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.
Radon mitigation options come in many different forms. In general, professionally installed suction-based ventilation systems are more effective at reducing indoor radon concentrations to safe levels. However, they can be more costly than other systems â upwards of $3,000 in some cases.