How Radon Enters Your Residence.
Radon comes from decaying Uranium in the rocks and soil beneath every home. As a gas, Radon will rise from the ground and seep into homes via cracks in foundations, sump wells, or other openings. Additionally, concrete used for foundations has natural pores that tend to draw in radon gas. If you are looking to avoid overexposure, then you need to make sure that there are no huge gaps in your concrete.The easier it is for Radon to enter your home the higher levels will be.
Certain home conditions, indoor pressure, temperature, and efficiency will allow Radon levels to build up to higher more serious levels. One circumstance called stack-effect, actually will pull air containing Radon into your home at an increased rate. While homes being completely closed up in the winter or extreme summer months will not allow Radon to dissipate with a fresh air intake in a home.
Types of Residential Radon Test Kits.
There are a few common types of radon tests and they all monitor your home differently. Radonova offers two different types, alpha track detectors (ATD) and activated charcoal detectors(AC).
The Radtrak² long-term ATD is a 90+ day test and the most accurate depiction of your homes radon level. With the natural spikes and valleys that occur during a radon test longer term tests are the best way to get a result not featuring a false high or low level.
Similar to the Radtrak², the Rapidos is a short-term alpha track detector. With a slight increase in the size of the detector allowing for faster gathering of air, you are able to get an extremely accurate radon level in as little as 10 days.
One of the most common types, the traditional charcoal screening, is the fastest way to determine if your home needs immediate mitigation efforts. The QuickScreen detector is an inexpensive, fast (2-4 days), reliable test that will help you decide whether additional testing is needed for borderline results or if mitigation is necessary on extremely high levels.
Which Kit Do I Need?
Circumstance will usually dictate the type of test needed for your home. Are you testing for the first time? Have you recently mitigated your home? Has your home previously tested below the guideline and you are testing again?
While there is a finite amount of circumstances that will sway the kind of test needed there are few instances that require a specific test.
- Real-Estate Transactions – With short closing windows and buyer’s not wanting to be left with the burden of a high radon level after close, typically charcoal tests are used during the buying/selling of a home
- Initial Radon Test – If you have never performed a radon test on your home before, it may be good to start with a shorter term test and follow that up with a long term test. While the short term test will let you know quickly if you should mitigate immediately (extremely high levels) the long term test will give you an average concentration directly comparable to the yearly guideline of 4.0 pCi/l.
Follow Up After Mitigation – When testing to see if a recently installed mitigation system is working you will want to do a short term test to initially make sure that your system is reducing your level but will want to perform a long term test to make sure it is keeping the level below the guideline of 4.0 pCi/l. After you have installed a mitigation system you should test yearly to make sure your system continues to operate correctly.