High results are most common in Taos County (77%) and least common in Curry County (4%)Share of tests at or above 4 pCi/L by county · Radon test results from laboratories, 2008–2017 · 29 of 33 counties have data
Bernalillo County: 24% of tests at or above 4 pCi/L · 1,052 testsCatron County: 0% of tests at or above 4 pCi/L · 1 testsChaves County: 44% of tests at or above 4 pCi/L · 9 testsCibola County: 54% of tests at or above 4 pCi/L · 13 testsColfax County: 40% of tests at or above 4 pCi/L · 15 testsCurry County: 4% of tests at or above 4 pCi/L · 135 testsDe Baca County: no dataDoña Ana County: 13% of tests at or above 4 pCi/L · 104 testsEddy County: 6% of tests at or above 4 pCi/L · 18 testsGrant County: 47% of tests at or above 4 pCi/L · 15 testsGuadalupe County: no dataHarding County: no dataHidalgo County: no dataLea County: 16% of tests at or above 4 pCi/L · 25 testsLincoln County: 27% of tests at or above 4 pCi/L · 22 testsLos Alamos County: 38% of tests at or above 4 pCi/L · 78 testsLuna County: 40% of tests at or above 4 pCi/L · 5 testsMcKinley County: 27% of tests at or above 4 pCi/L · 22 testsMora County: 25% of tests at or above 4 pCi/L · 4 testsOtero County: 13% of tests at or above 4 pCi/L · 23 testsQuay County: 100% of tests at or above 4 pCi/L · 2 testsRio Arriba County: 50% of tests at or above 4 pCi/L · 14 testsRoosevelt County: 100% of tests at or above 4 pCi/L · 2 testsSandoval County: 21% of tests at or above 4 pCi/L · 140 testsSan Juan County: 34% of tests at or above 4 pCi/L · 56 testsSan Miguel County: 46% of tests at or above 4 pCi/L · 24 testsSanta Fe County: 31% of tests at or above 4 pCi/L · 1,819 testsSierra County: 0% of tests at or above 4 pCi/L · 2 testsSocorro County: 0% of tests at or above 4 pCi/L · 9 testsTaos County: 77% of tests at or above 4 pCi/L · 83 testsTorrance County: 14% of tests at or above 4 pCi/L · 7 testsUnion County: 100% of tests at or above 4 pCi/L · 2 testsValencia County: 20% of tests at or above 4 pCi/L · 20 tests
  • Under 10%
  • 10–20%
  • 20–30%
  • 30–40%
  • 40% or more
  • No data

Counties

CountyTests% ≥ 4 pCi/LMedian (pCi/L)EPA zone (1993)Source
Bernalillo County1,05224%2.1Zone 1Radon test results from laboratories through 2017
Catron County10%3.9Zone 2Radon test results from laboratories through 2017
Chaves County944%3.8Zone 2Radon test results from laboratories through 2017
Cibola County1354%5.5Zone 2Radon test results from laboratories through 2017
Colfax County1540%2.6Zone 1Radon test results from laboratories through 2017
Curry County1354%0.6Zone 2Radon test results from laboratories through 2017
De Baca County———Zone 2—
Doña Ana County10413%1.3Zone 2Radon test results from laboratories through 2017
Eddy County186%0.5Zone 2Radon test results from laboratories through 2017
Grant County1547%2.3Zone 2Radon test results from laboratories through 2017
Guadalupe County———Zone 2—
Harding County———Zone 2—
Hidalgo County———Zone 2—
Lea County2516%2.0Zone 2Radon test results from laboratories through 2017
Lincoln County2227%1.9Zone 2Radon test results from laboratories through 2017
Los Alamos County7838%3.0Zone 2Radon test results from laboratories through 2017
Luna County540%2.5Zone 2Radon test results from laboratories through 2017
McKinley County2227%2.2Zone 2Radon test results from laboratories through 2017
Mora County425%3.0Zone 1Radon test results from laboratories through 2017
Otero County2313%1.2Zone 2Radon test results from laboratories through 2017
Quay County2100%5.3Zone 2Radon test results from laboratories through 2017
Rio Arriba County1450%3.5Zone 1Radon test results from laboratories through 2017
Roosevelt County2100%8.0Zone 2Radon test results from laboratories through 2017
San Juan County5634%2.4Zone 2Radon test results from laboratories through 2017
San Miguel County2446%3.5Zone 1Radon test results from laboratories through 2017
Sandoval County14021%1.5Zone 2Radon test results from laboratories through 2017
Santa Fe County1,81931%2.7Zone 1Radon test results from laboratories through 2017
Sierra County20%2.2Zone 2Radon test results from laboratories through 2017
Socorro County90%0.8Zone 2Radon test results from laboratories through 2017
Taos County8377%8.5Zone 1Radon test results from laboratories through 2017
Torrance County714%2.2Zone 2Radon test results from laboratories through 2017
Union County2100%5.5Zone 2Radon test results from laboratories through 2017
Valencia County2020%2.0Zone 2Radon test results from laboratories through 2017

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