Table 1.

Test matrix for collected real-world maritime samples

Maritime surface/material sampled	Sample ID	Sampling method	Replicate samples per spore load	Target spore load colony-forming units (CFU)
RBS marine grade aluminum	SBMGAL	SS	6, 6, 6	0, 300, 3,000
Nonskid tread	NSKID	SS	7, 7, 7	0, 300, 3,000
Touch screen	TCHSCRN	SS	6, 6, 6	0, 300, 3,000
Nonskid tread	NSKID	VFC	8, 8, 8	0, 300, 3,000
Concrete pier	CONPIER	VFC	8, 8, 8	0, 300, 3,000
RBS washdown water	SBWASH	Grab	3, 3, 3, 3	0, 300, 3,000, 30,000
Gravel parking lot	GRAVEL	Grab	3, 3, 3	0, 300, 3,000
Loam soil	SOIL	Grab	3, 3, 3, 3	0, 3,000, 30,000, 300,000
Grass vegetation	VEGE	Grab	3, 3, 3	0, 300, 3,000, 30,000