Ключевые слова: air analysis, air pollution, air quality, air quality index, aqi, city, city life, cityscape, climate, co2 levels, ecofriendly, emissions testing, environmental health, environmental monitoring, environmental protection, haze, health, lung cancer, measure, monitoring device, monitoring equipment, outdoor, particulates, pm25, pollution, pollution control, pollution measurement, public policy, public safety, respiratory health, road, smog, sustainability, technology, traffic, traffic congestion, transport, urban, vehicle emissions,