Ключевые слова: 2019ncov, air, asia, asian, breath, car, carbon, city, corona, dirty, disease, dust, environment, epidemic, face, female, filter, flu, fog, girl, health, ill, illness, infected, influenza, mask, n95, ncov, outdoor, people, person, pm25, pollution, protect, protection, public, quality, respiratory, safety, sick, smog, smoke, street, tourist, urban, virus, wearing, woman,