If you’re traveling or planning a trip to a new city and want to know the quality of air in that city, this app is for you.

The app, Air Pollution Check, provides information on the quality of air in over 180 cities in the world, including New York, London, Paris, Tokyo, Chicago, San Francisco, Washington, Sydney, New Orleans, Los Angeles, San Diego, Las Vegas, Miami, Los Angeles, Dallas, Houston, Philadelphia, San Antonio, Indianapolis, Jacksonville, Pittsburgh, Columbus, Denver, Detroit, Atlanta, Nashville, New Orleans, Milwaukee, Nashville, Kansas City, Las Vegas, Seattle, Phoenix, Salt Lake City, San Jose, Miami, St. Louis, Dallas, Orange County, Sacramento, San Diego, Santa Ana, Long Beach, Riverside, West Palm Beach, Bakersfield, Burbank, Glendale, La Mesa, El Paso, Glide, Garden Grove, Pasadena, Billings, Burlington, Fremont, Fresno, Albany, Baton Rouge, Winston-Salem, Raleigh, Memphis, Tucson, Salt Lake City, Oklahoma City, Austin, Sacramento, Atlanta, Tampa, Phoenix, Indianapolis, Syracuse, Charlotte, St. Louis, Buffalo, St. Petersburg, Salt Lake City, Milwaukee, Portland, Boise, Oklahoma City, Minneapolis, Mesa, Las Vegas, Memphis, Savannah, Phoenix, San Antonio, Fresno, Richmond, New Orleans, Tucson, Miami, St. Petersburg, Seattle, St. Louis, Charlotte, Chicago, Albany, Cincinnati, Philadelphia, Nashville, Boston, Seattle, New Orleans, Denver, Washington, Salt Lake City, Burlington, Fort Wayne, Lincoln, Indianapolis, Portland, Raleigh, Dallas, Rochester, Columbus, Tucson, El Paso, Memphis, Kansas City, Cincinnati, Atlanta, Sacramento, Milwaukee, Austin, San Francisco, Philadelphia, Long Beach, Boise, Sacramento, New York City, New Orleans, Orange County, San Francisco, Winston-Salem, Burlington, Glendale, La Mesa, Billings, Lincoln, San Jose, Boston, Pittsburgh, Denver, Detroit, Salt Lake City, Raleigh, Memphis, Mesa, Las Vegas, Miami, St. Louis, Dallas, Houston, Philadelphia, San Antonio, Indianapolis, Jacksonville, Pittsburgh, St.