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America's Dirtiest Cities

America's Dirtiest Cities: San Francisco

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No. 11 San Francisco

The foodie capital of the nation ranks near the top of the AFC for its fine dining, ethnic cuisine, and cafés. But all that takeout can pile up. A recent study found that one of the biggest culprits for pollution in the San Francisco Bay is food containers—though ironically, they may be floating in from neighboring cities. Voters also commended the locals for being brainy and diverse.

See all the America's Favorite Cities survey results!

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