المستخدم abrian5llt

مستخدم منذ:	4 سنوات (منذ يوليو 22، 2020)
الرتبة:	مستخدم مسجل
الاسم الكامل:
المكان:
الموفع:	https://www.intensedebate.com/people/milyanwjp6
نبذة شخصية:	In a home with forced air heating & cooling, radon gas can conveniently be dispersed throughout the entire home. When radon gas is released through a radon reduction system above the roofing, the radon concentration falls off substantially with range from the factor of discharge. Actually, the radon gas focus approaches history levels at 3-4 feet from the discharge point. EPA forbade ground level discharge of radon primarily as a result of the possibility for re-entrainment of the gas into your house and because of the possibility of youngsters being subjected to high radon levels. The focus of radon gas at the discharge point can be 10s of countless picocuries per minute.

إحصاءات abrian5llt

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