Four Inches ! Too Close , Too Far , Just Right ?
نویسنده
چکیده
The July 1992 Indoor Radon and Radon Decay Product Measurement Device Protocols, EPA 402-R-92-004 (EPA 1992) provides five measurement device location selection criteria that should be followed when placing a device within a room for measurement of the radon concentration. These criteria include: (1) a place where the device will not be disturbed and there is adequate room for the device, (2) away from drafts caused by heating, ventilating and air conditioning vents, doors, fans, and windows, and areas of high heat, such as near fireplaces or in direct sunlight, and areas of high humidity should be avoided, (3) the device should be at least three feet from windows and other potential openings in the exterior wall and if there are no potential openings the device should be at least one foot from the exterior wall, (4) the device should be at least 20 in. above the floor and at least four inches from other objects, and (5) the device should not be placed in a kitchen, laundry room, closet or bathroom.
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تاریخ انتشار 2008