The Guardian. The Guardian is a British daily newspaper, known from 1821 until 1959 as The Manchester Guardian. Along with its sister papers The Observer and The Guardian Weekly, The Guardian is part of the Guardian Media Group, owned by The Scott Trust Limited.
Radon mitigation is any process or system used to reduce radon concentrations in the breathing zones of occupied buildings.The goal of a radon mitigation system is to reduce the indoor radon levels to below the EPA action level of 4 pCi/L.A quality radon reduction (mitigation) system is often able to reduce the annual average radon level to below 2 pCi/L.In general, costs can range from approximately $800-$2500, with the average reduction system costing approximately $1500.he goal of a radon mitigation system is to reduce the indoor radon levels to below the EPA action level of 4 pCi/L. A quality radon reduction (mitigation) system is often able to reduce the annual average radon level to below 2 pCi/L.
You have tested your home for radon and confirmed that you have elevated radon levels â 4 picocuries per liter (pCi/L) or higher. The EPA recommends that you take action to reduce your home's radon levels if your radon test result is 4 pCi/L or higher.High radon levels can be reduced through mitigation. CLICK HERE to order a test kit. 1  Select a licensed or certified radon mitigation contractor to reduce the radon levels.2  Have mitigation contractor determine appropriate radon reduction method.igh radon levels can be reduced through mitigation. CLICK HERE to order a test kit. 1  Select a licensed or certified radon mitigation contractor to reduce the radon levels. 2  Have mitigation contractor determine appropriate radon reduction method.