Daughters of Radon - following the Natural Trap thread
The monitoring in Carlsbad started around 1975 or 1976. The discovery of high levels of radon in Carlsbad Caverns caught all the federal cave management folks off guard. The "Daughters of Radon" concern resulted in the first ever Cave Management Symposium in Albuquerque (October 1975). This was arranged by the Cave Research Foundation and the National Park Service to provide federal managers - Park Service, BLM, and Forest Service with guidance. For the first time on a national level federal resource managers became aware that caves really needed managing, and that cavers were a significant source for useful information. The initial concern was for the federal employees who spent the majority of their time underground. This meeting happened to coincide with the first real Balloon Fiesta in Albuquerque. Sandy and I drove up from Alpine, Texas. Our kids were both small and were tremulously impressed with the "flying dragons" roaring fire in the sky over our heads. So were most of the symposium attendees. I remember Pete and Karen Lindsley, Will White, Jack Hess, and all the CRF leadership present. DirtDoc ----- Original Message ----- When I worked there in 1970-71, I don't recall that any radon monitoring had yet been started. During the winter, a draft of cold outside air falls into the lower part of the entrance, moves down along the floor of the Main Corridor and into the lower part of the Big Room, then warms and recirculates back outside along the ceiling. I would expect radon levels to be very low along the tour route while that cold-trap circulation is going on. Did the people doing the monitoring say how significant were the levels they found? --Donald
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