Throughout most of 2020, Las Vegas attained the target figure for air cleanliness as laid down by the WHO. All forms of outdoor activity can be enjoyed without fear. With levels as low as these, you should have no reserves when opening doors and windows to let some fresh air inside. The concentrations of the recorded pollutants were, PM2.5 - 1.5 µg/m³ and PM10 - 34.3 µg/m³. This is in line with the classifications recommended by the World Health Organisation (WHO). This ranked it as the 23 rd most populous metro area in the US.ĭuring the early months of 2021, Las Vegas enjoyed a period of “Good” quality air with a US AQI reading of 31. The population of the entire metropolitan area was 2.25 million people. This was revised in 2019 which added another 500,000 to it. In 2010 the estimated population of the city was almost 600,000 people. Another name it is often called is “Sin City” because of its tolerance for adult-themed entertainment. It also calls itself “The Entertainment Capital of the World”, and is famous for its mega casino-hotels and associated activities. Las Vegas is officially known as the City of Las Vegas but often known simply as Vegas, is the 28 th most populous city in the US and the most populous city in the state of Nevada. What is the current state of air quality in Las Vegas?