Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
Radon Levels in Valdez-Cordova Census Area, Alaska
EPA puts Valdez-Cordova Census Area in Zone 3, its lowest radon zone, and only 2 radon tests from it are on file with CDC (2021). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
14.3%
Matanuska-Susitna Borough
- Matanuska-Susitna Borough
- 14.3%
- Anchorage Municipality
- 3.1%
2 of 5 neighbours have 30+ tests, 2022
Nearest county
3.1%
Anchorage Municipality, 157 miles
- Anchorage Municipality
- 3.1%
- Alaska
- 11.5%
Share at 4+ pCi/L, 130 tests, 2022
Ground above low
50.6%
28.6 pts below Alaska
- Valdez-Cordova Census Area
- 50.6%
- Alaska
- 79.2%
Share of land USGS rates moderate or high potential
Tests reported
4
Too few for a share
- Valdez-Cordova Census Area
- 4
- Needed
- 30
2007 to 2016, laboratory
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Valdez-Cordova Census Area
Starts at EPA's action level
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.0 pCi/L
At or above 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.
The data
Valdez-Cordova Census Area, At a glance
Valdez-Cordova Census Area at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Moderate across 51% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Valdez-Cordova Census Area, 2021
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2015 | 33.3% |
| 2017 | 0.0% |
| 2018 | 0.0% |
| 2020 | 0.0% |
| 2021 | 0.0% |
2021: 0.0%. Across these years the share ran from 0.0% to 33.3%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 2 tests were reported to CDC for Valdez-Cordova Census Area over 2021, and tests are often run on homes being sold or already suspected of a problem: so few describe neither the borough or census area nor this house.
Measured: CDC tracking data. Figure above: 2021. Measured data period: 2005 to 2021 (every CDC figure on file).
Valdez-Cordova Census Area, Compared
Valdez-Cordova Census Area radon figures, compared
Calculated by Radon411CDC's largest figure for Valdez-Cordova Census Area rests on 4 tests over the 2007 to 2016 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 25.0 points and no rank or comparison is drawn from it. Results reached as high as 2.1 pCi/L, with a middle value of 0.9 pCi/L.
Of the counties bordering it, 2 have a figure in 2022: Matanuska-Susitna Borough reported the largest share at or above 4 pCi/L, 14.3%, and Anchorage Municipality the smallest, 3.1%. Farther out, Fairbanks North Star Borough (234 miles away) at 19.4% have figures too. Pooled across 19 Alaska counties, 11.5% of reported tests reached that level; across every county in the country with a figure, 23.9%.
Statewide for the same period, Fairbanks North Star Borough reported the highest share (19.4%) and Anchorage Municipality the lowest (3.1%). EPA's 1993 map puts Valdez-Cordova Census Area in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 51% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Valdez-Cordova Census Area, Geology
The ground under Valdez-Cordova Census Area
PredictedUSGS's geologic map splits Valdez-Cordova Census Area: 50.6% of its land is moderate radon potential and 47.0% low. The map puts 49.3% of Valdez-Cordova Census Area in the area it calls Coastal Trough and 47.0% in Pacific Border Ranges, with one smaller area beside them. USGS gives the first a radon index of 9, in the moderate band (9 to 11), and the second 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Coastal Trough | marine and continental sedimentary rocks; Tertiary volcanic rocks | Moderate | 9 | 49.3% |
| Pacific Border Ranges | Paleozoic and Mesozoic sedimentary and metamorphic rocks with some mafic volcanic and intrusive rocks. | Low | 7 | 47.0% |
| Alaska-Aleutian Province | sedimentary and mafic volcanic rocks, glacial deposits; felsic intrusives; metamorphic rocks | Moderate | 9 | 1.3% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Valdez-Cordova Census Area beside the ground around it
Alaska as a whole has more moderate-potential ground than Valdez-Cordova Census Area: 79.2% of its land, against 50.6% here. Of the 5 boroughs and census areas that border it, 3 have more moderate-potential ground, Southeast Fairbanks Census Area the most at 100%.
The map rates the ground, not the air in any home.
Local help
Valdez-Cordova Census Area, Local resources
Radon testing and mitigation in Valdez-Cordova Census Area
- Alaska's radon programAlaska Division of Geological & Geophysical SurveysAlaska's radon program answers questions about testing, mitigation and the rules in Alaska.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Alaska directoryNo professionals are listed in Alaska yet. The state program can point you to registered testers and mitigators.
What Alaska's program says
- Phone
- 907-269-6401
- paul.goodfellow@alaska.gov
What it means
Valdez-Cordova Census Area, Questions
Questions about radon in Valdez-Cordova Census Area
Are radon levels high in Valdez-Cordova Census Area?
In 2021, 0.0% of the radon tests reported to CDC for Valdez-Cordova Census Area, Alaska were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.5 pCi/L. Of the counties bordering it, 2 have a figure in 2022: Matanuska-Susitna Borough reported the largest share at or above 4 pCi/L, 14.3%, and Anchorage Municipality the smallest, 3.1%.
Which counties border Valdez-Cordova Census Area?
Valdez-Cordova Census Area borders 5 boroughs and census areas: Southeast Fairbanks Census Area, Anchorage Municipality, Matanuska-Susitna Borough, Yakutat City and Borough and Kenai Peninsula Borough.
Products
Valdez-Cordova Census Area, Products
Testing a home in Valdez-Cordova Census Area
No CDC figure names Valdez-Cordova Census Area; the nearest county with one, Anchorage Municipality (157 miles away), reported 3.1% of its tests at or above 4 pCi/L in 2022, the only reading nearby until a test of this home. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Valdez-Cordova Census Area.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorAranet
Radon One battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Alarm
- Screen, app
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Best radon monitors for Valdez-Cordova Census Area homes, compared
Explore
Valdez-Cordova Census Area, Bordering boroughs and census areas
Boroughs and census areas bordering Valdez-Cordova Census Area
Calculated by Radon41180.0%at or above 4 pCi/L
Median 5.8 pCi/L · 10 tests
14.3%at or above 4 pCi/L
Median 1.1 pCi/L · 42 tests
- Radon levels in Kenai Peninsula BoroughEPA zone 2
8.3%at or above 4 pCi/L
Median 0.8 pCi/L · 24 tests
- Radon levels in Anchorage MunicipalityEPA zone 3
3.1%at or above 4 pCi/L
Median 0.5 pCi/L · 130 tests
- Radon levels in Yakutat City and BoroughEPA zone 3
No CDC figure for 2022; its page reads it against its own neighbours.