Detailed Radon County Statistics


No. = Number of radon tests done in the county, Max = Maximum radon concentration measured in the county
 Min = Minimum radon concentration measured in the county, AM = Arithmetic mean radon concentration
 GM = Geometric mean radon concentration, SD = Standard deviation, CV =Coefficient of variation
Md = Median radon concentration, Q1 = First quartile radon concentration, Q3 = third quartile radon concentration
All concentrations are in units of pico-Curies of radiation per liter of air ( pCi/l ).

Note: The statistics are based on 407,730 data points

 

COUNTY NAME No. Max Min AM GM SD CV Md Q1 Q3
ADAMS 240 49.7 0.1 3.9 1.3 7.5 1.9 1.3 0.3 3.7
ALLEN 945 114.0 0.1 6.4 3.7 8.4 1.3 4.2 1.9 7.6
ASHLAND 1677 565.8 0.1 8.6 4.1 22.3 2.6 4.3 2.1 8.1
ASHTABULA 1170 210.0 0.1 3.9 1.8 9.6 2.5 1.7 0.9 3.6
ATHENS 1143 82.1 0.1 4.8 3.2 5.3 1.1 3.5 1.7 6.3
AUGLAIZE 634 64.5 0.1 7.0 4.2 7.0 1.0 4.9 2.2 9.4
BELMONT 1652 288.6 0.1 7.2 3.4 16.7 2.3 3.2 1.8 6.2
BROWN 234 26.0 0.1 3.1 1.8 3.6 1.2 1.9 0.9 4.0
BUTLER 13517 470.0 0.1 7.0 3.2 25.7 3.7 3.5 1.6 6.6
CARROLL 842 451.9 0.1 13.2 4.7 31.7 2.4 4.3 2.0 9.9
CHAMPAIGN 2162 860.0 0.1 9.8 4.7 25.7 2.6 5.1 2.2 10.8
CLARK 4745 750.1 0.1 7.9 4.3 17.9 2.3 4.7 2.3 9.3
CLERMONT 7061 470.8 0.1 4.9 3.1 7.6 1.6 3.4 1.7 6.1
CLINTON 723 144.0 0.1 5.1 3.0 8.4 1.6 3.2 1.6 5.9
COLUMBIANA 2049 820.0 0.1 9.5 4.1 24.6 2.6 3.7 1.9 8.0
COSHOCTON 426 259.4 0.1 13.9 5.8 26.3 1.9 5.4 2.3 12.6
CRAWFORD 1081 163.0 0.1 6.5 3.3 11.3 1.7 3.9 1.7 7.4
CUYAHOGA 31019 656.2 0.1 3.0 1.9 7.3 2.5 1.9 1.1 3.4
DARKE 1075 125.0 0.1 7.9 4.4 10.1 1.3 4.9 2.4 9.6
DEFIANCE 471 29.9 0.1 3.1 2.1 3.2 1.0 2.1 1.2 4.0
DELAWARE 15583 735.0 0.1 7.4 4.7 11.2 1.5 5.4 2.8 9.4
ERIE 3024 279.2 0.1 7.1 3.8 13.1 1.9 3.9 1.9 7.7
FAIRFIELD 4544 481.8 0.1 9.7 5.2 17.4 1.8 6.1 2.7 11.8
FAYETTE 179 300.0 0.1 7.2 3.3 22.8 3.2 3.8 1.8 7.8
FRANKLIN 67269 939.0 0.1 8.7 5.2 12.0 1.4 5.8 2.8 10.9
FULTON 479 48.1 0.1 4.2 2.5 4.5 1.1 2.9 1.2 5.5
GALLIA 172 24.0 0.1 2.7 1.9 2.8 1.0 1.9 1.1 3.5
GEAUGA 3550 733.8 0.1 3.2 2.1 13.5 4.2 2.1 1.3 3.5
GREENE 12036 590.0 0.1 7.0 4.0 10.6 1.5 4.4 2.1 8.4
GUERNSEY 444 115.1 0.1 5.9 3.0 10.9 1.8 3.0 1.4 6.4
HAMILTON 31041 316.7 0.1 3.4 2.2 4.7 1.4 2.3 1.2 4.2
HANCOCK 2357 130.0 0.1 5.1 3.2 6.7 1.3 3.3 1.7 6.4
HARDIN 303 57.1 0.1 4.7 3.0 5.8 1.2 3.1 1.4 5.7
HARRISON 210 210.0 0.1 15.2 6.3 25.6 1.7 5.1 2.3 15.6
HENRY 221 32.7 0.1 4.3 2.6 4.3 1.0 3.1 1.7 5.4
HIGHLAND 259 74.9 0.1 4.9 2.7 6.9 1.4 3.2 1.4 6.1
HOCKING 329 238.0 0.1 9.4 4.3 20.9 2.2 4.5 2.1 10.3
HOLMES 364 228.0 0.1 11.0 5.1 21.4 1.9 4.9 2.3 10.6
HURON 1627 499.6 0.1 10.2 4.6 21.7 2.1 4.4 2.1 9.6
JACKSON 185 24.3 0.1 3.5 2.1 3.9 1.1 2.2 1.1 4.2
JEFFERSON 770 927.6 0.1 11.0 3.9 48.1 4.4 3.6 1.9 7.4
KNOX 5577 844.2 0.1 23.3 7.1 51.0 2.2 6.4 2.5 19.6
LAKE 5800 221.6 0.1 3.8 2.1 7.4 2.0 2.2 1.2 3.9
LAWRENCE 220 333.4 0.1 4.6 1.9 22.7 5.0 1.9 0.9 3.3
LICKING 15700 1400.0 0.1 16.5 7.5 33.1 2.0 7.4 3.4 17.1
LOGAN 1780 1404.0 0.1 12.8 6.0 39.4 3.1 6.3 2.9 12.9
LORAIN 9280 618.2 0.1 4.8 2.9 8.5 1.8 3.2 1.6 5.8
LUCAS 10758 260.0 0.1 3.9 2.2 5.7 1.5 2.3 1.1 4.6
MADISON 1484 104.0 0.1 8.2 5.2 9.6 1.2 5.5 2.9 9.9
MAHONING 3934 220.0 0.1 3.5 2.2 7.9 2.3 2.4 1.4 4.0
MARION 1308 67.1 0.1 6.8 4.0 7.5 1.1 4.4 1.9 8.7
MEDINA 7640 169.3 0.1 4.2 2.9 5.2 1.2 3.1 1.8 5.1
MEIGS 92 7.2 0.1 2.1 1.5 1.6 0.7 1.8 0.9 3.2
MERCER 582 56.1 0.1 6.8 4.0 7.9 1.2 4.4 2.1 8.4
MIAMI 4663 252.0 0.1 8.2 4.9 11.5 1.4 5.1 2.6 9.7
MONROE 145 39.3 0.1 5.2 3.0 6.6 1.3 3.2 1.5 5.9
MONTGOMERY 30450 440.7 0.1 5.8 3.4 9.4 1.6 3.5 1.7 6.9
MORGAN 67 33.9 0.1 5.0 3.3 5.6 1.1 3.4 2.1 6.2
MORROW 627 77.2 0.1 7.5 4.2 9.9 1.3 4.4 2.1 8.8
MUSKINGUM 1562 171.7 0.1 7.3 3.6 14.6 2.0 3.8 1.9 7.1
NOBLE 66 15.2 0.1 3.5 2.2 3.5 1.0 2.2 1.3 4.6
OTTAWA 1158 320.0 0.1 5.3 2.8 13.3 2.5 3.0 1.3 6.2
PAULDING 93 13.2 0.1 3.6 2.3 3.4 0.9 2.5 1.1 4.5
PERRY 432 365.3 0.1 10.1 4.1 29.8 2.9 3.9 2.2 7.5
PICKAWAY 992 132.2 0.1 11.2 7.0 12.8 1.1 7.4 3.7 13.8
PIKE 1079 74.9 0.1 6.5 3.0 8.7 1.3 4.2 1.4 8.1
PORTAGE 4132 159.3 0.1 4.1 2.7 5.3 1.3 2.7 1.5 4.9
PREBLE 1046 90.3 0.1 6.9 3.7 8.7 1.3 4.0 1.7 8.5
PUTNAM 365 52.5 0.1 6.3 4.0 6.6 1.1 4.4 2.3 7.1
RICHLAND 4246 370.8 0.1 9.2 4.5 20.1 2.2 4.5 2.3 8.7
ROSS 1464 223.4 0.1 9.8 5.0 16.5 1.7 5.7 2.4 10.7
SANDUSKY 1090 166.6 0.1 6.9 3.7 11.6 1.7 4.0 1.8 7.5
SCIOTO 430 29.5 0.1 3.4 1.9 4.1 1.2 2.0 1.0 3.9
SENECA 2464 187.9 0.1 7.6 4.2 11.1 1.4 4.7 2.2 8.9
SHELBY 1103 111.1 0.1 7.3 4.5 8.1 1.1 5.1 2.5 9.1
STARK 11715 580.0 0.1 6.9 3.9 12.9 1.9 4.1 2.1 7.8
SUMMIT 21731 908.1 0.1 5.2 2.7 24.1 4.6 2.8 1.5 5.0
TRUMBULL 2156 71.7 0.1 3.2 2.1 3.9 1.2 2.2 1.3 3.9
TUSCARAWAS 2404 283.1 0.1 9.1 4.8 17.4 1.9 5.0 2.4 9.5
UNION 2754 101.7 0.1 5.5 3.5 6.0 1.1 4.0 2.0 7.0
VAN WERT 143 38.1 0.1 6.5 3.8 6.8 1.0 4.4 1.8 7.4
VINTON 35 16.4 0.1 3.0 1.7 3.7 1.2 1.7 0.9 3.5
WARREN 13986 219.0 0.1 4.9 3.2 5.6 1.1 3.5 1.7 6.3
WASHINGTON 1093 91.9 0.1 4.6 2.8 6.7 1.4 2.8 1.5 5.1
WAYNE 3584 498.4 0.1 9.9 4.4 25.5 2.6 4.2 2.3 8.5
WILLIAMS 216 67.8 0.1 6.2 3.2 9.1 1.5 3.1 1.5 7.5
WOOD 6751 145.5 0.1 4.5 2.6 5.6 1.2 2.9 1.2 5.8
WYANDOT 666 49.2 0.1 5.7 3.4 7.3 1.3 3.4 1.8 6.3
UNKNOWN 855 182.3 0.1 5.4 2.7 9.9 1.8 2.9 1.4 5.8

 

 

                                                                                                       Page updated July, 2017  

                                                       (Based on  407,730 radon data points)


 

  Top of Page                                                                                                                                                    Main Page