If you are thinking about retiring or living in Costa Rica then the last thing you want to do is breathe polluted air especially if suffer from asthma or other types of respiratory problems.
As a native California I was lucky to breather fairly clean air when I was growing up there. Unfortunately, the American Lung Association, in its report State Of The Air 2010, found seven California metropolitan areas with air quality bad enough that they make it onto the list of the Top 10 Dirtiest Cities in America. The 20 million people in these cities are at higher risk of asthma and chronic bronchitis. According to the Lung Association 175 million Americans live in counties where outdoor air quality earned a grade of F. In California you have good weather but not Costa Rica’s air.
The cities with the worst air quality in America are: Bakersfield, Los Angeles-Long Beach-Riverside, Fresno-Madera, Visalia-Porterville and Hanford-Corcoran. The only non-California cities in the top 10: Pittsburgh, Pa; Birmingham, Ala.; and metropolitan Phoenix, Ariz.
Costa Rica does have air pollution in some areas. Downtown San José, Heredia, Escazú and Alajuela all suffer form pollution due to heavy automobile traffic. Fortunately, the Central Valley is windy and a lot of the bad air gets carried away and during rainy season the air gets cleaned by the frequent afternoon rainstorms.
In the smaller town around the country there is little pollution. Rigorous vehicle inspections have done a lot to remove a lot of vehicles which don’t meet emission standards. Fortunately, we don’t have as many vehicles as large U.S. Cities which reduces pollution. However, if you saw a rush hour traffic jam in San Jose you might think otherwise. So, if you have any respiratory ailments it is better that you live outside of the metropolitan area.
Atenas, San Ramón and Grecia are areas you might want to consider for respiratory health. All have good weather with less vehicular traffic. In case you don’t know, Grecia is considered Costa Rica’s cleanest city and has good air quality. Most of the beach areas are sparsely populated when compared to the country’s cities so they have less pollution, however heat may be a factor you won’t want to put up with when living at the beach.
Just so you will know, I live about ten blocks from the center of the city of Heredia and don’t find the air quality bad. Luckily there is enough wind where I reside to keep the air clean. If you want to live near Heredia and have clean air you can always live in the mountains above the city. The weather can be cool but the air is clean, pure and refreshing.
Pura vida!
Top 5 Dirtiest Cities in America
No. 1: Bakersfield, Calif.
Population: 800,000
Short-term particle pollution rank: 1
Year-round particle pollution rank: 2
Ozone pollution rank: 2
Hot, dusty and surrounded by California’s San Joaquin Valley oil fields, Bakersfield has all the ingredients for the worst air in the nation
No. 2: Los Angeles-Long Beach-Riverside, Calif.
Population: 17.8 million
Short-term particle pollution rank: 4
Year-round particle pollution rank: 3
Ozone pollution rank: 1
University of Calgary researchers found in 2008 that salty coastal air mixed with sunshine and pollutants helps create unexpectedly high levels of ground-level ozone.
No. 3: Fresno-Madera, Calif.
Population: 1.1 million
Short-term particle pollution rank: 2
Year-round particle pollution rank: 6
Ozone pollution rank: 4
Cars, agriculture, petroleum and mega-dairies all contribute to the brown haze that hangs over the San Joaquin Valley.
No. 4: Visalia-Porterville, Calif.
Population: 430,000
Short-term particle pollution rank: 8
Year-round particle pollution rank: 3
Ozone pollution rank: 3
Proximity to the giant trees of Sequoia National Park isn’t enough to clean Visalia’s smoggy San Joaquin Valley air.
No. 5: Hanford-Corcoran, Calif.
Population: 150,000
Short-term particle pollution rank: 10
Year-round particle pollution rank: 8
Ozone pollution rank: 6
Hundreds of aircraft based at the giant Naval Air Station in nearby Lemoore doesn’t help Hanford’s air quality.