| Total requests for Nov 2011: 891 |
| Unique requests | Total requests | Query | Documents returned |
| 21 | 23 | radon | 10,976 |
| 10 | 12 | radon test kit | 84 |
| 7 | 8 | radon mitigation | 12,068 |
| 5 | 8 | asbestos | 1,669 |
| 5 | 6 | radon in water | 15,213 |
| 4 | 8 | lung cancer | 12,037 |
| 4 | 5 | radon testing checklist | 31 |
| 4 | 5 | lead | 60 |
| 4 | 4 | what is radon | 242 |
| 4 | 4 | EPA 402-R-95-013 | 3 |
| 4 | 4 | Carbon Monoxide | 6 |
| 4 | 4 | 402-R-95-012 | 11 |
| 3 | 6 | 402-K-008 | 15,667 |
| 3 | 5 | MTBE | 17,699 |
| 3 | 4 | mold | 24 |
| 3 | 4 | map | 189 |
| 3 | 4 | granit | 7 |
| 3 | 3 | symptoms | 3 |
| 3 | 3 | radon testing | 227 |
| 3 | 3 | radon map | 189 |
| 3 | 3 | radon levels | 182 |
| 3 | 3 | mitigation | 84 |
| 3 | 3 | granite countertop | 4 |
| 3 | 3 | canada | 3 |
| 2 | 3 | what are the symptoms of radon gas | 30,969 |
| 2 | 3 | relative percent difference | 30,702 |
| 2 | 3 | radon limits | 27 |
| 2 | 3 | radon inspectors | 41 |
| 2 | 3 | ohio | 48 |
| 2 | 3 | insulation | 2 |
| 2 | 2 | second hand smoke | 4 |
| 2 | 2 | radon schools | 94 |
| 2 | 2 | radon mitigation standards | 70 |
| 2 | 2 | radon in schools | 95 |
| 2 | 2 | radon detector | 71 |
| 2 | 2 | radiation | 109 |
| 2 | 2 | new jersey | 48 |
| 2 | 2 | kansas | 62 |
| 2 | 2 | indoor air quality | 186 |
| 2 | 2 | formaldehyde | 3 |
| 2 | 2 | epa | 120 |
| 2 | 2 | emf | 0 |
| 2 | 2 | crawling spaces | 9 |
| 2 | 2 | check my epa score | 22 |
| 2 | 2 | Methyl tertiary butyl ether | 0 |
| 2 | 2 | Lead Paint | 4 |
| 2 | 2 | Florida | 40 |
| 2 | 2 | Financial Assistance | 4 |
| 1 | 5 | radon dose cnverion factors | 17,759 |
| 1 | 5 | condo | 36,079 |
| 1 | 4 | types of mold | 19,953 |
| 1 | 4 | type of radiation emit of radon | 21,180 |
| 1 | 4 | sac-4 | 56,499 |
| 1 | 4 | riesgo en hambientes no ventilates | 52,069 |
| 1 | 4 | riesgo de salu de los jovene | 11,724 |
| 1 | 4 | drinking water mcl | 1 |
| 1 | 4 | contaminants | 48,801 |
| 1 | 4 | Mitigation for crawlspaces | 161 |
| 1 | 3 | voc | 28,368 |
| 1 | 3 | tobacco smoke | 27,671 |
| 1 | 3 | technical factsheet | 60,334 |
| 1 | 3 | riesgos para la salud el alcohol | 0 |
| 1 | 3 | radontestkitsinphiladelphia | 16 |
| 1 | 3 | radon water test | 53,465 |
| 1 | 3 | radon measurement protocol | 28,537 |
| 1 | 3 | radon measurement manual | 22 |
| 1 | 3 | radon inspector's duties | 62,068 |
| 1 | 3 | radon in florida schools | 9 |
| 1 | 3 | radon gas monitor | 52,201 |
| 1 | 3 | radon dose cnvefactors | 29,599 |
| 1 | 3 | radioisotopes cancer | 57,466 |
| 1 | 3 | primary drinking water standards | 6 |
| 1 | 3 | mold in home | 408 |
| 1 | 3 | lead pamphlets | 6 |
| 1 | 3 | field blank | 6 |
| 1 | 3 | fact sheets | 8,889 |
| 1 | 3 | ecosystems | 29,170 |
| 1 | 3 | cost | 33,714 |
| 1 | 3 | conductas de riesgo para la salud | 31,666 |
| 1 | 3 | Tier II Reporting | 0 |
| 1 | 3 | Texas | 58,743 |
| 1 | 3 | Childrens obesity | 8,733 |
| 1 | 3 | Chemical Oxygen Demand | 2,356 |
| 1 | 3 | 3310.1 | 0 |
| 1 | 3 | 10% relative percent difference phosphours | 44,633 |
| 1 | 2 | wl | 6 |
| 1 | 2 | where to position test | 22 |
| 1 | 2 | what happens to radon gas once it's mitigated outside a home | 0 |
| 1 | 2 | what State has highest incidence of Radon | 41,900 |
| 1 | 2 | waterproof | 52,002 |
| 1 | 2 | warren county illinois | 43,600 |
| 1 | 2 | radon testing commercial building | 41,860 |
| 1 | 2 | radon standards | 47,385 |
| 1 | 2 | radon measurement | 67 |
| 1 | 2 | radon gas sump pump | 50,002 |
| 1 | 2 | radon gas disclosure form | 50,501 |
| 1 | 2 | radon dose factors | 41,502 |
| 1 | 2 | radon children | 39,640 |
| 1 | 2 | radon amcl | 52,500 |
| 1 | 2 | proper floor drain | 44,102 |
| 1 | 2 | price range of a mitigation system | 42,951 |
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