The NBC Bay Area Investigative Unit surveyed 153 blocks of downtown San Francisco in search of trash, needles, and feces. The investigation revealed trash littered across every block. The survey also found blocks dotted with needles and blocks sullied with piles of feces.

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Overall Sanitation Score by Block in Downtown San Francisco
*We gave each block a score based on how many needles, instances of feces were found on the block, as well as if trash were present. Each needle is one point, each instance of feces is one point and presence of trash is three points.
Data: NBC Bay Area Investigative Unit
Graphic: Sam Hart/NBC
Icons: smashicons, Freepik via; Sam Hart/NBC