ใครอยุ่Californiaบ้าง?

Top 10 Most Ozone-Polluted Cities

1. Los Angeles-Long Beach, Calif.

2. Visalia-Porterville-Hanford, Calif.

3. Bakersfield, Calif.

Top 10 U.S. Cities Most Polluted by Year-Round Particle Pollution (Annual PM 2.5)

1. Fresno-Madera, Calif.

2. Bakersfield, Calif.

3. Visalia-Porterville-Hanford, Calif.

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