Return to Radon Maps

Nassau County
Indoor Radon Estimates
Percent Homes Above 4 pCi/L
June 1999

Town or City
homes
measured
living area*
basement**
best
estimate
(%)
range #
(%)
best
estimate
(%)
range #
(%)
Glen Cove city 5 1.7 (0.6 - 3.9) 10 (5 - 17)
Hempstead town 258 0.4 (0.3 - 0.6) 2.4 (1.8 - 3.1)
Long Beach city 0 2 (1 - 6) 10 (4 - 19)
North Hempstead town 134 0.8 (0.5 - 1.2) 6 (5 - 7)
Oyster Bay town 157 1.3 (0.9 - 1.6) 7 (6 - 9)
           
Nassau county 554 0.7   4  

* Long-term measurement, 90 days to one year.

**Short-term measurement, typically 2 to 7 days.

# Uncertainty range of one sigma corresponds to a 68% confidence interval.


| Contact Us | Return to Previous Page |

New York State Department of Health - Wadsworth Center

Revised: June 2001