NYS DOH Measured Basement, First Floor Screening Radon Levels (December 2020)
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 2,982 5.36 1.99 3.33 394.60 2,251 606 125
ALBANY 1st Floor 1,637 1.96 0.69 3.71 89.80 1,484 130 23
ALLEGANY Basement 548 10.66 4.68 3.77 216.60 246 227 75
ALLEGANY 1st Floor 245 3.50 1.47 3.81 56.70 187 51 7
BROOME Basement 3,415 5.85 2.80 3.35 210.70 2,137 1,083 195
BROOME 1st Floor 1,119 2.80 1.14 3.73 72.90 919 184 16
CATTARAUGUS Basement 1,496 9.47 4.21 3.36 522.10 742 586 168
CATTARAUGUS 1st Floor 510 4.03 1.75 3.64 174.40 368 135 7
CAYUGA Basement 1,355 4.68 2.82 2.63 145.60 908 408 39
CAYUGA 1st Floor 1,211 2.35 1.25 3.06 91.20 1,034 169 8
CHAUTAUQUA Basement 1,036 6.06 2.75 3.49 141.00 665 314 57
CHAUTAUQUA 1st Floor 263 2.84 1.10 3.80 58.70 217 41 5
CHEMUNG Basement 2,090 12.37 6.99 3.23 118.30 621 1,051 418
CHEMUNG 1st Floor 477 6.46 2.58 4.19 224.90 283 166 28
CHENANGO Basement 719 9.23 4.45 3.53 105.50 322 312 85
CHENANGO 1st Floor 498 3.66 1.32 4.51 75.20 382 102 14
CLINTON Basement 320 2.10 1.20 2.88 23.20 283 36 1
CLINTON 1st Floor 128 1.06 0.53 3.13 11.60 123 5 0
COLUMBIA Basement 765 6.95 3.75 3.14 298.00 376 343 46
COLUMBIA 1st Floor 362 2.99 1.51 3.57 24.10 274 86 2
CORTLAND Basement 1,912 14.43 8.26 3.27 188.20 470 1,004 438
CORTLAND 1st Floor 956 6.52 3.35 3.68 76.70 484 413 59
DELAWARE Basement 753 8.33 4.02 3.41 180.40 367 317 69
DELAWARE 1st Floor 691 3.74 1.70 3.56 62.60 511 158 22
DUTCHESS Basement 3,321 6.84 3.98 3.01 135.20 1,542 1,594 185
DUTCHESS 1st Floor 1,171 3.14 1.63 3.45 61.10 892 268 11
ERIE Basement 7,678 5.17 1.63 3.91 391.10 5,966 1,299 413
ERIE 1st Floor 1,458 3.42 1.05 4.06 144.70 1,207 198 53
ESSEX Basement 175 1.64 1.08 2.45 26.30 164 10 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 55 2.88 0.47 4.38 46.80 51 1 3
FULTON Basement 160 2.61 1.47 2.77 30.10 137 20 3
FULTON 1st Floor 50 1.09 0.55 3.11 10.90 48 2 0
GENESEE Basement 866 7.58 3.23 3.05 322.70 562 248 56
GENESEE 1st Floor 316 4.19 1.30 3.94 170.40 260 43 13
GREENE Basement 373 6.81 2.98 3.36 245.20 228 126 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 319 6.50 3.62 2.97 74.10 174 125 20
HERKIMER 1st Floor 168 3.00 1.40 3.69 31.80 125 41 2
JEFFERSON Basement 429 6.33 2.19 3.60 336.30 305 104 20
JEFFERSON 1st Floor 200 2.54 0.87 3.51 122.20 178 18 4
LEWIS Basement 120 6.75 2.60 3.20 160.90 84 30 6
LEWIS 1st Floor 55 2.53 1.34 3.45 10.80 42 13 0
LIVINGSTON Basement 1,010 8.01 3.55 3.27 157.60 571 353 86
LIVINGSTON 1st Floor 1,351 4.69 1.87 3.64 196.80 991 301 59
MADISON Basement 1,247 6.16 3.23 3.02 203.60 728 455 64
MADISON 1st Floor 537 2.63 1.32 3.21 79.00 449 84 4
MONROE Basement 3,076 3.55 1.75 2.74 405.60 2,561 448 67
MONROE 1st Floor 4,824 0.81 0.41 2.75 259.50 4,756 59 9
MONTGOMERY Basement 257 4.02 2.24 3.13 44.00 172 80 5
MONTGOMERY 1st Floor 326 0.90 0.44 2.88 18.60 312 14 0
NASSAU Basement 798 1.49 1.02 2.41 13.90 751 47 0
NASSAU 1st Floor 243 0.75 0.46 2.69 12.60 240 3 0
NEW YORK Basement 1,509 1.64 0.92 2.87 49.50 1,398 104 7
NEW YORK 1st Floor 397 1.19 0.41 3.11 146.70 385 10 2
NIAGARA Basement 1,585 1.93 1.12 2.67 65.40 1,432 145 8
NIAGARA 1st Floor 393 0.88 0.48 2.85 13.00 384 9 0
ONEIDA Basement 2,309 6.21 2.99 3.26 601.40 1,409 768 132
ONEIDA 1st Floor 832 3.26 1.27 4.00 83.10 651 161 20
ONONDAGA Basement 9,863 8.01 3.55 3.60 348.80 5,267 3,750 846
ONONDAGA 1st Floor 2,304 4.64 1.70 4.17 233.60 1,655 556 93
ONTARIO Basement 723 5.34 3.01 2.84 125.00 456 238 29
ONTARIO 1st Floor 676 1.20 0.47 3.53 24.90 631 41 4
ORANGE Basement 2,510 5.47 2.88 3.03 198.80 1,542 875 93
ORANGE 1st Floor 1,060 2.74 1.33 3.21 128.70 876 175 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 298 2.79 1.51 2.76 56.30 256 37 5
OSWEGO 1st Floor 125 1.67 0.53 3.50 42.80 119 3 3
OTSEGO Basement 1,558 8.84 4.51 3.31 350.80 684 724 150
OTSEGO 1st Floor 2,030 3.81 1.94 3.41 87.60 1,459 534 37
OUT OF STATE Basement 201 3.93 2.22 3.02 52.10 139 59 3
OUT OF STATE 1st Floor 61 2.36 1.18 3.63 19.50 52 9 0
PUTNAM Basement 1,106 4.72 2.64 2.88 235.20 722 355 29
PUTNAM 1st Floor 397 3.30 1.49 3.13 254.70 331 60 6
RENSSELAER Basement 2,429 6.80 3.38 3.42 134.70 1,330 927 172
RENSSELAER 1st Floor 1,191 2.43 1.00 3.80 43.00 1,009 166 16
ROCKLAND Basement 2,848 2.52 1.54 2.59 123.70 2,428 397 23
ROCKLAND 1st Floor 928 1.33 0.80 2.66 23.30 885 39 4
SARATOGA Basement 1,728 4.16 2.27 2.93 142.20 1,242 448 38
SARATOGA 1st Floor 536 2.23 1.05 3.26 63.10 472 60 4
SCHENECTADY Basement 1,313 4.63 2.02 3.03 186.40 1,011 257 45
SCHENECTADY 1st Floor 596 2.11 0.70 3.62 127.00 538 53 5
SCHOHARIE Basement 376 6.37 3.18 3.18 94.00 223 125 28
SCHOHARIE 1st Floor 275 2.08 1.00 3.07 58.90 241 33 1
SCHUYLER Basement 252 6.28 3.50 2.93 80.40 142 96 14
SCHUYLER 1st Floor 300 1.81 0.86 3.42 18.60 266 34 0
SENECA Basement 221 3.07 1.88 2.76 25.50 178 42 1
SENECA 1st Floor 91 1.26 0.77 2.88 6.80 86 5 0
ST.LAWRENCE Basement 360 2.88 1.55 2.77 66.50 310 42 8
ST.LAWRENCE 1st Floor 187 1.10 0.64 2.76 12.40 180 7 0
STEUBEN Basement 1,606 11.89 6.14 3.41 415.20 551 786 269
STEUBEN 1st Floor 959 4.50 1.81 4.07 97.60 674 253 32
SUFFOLK Basement 545 1.82 1.18 2.56 42.60 504 38 3
SUFFOLK 1st Floor 225 0.89 0.51 2.77 10.80 220 5 0
SULLIVAN Basement 242 3.75 2.02 3.06 46.00 176 60 6
SULLIVAN 1st Floor 76 1.99 1.07 2.96 23.30 68 7 1
TIOGA Basement 1,038 10.92 4.93 3.70 303.50 444 454 140
TIOGA 1st Floor 509 4.55 1.89 4.08 67.50 343 144 22
TOMPKINS Basement 2,011 5.06 2.86 2.95 206.80 1,241 706 64
TOMPKINS 1st Floor 988 2.30 1.19 3.21 56.10 848 133 7
ULSTER Basement 1,472 5.14 2.90 2.78 175.70 938 486 48
ULSTER 1st Floor 684 2.34 1.14 3.14 109.50 597 82 5
WARREN Basement 306 3.33 1.69 2.85 90.10 253 47 6
WARREN 1st Floor 89 2.39 0.88 3.56 44.80 79 7 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 2,650 2.85 1.74 2.66 95.40 2,193 430 27
WESTCHESTER 1st Floor 772 1.44 0.81 2.78 77.70 731 39 2
WYOMING Basement 557 9.53 4.30 3.63 226.20 267 227 63
WYOMING 1st Floor 240 3.32 1.40 3.75 41.60 190 44 6
YATES Basement 252 5.55 3.22 2.87 69.00 147 93 12
YATES 1st Floor 176 2.71 1.49 3.00 29.80 146 29 1