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Types and number of outdoor and indoor biofilms sampled.
| Outdoor (n = 179) | Indoor (n = 366) |
|---|---|
| Outdoor (beach) showerheads (n = 61) | Showerheads (n = 123) |
| Water fountain (n = 24) | Kitchen sink faucets (n = 84) |
| Outdoor faucets (n = 9) | Bathroom sink faucets (n = 154) |
| Ice machines (n = 12) | Water dispensers (n = 5) |
| Swimming pools (n = 12) | |
| Freshwater streams (n = 28) Sphagnum moss (n = 26) |
|
| Lava rock (n = 7) |
