Table 2.

The top 15 most enriched bacterial genera and their likely sources are shown below.

Bacterial genus	Possible source
Brevundimonas	Soil, aquatic habitat, deep subsea sediment
Bacillus	Soil, air dust, debris
Lysinibacillus	Soil
Enterobacter	Soil, water, sewage
Pseudomonas	Soil, water, plants
Tissierella	Soil, humans
Cytobacillus	Soil, marine segments, living organisms
Sporosarcina	Soil, animal sources
Paenibacillus	Soil, water, sewage, sediments
Clostridioides	Soil, water, animals
Flavobacterium	Soil, animals, river sediments
Flaviflexus	humans
Schnuerera	Water, soil, sediments
Urmitella	Soil, humans
Acinetobacter	Soil, wetland, riverbed