Ключевые слова: abstract, alarm, alert, atomic, attention, backdrop, background, biohazard, biology, blocks, brick, brickwork, building, built, caution, chemical, chemistry, closeup, construction, contamination, covered, danger, design, disaster, element, emergency, emission, energy, environment, grunge, grungy, hazard, hazardous, icon, industrial, industry, label, masonry, material, minimal, minimalism, nobody, nuclear, object, old, pattern, pieces, plaster, plastered, plasterwork, poison, pollution, power, protection, radiation, radioactive, radioactivity, reactor, repair, risk, rock, rough, rustic, safety, science, security, sign, simple, simplicity, solid, stone, stonewall, stonework, structure, surface, symbol, texture, textured, toxic, uranium, view, wall, wallpaper, warning, waste, white, yellow, zone,