Ключевые слова: air, architecture, asia, background, brown, building, business, car, cars, china, city, cityscape, contamination, covering, downtown, ears, environment, exhaust, exterior, face, gas, girl, health, highway, house, jam, landscape, mask, motorbike, nature, noise, old, outdoor, outside, polluted, pollution, road, saigon, scene, scenic, smog, smoke, street, town, traffic, urban, view, white, woman, worried,