MD Asbestos Abatement case studies
MD Asbestos Abatement · Put your knowledge to work in context.
The Maryland Asbestos Abatement Certification Examination is the written assessment that accompanies accredited asbestos abatement training for workers and supervisors in Maryland. It is intended for people who will remove, encapsulate, enclose, or otherwise disturb asbestos-containing building materials, and for supervisors who direct those activities. The MD Asbestos Abatement case studies are 5 cases and about 4,113 words.
1The 24-Year Insulator With a Positive Chest Film
A 57-year-old abatement worker with 24 years in the trade and a 30-pack-year smoking history reports a dry cough and exertional dyspnea to his supervisor during a six-week removal of 8,000 square feet of friable boiler lagging in an occupied Maryland middle school. His annual OSHA examination shows FVC at 68 percent of predicted, an FEV1/FVC ratio of 0.78, and DLCO at 62 percent of predicted.
818 words, about 4 min2The Hospital Conversion: Notification, RACM, and Who May Touch It
A developer closes on a vacant 1968 hospital: five stories, 180,000 square feet, plus a three-story 40,000-square-foot wing to be demolished structure-from-structure. A pre-renovation survey with bulk samples analyzed by PLM reports 4,800 square feet of 12-inch vinyl floor tile with black mastic; 900 linear feet of friable pipe insulation; 350 square feet of fiberboard ceiling tile; 60 square feet of transite flue panels; and 2,000 square feet of Category I roofing felt on the wing.
821 words, about 4 min30.42 Fibers per cc and a Crew That Wants to Keep the Half-Masks
During a three-week glove-bag removal of 300 linear feet of friable pipe insulation in a hospital mechanical room, personal air samples come back at 0.42 f/cc 8-hour TWA for the insulator and 0.09 f/cc for the helper. The employer currently issues half-mask negative-pressure air-purifying respirators with P100 filters.
824 words, about 4 min4Loss of Pressure and a Broken Shower in a Hospital Containment
A 4,000-square-foot sprayed-on friable ceiling in an empty hospital wing is under full containment: 40,000 cubic feet, critical barriers over the HVAC and doors, a three-stage decontamination unit (dirty room, shower, clean room), and six HEPA negative-air machines rated 2,000 cfm each, ducted out a window. On the second morning the magnehelic gauge at the far corner reads -0.005 in.
815 words, about 4 min5A 0.012 Clearance Sample and a Roll-Off Full of Mislabeled Debris
A 2,000-square-foot ceiling tile removal in a Maryland public school is finished. The project monitor collects five interior clearance air samples; the NVLAP-accredited laboratory reports by PCM: 0.004, 0.006, 0.008, 0.012, and 0.009 f/cc.
835 words, about 4 min