Ключевые слова: 101, air, architecture, asia, asian, background, building, city, climate, downtown, emission, environment, environmental, fog, foggy, hazard, hazardous, haze, hazy, highrise, index, landmark, landscape, life, london, metropolis, mist, misty, modern, polluted, pollution, population, river, side, sky, skyline, skyscrapers, smog, street, taipei, taiwan, tower, toxic, travel, unhealthy, urban, view, winter,