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Air pollution from the San Joaquin Valley has contributed to the deaths of trees in the nearby Sierra forests.
near Redwood Meadow, Kaweah River, Sequoia NP, CA (1990).
A low inversion layer keeps pollution concentrated close to the ground over Los Angeles.
northeast from over LAX, Los Angeles, CA (1980).
Smudge pots burning fuel oil were used to ward off frost in citrus orchards -- until the cost in air pollution got too high.
Ojai Valley, east of Ojai, CA (1974).
Burning coal to produce electricity allows the pollution to be released near the coalfields, and far from the eventual consumer.
San Juan Generating Station, near Farmington, NM (1987).