NYS DOH Measured Basement, First Floor Screening Radon Levels (October 2018)
County Test
Location
Homes
Tested
Radon Screening Values (pCi/L) Number of Homes
Average GEO Mean GEO SD MAXIMUM <4 pCi/L ≥4 & <20 pCi/L >=20 pCi/L
ALBANY Basement 2,843 5.40 2.00 3.33 394.60 2,139 584 120
ALBANY 1st Floor 1,538 1.93 0.67 3.69 89.80 1,401 115 22
ALLEGANY Basement 538 10.72 4.67 3.80 216.60 242 221 75
ALLEGANY 1st Floor 241 3.44 1.44 3.79 56.70 187 47 7
BROOME Basement 3,353 5.93 2.87 3.28 210.70 2,083 1,076 194
BROOME 1st Floor 954 3.12 1.45 3.36 72.90 757 182 15
CATTARAUGUS Basement 1,481 9.43 4.20 3.35 522.10 733 583 165
CATTARAUGUS 1st Floor 500 4.04 1.75 3.64 174.40 360 133 7
CAYUGA Basement 1,309 4.71 2.82 2.64 145.60 877 394 38
CAYUGA 1st Floor 1,172 2.36 1.25 3.06 91.20 1,000 164 8
CHAUTAUQUA Basement 1,031 6.06 2.74 3.50 141.00 663 311 57
CHAUTAUQUA 1st Floor 261 2.81 1.09 3.78 58.70 216 40 5
CHEMUNG Basement 2,075 12.40 7.01 3.23 118.30 612 1,046 417
CHEMUNG 1st Floor 474 6.40 2.57 4.17 224.90 282 165 27
CHENANGO Basement 678 9.68 4.91 3.31 105.50 284 309 85
CHENANGO 1st Floor 462 3.66 1.44 4.31 75.20 349 102 11
CLINTON Basement 275 2.07 1.23 2.78 23.20 244 30 1
CLINTON 1st Floor 112 1.12 0.58 3.06 11.60 107 5 0
COLUMBIA Basement 718 6.93 3.71 3.18 298.00 353 321 44
COLUMBIA 1st Floor 353 2.98 1.50 3.59 24.10 269 82 2
CORTLAND Basement 1,789 14.44 8.36 3.24 125.30 425 955 409
CORTLAND 1st Floor 831 6.56 3.32 3.72 76.70 424 354 53
DELAWARE Basement 746 8.36 4.03 3.41 180.40 362 315 69
DELAWARE 1st Floor 685 3.74 1.71 3.54 62.60 507 156 22
DUTCHESS Basement 3,297 6.84 3.98 3.02 135.20 1,531 1,583 183
DUTCHESS 1st Floor 1,162 3.13 1.64 3.44 61.10 885 267 10
ERIE Basement 7,578 5.19 1.63 3.91 391.10 5,887 1,282 409
ERIE 1st Floor 1,448 3.40 1.05 4.05 144.70 1,200 196 52
ESSEX Basement 169 1.61 1.05 2.44 26.30 160 8 1
ESSEX 1st Floor 61 0.72 0.46 2.56 4.10 60 1 0
FRANKLIN Basement 116 3.38 0.96 3.12 133.70 110 4 2
FRANKLIN 1st Floor 52 3.03 0.49 4.42 46.80 48 1 3
FULTON Basement 157 2.63 1.47 2.79 30.10 134 20 3
FULTON 1st Floor 49 1.11 0.57 3.07 10.90 47 2 0
GENESEE Basement 788 7.46 3.22 3.03 322.70 511 225 52
GENESEE 1st Floor 298 4.32 1.29 4.01 170.40 244 41 13
GREENE Basement 366 6.90 3.02 3.35 245.20 222 125 19
GREENE 1st Floor 427 2.36 0.75 3.56 205.40 392 29 6
HAMILTON Basement 23 1.99 1.15 2.82 12.70 20 3 0
HAMILTON 1st Floor 4 0.40 0.36 1.69 0.70 4 0 0
HERKIMER Basement 312 6.41 3.55 2.97 74.10 173 120 19
HERKIMER 1st Floor 165 2.95 1.37 3.69 31.80 123 40 2
JEFFERSON Basement 372 5.29 2.12 3.41 336.30 264 95 13
JEFFERSON 1st Floor 184 1.76 0.82 3.23 35.00 167 15 2
LEWIS Basement 112 4.52 2.32 2.82 107.60 81 28 3
LEWIS 1st Floor 53 2.51 1.32 3.49 10.80 41 12 0
LIVINGSTON Basement 982 8.12 3.57 3.30 157.60 556 341 85
LIVINGSTON 1st Floor 1,337 4.72 1.88 3.65 196.80 978 300 59
MADISON Basement 1,208 6.18 3.25 3.01 203.60 702 443 63
MADISON 1st Floor 525 2.64 1.31 3.22 79.00 440 81 4
MONROE Basement 2,940 3.62 1.75 2.77 405.60 2,439 434 67
MONROE 1st Floor 4,791 0.80 0.41 2.75 259.50 4,723 59 9
MONTGOMERY Basement 254 4.06 2.27 3.14 44.00 169 80 5
MONTGOMERY 1st Floor 324 0.90 0.44 2.89 18.60 310 14 0
NASSAU Basement 792 1.50 1.03 2.40 13.90 745 47 0
NASSAU 1st Floor 241 0.75 0.46 2.69 12.60 238 3 0
NEW YORK Basement 1,478 1.65 0.92 2.88 49.50 1,370 101 7
NEW YORK 1st Floor 393 1.18 0.41 3.09 146.70 381 10 2
NIAGARA Basement 1,541 1.92 1.12 2.68 65.40 1,392 141 8
NIAGARA 1st Floor 331 0.91 0.50 2.83 13.00 324 7 0
ONEIDA Basement 2,276 6.16 2.97 3.26 601.40 1,395 752 129
ONEIDA 1st Floor 820 3.27 1.27 4.00 83.10 642 158 20
ONONDAGA Basement 9,572 8.05 3.58 3.59 348.80 5,091 3,651 830
ONONDAGA 1st Floor 2,268 4.66 1.72 4.15 233.60 1,629 547 92
ONTARIO Basement 702 5.37 3.03 2.83 125.00 443 230 29
ONTARIO 1st Floor 669 1.20 0.47 3.52 24.90 624 41 4
ORANGE Basement 2,482 5.48 2.88 3.02 198.80 1,524 866 92
ORANGE 1st Floor 1,053 2.74 1.33 3.21 128.70 871 173 9
ORLEANS Basement 520 3.60 1.92 2.77 86.40 412 97 11
ORLEANS 1st Floor 81 1.36 0.76 2.89 16.40 75 6 0
OSWEGO Basement 291 2.77 1.49 2.76 56.30 251 35 5
OSWEGO 1st Floor 125 1.67 0.53 3.50 42.80 119 3 3
OTSEGO Basement 1,483 8.88 4.49 3.36 350.80 649 690 144
OTSEGO 1st Floor 1,984 3.85 1.96 3.39 87.60 1,422 525 37
OUT OF STATE Basement 198 3.91 2.20 3.03 52.10 138 57 3
OUT OF STATE 1st Floor 60 2.39 1.19 3.66 19.50 51 9 0
PUTNAM Basement 1,073 4.68 2.63 2.87 235.20 703 343 27
PUTNAM 1st Floor 386 3.29 1.49 3.11 254.70 322 59 5
RENSSELAER Basement 2,283 6.90 3.43 3.43 134.70 1,230 888 165
RENSSELAER 1st Floor 1,158 2.45 1.00 3.83 43.00 978 164 16
ROCKLAND Basement 2,777 2.53 1.55 2.59 123.70 2,365 389 23
ROCKLAND 1st Floor 847 1.33 0.79 2.69 23.30 805 38 4
SARATOGA Basement 1,655 4.19 2.27 2.94 142.20 1,191 427 37
SARATOGA 1st Floor 527 2.24 1.05 3.27 63.10 463 60 4
SCHENECTADY Basement 1,265 4.72 2.05 3.04 186.40 972 248 45
SCHENECTADY 1st Floor 573 2.15 0.71 3.63 127.00 516 52 5
SCHOHARIE Basement 361 6.11 3.13 3.14 94.00 215 121 25
SCHOHARIE 1st Floor 260 2.05 0.99 3.04 58.90 230 29 1
SCHUYLER Basement 224 6.04 3.42 2.91 80.40 128 86 10
SCHUYLER 1st Floor 244 1.71 0.82 3.30 18.60 219 25 0
SENECA Basement 216 3.11 1.90 2.77 25.50 173 42 1
SENECA 1st Floor 84 1.30 0.80 2.90 6.80 79 5 0
ST.LAWRENCE Basement 351 2.90 1.55 2.79 66.50 302 41 8
ST.LAWRENCE 1st Floor 184 1.10 0.64 2.78 12.40 177 7 0
STEUBEN Basement 1,524 11.75 6.14 3.39 415.20 516 755 253
STEUBEN 1st Floor 814 4.47 1.89 3.93 97.60 570 218 26
SUFFOLK Basement 537 1.83 1.18 2.55 42.60 496 38 3
SUFFOLK 1st Floor 221 0.90 0.51 2.77 10.80 216 5 0
SULLIVAN Basement 239 3.76 2.02 3.07 46.00 174 59 6
SULLIVAN 1st Floor 76 1.99 1.07 2.96 23.30 68 7 1
TIOGA Basement 1,023 10.89 4.97 3.66 303.50 435 450 138
TIOGA 1st Floor 394 5.15 2.26 3.89 67.50 252 121 21
TOMPKINS Basement 1,861 5.01 2.86 2.93 206.80 1,149 655 57
TOMPKINS 1st Floor 905 2.29 1.19 3.20 56.10 775 124 6
ULSTER Basement 1,450 5.17 2.90 2.79 175.70 922 480 48
ULSTER 1st Floor 675 2.34 1.14 3.14 109.50 590 80 5
WARREN Basement 297 3.35 1.69 2.83 90.10 245 46 6
WARREN 1st Floor 86 2.39 0.87 3.57 44.80 77 6 3
WASHINGTON Basement 595 6.41 3.28 3.25 121.90 340 219 36
WASHINGTON 1st Floor 379 2.76 1.17 3.79 58.00 311 62 6
WAYNE Basement 617 4.60 2.55 2.83 63.60 443 149 25
WAYNE 1st Floor 681 1.23 0.52 3.75 21.30 646 34 1
WESTCHESTER Basement 2,618 2.85 1.74 2.66 95.40 2,167 424 27
WESTCHESTER 1st Floor 757 1.45 0.82 2.75 77.70 717 38 2
WYOMING Basement 545 9.62 4.30 3.66 226.20 261 222 62
WYOMING 1st Floor 238 3.34 1.42 3.72 41.60 188 44 6
YATES Basement 226 5.57 3.27 2.82 69.00 130 85 11
YATES 1st Floor 141 2.60 1.44 2.95 29.80 120 20 1