Ключевые слова: air pollution, alertness, analysis, analyzing, building, chart, check list, check up, checking, checklist, checkup, concepts, construction industry, control, danger, dangerous, diagram, examining, exposure, focus concepts, graph, lung cancer, management, manager, measuring, plan, planning, quality, radiation, radioactive contamination, radioactivity, radon, radon air testing, radon house, radon level testing, radon management plan, radon measurement, radon test, radon testing, research, responsible, risk, safety, screening, searching, surveillance, test results, testing, tumor,