | 31 |
| 1 | 2 | radon test laboratoris | 20 |
| 1 | 2 | radon symtoms | 3 |
| 1 | 2 | radon reading for wilkes county | 0 |
| 1 | 2 | radon in yard | 1 |
| 1 | 2 | radon home monitoring | 22 |
| 1 | 2 | radon code | 130 |
| 1 | 2 | qwerty | 42,599 |
| 1 | 2 | public heath problems | 1 |
| 1 | 2 | pictures of lunges | 58,513 |
| 1 | 2 | municipal land use law | 1 |
| 1 | 2 | mold moisture your home | 7 |
| 1 | 2 | mitigation contractors | 42,628 |
| 1 | 2 | measurement | 58,533 |
| 1 | 2 | madison county il | 176 |
| 1 | 2 | license requirements | 6 |
| 1 | 2 | jeF WORLD OF GOLF | 0 |