Ключевые слова: adult, air, apocalyptic, background, belgrade, breathe, breathing, chemical, city, climate, concept, danger, dirty, disaster, ecology, emission, environment, environmental, equipment, face, female, gas, gas mask, grunge, hazardous, horizon, human, industrial, industry, mask, military, people, person, polluted, pollution, polution, portrait, protection, protective, safety, sky, smog, smoke, toxic, urban, white, woman,