Main Body
Radon Maps of New York State by County and Town
New York City
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 # (%) |
||
| New York (Manhattan) | 61 | 0.9 | (0.5 - 1.7) | 4 | (3 - 7) |
| Bronx | 81 | 1.8 | (1.1 - 3.1) | 9 | (6 - 13) |
| Kings (Brooklyn) | 339 | 1.3 | (0.9 - 1.7) | 7 | (6 - 9) |
| Queens | 413 | 0.3 | (0.2 - 0.5) | 3 | (2 - 4) |
| Richmond (Staten Island) | 198 | 1.2 | (0.8 - 1.7) | 5 | (4 - 7) |
* 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.