Ключевые слова: air, air pollution, analysis, analyzing, building, businessman, chart, check up, checkup, concept, concepts, construction industry, control, corporate business, damage, danger, dangerous, diagram, digital display, environmental, environmental issues, examination, examining, gas, graph, graphic, home, house, inspection, manager, measuring, poisonous, pollution, quality, radiation, radioactive contamination, radioactivity, radium, radon, radon air testing, radon level testing, radon measurement, radon test, risk, safe, scientific experiment, screen, screening, strategy, test results, testing, trends,