As traffic and other sources add more pollutants to the air, the smog gets worse. Ironically, smog is often more severe farther away from the sources of pollution, because the chemical reactions that cause smog take place in the atmosphere while pollutants are drifting on the wind. Smog: Frequently Asked Questions.
There are two major airports if you are flying into the Big Island, Kona International Airport [1] and Hilo International Airport [2]. There are a few non-stop flights from the mainland, mostly from California and Seattle, but it is more common to arrive via Honolulu or Kahului.
US Top 40 Airports. Recently Updated | World Top Airports | US Top Airports | UK Top Airports. According to the 2011-2015 National Plan of Integrated Airport Systems (NPIAS), there are over 19,700 airports in the United States. 5,170 of these airports are open to the general public and 503 of them serve commercial flights.