Sink Microbiome Project

Bathroom sinks are home to diverse communities of microbes that are influenced by how we use and clean them. The Sink Microbiome Project is a nationwide community science initiative that investigates how sink design, cleaning practices, and everyday activities shape these microbial communities. By participating, you are helping researchers better understand the microbes that live in our homes and identify ways to support healthier indoor environments.

Overview

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Samples Analyzed
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Distinct Bacteria
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States

Sample Distribution by State

Each bubble represents a state; size reflects the number of samples collected. Hover over a bubble for details.

Most Common Bacteria by State

Bacteria Collected from Sink Drains

Bacteria by Major Group (Phylum)

total genera

    Top 15 Most Abundant Genera

    Drain vs. Countertop Similarity

    How similar are the bacterial communities found in the sink drain compared to the countertop? Each dot represents one household. Hover for details.

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    Learn More About the Science

    What do these results mean? Share your ideas here! →

    Noticed a pattern or have a hypothesis about what shapes the microbial communities in bathroom sinks? We'd love to hear from you.

    Share Your Hypothesis

    Make sure to check back! Comparative results are continually updated, as new samples arrive.

    This work was supported primarily by the Engineering Research Centers Program of the National Science Foundation under NSF Cooperative Agreement No. EEC-2133504.