US National Parks Air Quality Worsening

As reported by Janet Wilson of LA Times the air quality in US National Parks is worsening.

New data from the National Parks Service shows that air quality deteriorated significantly between 1995 and 2004 in the following 10 National Parks: Canyonlands, Craters of the Moon, Death Valley, Glacier, Grand Canyon, Mesa Verde, North Cascades, Rocky Mountain, Sequoia-Kings Canyon and Yellowstone.

It seems that especially ozone pollution is on the rise. Breathing ozone can cause asthma attacks and lung inflammation etc. It also damages plants and other vegetation you find in the parks.
For more details click here and read Janet Wilson's article.

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