Air pollutants trapped in the central San Joaquin Valley form a curtain of bad air that can easily been seen from this higher vantage in Sequoia National Park.
Air pollutants trapped in the central San Joaquin Valley form a curtain of bad air that can easily been seen from this higher vantage in Sequoia National Park. MARK GROSSI Special to The Bee
Air pollutants trapped in the central San Joaquin Valley form a curtain of bad air that can easily been seen from this higher vantage in Sequoia National Park. MARK GROSSI Special to The Bee

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April 15, 2017 3:00 PM

China’s bad air adds to the San Joaquin Valley’s problems, but the toxic nightmare is already here

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