NYS DOH Measured Basement, First Floor Screening Radon Levels (October 2019)
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 2,928 5.37 1.99 3.33 394.60 2,209 596 123
ALBANY 1st Floor 1,626 1.96 0.69 3.71 89.80 1,474 129 23
ALLEGANY Basement 546 10.67 4.68 3.78 216.60 245 226 75
ALLEGANY 1st Floor 244 3.49 1.46 3.80 56.70 187 50 7
BROOME Basement 3,399 5.87 2.80 3.36 210.70 2,125 1,079 195
BROOME 1st Floor 1,119 2.80 1.14 3.73 72.90 919 184 16
CATTARAUGUS Basement 1,490 9.47 4.21 3.36 522.10 738 585 167
CATTARAUGUS 1st Floor 508 4.01 1.74 3.64 174.40 367 134 7
CAYUGA Basement 1,341 4.70 2.83 2.63 145.60 897 405 39
CAYUGA 1st Floor 1,206 2.35 1.25 3.06 91.20 1,029 169 8
CHAUTAUQUA Basement 1,034 6.07 2.75 3.50 141.00 664 313 57
CHAUTAUQUA 1st Floor 263 2.84 1.10 3.80 58.70 217 41 5
CHEMUNG Basement 2,084 12.38 6.99 3.23 118.30 618 1,048 418
CHEMUNG 1st Floor 477 6.46 2.58 4.19 224.90 283 166 28
CHENANGO Basement 714 9.26 4.46 3.53 105.50 319 310 85
CHENANGO 1st Floor 496 3.67 1.32 4.52 75.20 380 102 14
CLINTON Basement 296 2.07 1.21 2.82 23.20 263 32 1
CLINTON 1st Floor 120 1.08 0.55 3.08 11.60 115 5 0
COLUMBIA Basement 747 6.99 3.74 3.17 298.00 367 334 46
COLUMBIA 1st Floor 359 2.99 1.51 3.58 24.10 272 85 2
CORTLAND Basement 1,848 14.38 8.29 3.25 125.30 450 975 423
CORTLAND 1st Floor 927 6.56 3.34 3.70 76.70 471 397 59
DELAWARE Basement 752 8.34 4.02 3.41 180.40 366 317 69
DELAWARE 1st Floor 690 3.73 1.70 3.56 62.60 511 157 22
DUTCHESS Basement 3,309 6.84 3.98 3.02 135.20 1,536 1,588 185
DUTCHESS 1st Floor 1,170 3.14 1.63 3.45 61.10 891 268 11
ERIE Basement 7,633 5.18 1.63 3.91 391.10 5,932 1,290 411
ERIE 1st Floor 1,452 3.43 1.05 4.06 144.70 1,202 197 53
ESSEX Basement 170 1.61 1.05 2.44 26.30 161 8 1
ESSEX 1st Floor 63 0.73 0.47 2.54 4.10 62 1 0
FRANKLIN Basement 119 3.33 0.97 3.09 133.70 113 4 2
FRANKLIN 1st Floor 53 2.97 0.47 4.42 46.80 49 1 3
FULTON Basement 159 2.61 1.46 2.78 30.10 136 20 3
FULTON 1st Floor 50 1.09 0.55 3.11 10.90 48 2 0
GENESEE Basement 824 7.37 3.21 3.01 322.70 535 236 53
GENESEE 1st Floor 309 4.26 1.30 3.98 170.40 253 43 13
GREENE Basement 371 6.83 2.98 3.37 245.20 227 125 19
GREENE 1st Floor 428 2.36 0.75 3.56 205.40 393 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 313 6.41 3.56 2.97 74.10 173 121 19
HERKIMER 1st Floor 167 2.95 1.39 3.67 31.80 125 40 2
JEFFERSON Basement 395 6.27 2.18 3.58 336.30 281 96 18
JEFFERSON 1st Floor 196 2.50 0.86 3.49 122.20 175 17 4
LEWIS Basement 113 5.90 2.41 3.02 160.90 81 28 4
LEWIS 1st Floor 54 2.49 1.31 3.45 10.80 42 12 0
LIVINGSTON Basement 999 8.05 3.55 3.29 157.60 567 346 86
LIVINGSTON 1st Floor 1,347 4.70 1.87 3.64 196.80 987 301 59
MADISON Basement 1,231 6.13 3.22 3.02 203.60 718 450 63
MADISON 1st Floor 531 2.63 1.31 3.22 79.00 445 82 4
MONROE Basement 3,014 3.59 1.75 2.76 405.60 2,502 445 67
MONROE 1st Floor 4,813 0.80 0.41 2.75 259.50 4,745 59 9
MONTGOMERY Basement 255 4.04 2.26 3.14 44.00 170 80 5
MONTGOMERY 1st Floor 325 0.90 0.44 2.89 18.60 311 14 0
NASSAU Basement 796 1.49 1.02 2.41 13.90 749 47 0
NASSAU 1st Floor 242 0.75 0.45 2.69 12.60 239 3 0
NEW YORK Basement 1,496 1.64 0.92 2.87 49.50 1,387 102 7
NEW YORK 1st Floor 396 1.18 0.41 3.09 146.70 384 10 2
NIAGARA Basement 1,564 1.93 1.13 2.67 65.40 1,413 143 8
NIAGARA 1st Floor 360 0.88 0.49 2.86 13.00 353 7 0
ONEIDA Basement 2,292 6.16 2.98 3.25 601.40 1,401 762 129
ONEIDA 1st Floor 828 3.26 1.27 3.99 83.10 648 160 20
ONONDAGA Basement 9,742 8.02 3.56 3.59 348.80 5,186 3,717 839
ONONDAGA 1st Floor 2,296 4.65 1.71 4.17 233.60 1,647 556 93
ONTARIO Basement 713 5.36 3.01 2.84 125.00 450 234 29
ONTARIO 1st Floor 675 1.21 0.47 3.53 24.90 630 41 4
ORANGE Basement 2,492 5.48 2.88 3.03 198.80 1,530 870 92
ORANGE 1st Floor 1,057 2.73 1.33 3.21 128.70 874 174 9
ORLEANS Basement 521 3.60 1.92 2.77 86.40 413 97 11
ORLEANS 1st Floor 81 1.36 0.76 2.89 16.40 75 6 0
OSWEGO Basement 296 2.76 1.50 2.75 56.30 255 36 5
OSWEGO 1st Floor 125 1.67 0.53 3.50 42.80 119 3 3
OTSEGO Basement 1,504 8.84 4.49 3.34 350.80 659 701 144
OTSEGO 1st Floor 2,011 3.83 1.95 3.39 87.60 1,443 531 37
OUT OF STATE Basement 199 3.90 2.20 3.02 52.10 139 57 3
OUT OF STATE 1st Floor 60 2.39 1.19 3.66 19.50 51 9 0
PUTNAM Basement 1,097 4.73 2.64 2.89 235.20 716 352 29
PUTNAM 1st Floor 393 3.32 1.49 3.14 254.70 328 59 6
RENSSELAER Basement 2,372 6.79 3.37 3.43 134.70 1,298 907 167
RENSSELAER 1st Floor 1,185 2.43 1.00 3.80 43.00 1,003 166 16
ROCKLAND Basement 2,792 2.53 1.55 2.60 123.70 2,378 391 23
ROCKLAND 1st Floor 885 1.33 0.80 2.68 23.30 843 38 4
SARATOGA Basement 1,694 4.17 2.27 2.94 142.20 1,218 439 37
SARATOGA 1st Floor 534 2.24 1.05 3.26 63.10 470 60 4
SCHENECTADY Basement 1,292 4.66 2.03 3.04 186.40 996 251 45
SCHENECTADY 1st Floor 586 2.13 0.70 3.64 127.00 528 53 5
SCHOHARIE Basement 372 6.03 3.11 3.11 94.00 223 124 25
SCHOHARIE 1st Floor 273 2.07 1.00 3.06 58.90 240 32 1
SCHUYLER Basement 244 6.09 3.45 2.90 80.40 138 93 13
SCHUYLER 1st Floor 288 1.81 0.87 3.39 18.60 255 33 0
SENECA Basement 220 3.07 1.88 2.77 25.50 177 42 1
SENECA 1st Floor 91 1.26 0.77 2.88 6.80 86 5 0
ST.LAWRENCE Basement 353 2.89 1.54 2.79 66.50 304 41 8
ST.LAWRENCE 1st Floor 184 1.10 0.64 2.78 12.40 177 7 0
STEUBEN Basement 1,560 11.84 6.19 3.39 415.20 529 769 262
STEUBEN 1st Floor 931 4.33 1.77 4.02 97.60 661 242 28
SUFFOLK Basement 543 1.83 1.18 2.56 42.60 502 38 3
SUFFOLK 1st Floor 223 0.90 0.51 2.77 10.80 218 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 1,029 10.85 4.93 3.69 303.50 439 452 138
TIOGA 1st Floor 503 4.56 1.91 4.06 67.50 338 144 21
TOMPKINS Basement 1,961 5.07 2.88 2.95 206.80 1,205 694 62
TOMPKINS 1st Floor 952 2.33 1.20 3.21 56.10 816 129 7
ULSTER Basement 1,458 5.16 2.90 2.79 175.70 929 481 48
ULSTER 1st Floor 682 2.33 1.14 3.13 109.50 596 81 5
WARREN Basement 301 3.32 1.68 2.85 90.10 249 46 6
WARREN 1st Floor 88 2.37 0.87 3.54 44.80 79 6 3
WASHINGTON Basement 598 6.39 3.26 3.27 121.90 342 220 36
WASHINGTON 1st Floor 380 2.75 1.17 3.78 58.00 312 62 6
WAYNE Basement 628 4.57 2.53 2.83 63.60 452 151 25
WAYNE 1st Floor 682 1.23 0.52 3.75 21.30 647 34 1
WESTCHESTER Basement 2,638 2.85 1.74 2.66 95.40 2,184 427 27
WESTCHESTER 1st Floor 766 1.45 0.82 2.77 77.70 725 39 2
WYOMING Basement 553 9.58 4.31 3.64 226.20 264 226 63
WYOMING 1st Floor 239 3.33 1.41 3.75 41.60 189 44 6
YATES Basement 245 5.52 3.19 2.87 69.00 143 90 12
YATES 1st Floor 162 2.64 1.45 3.00 29.80 137 24 1