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. 2013 Sep 6;10(9):4143–4160. doi: 10.3390/ijerph10094143

Table 2.

HPCs per unit surface area in deposits under the shower head.

Home CFU/cm2 School CFU/cm2
H1 48 S1 88
H2 120 S2 185
H3 389 S3 322
H4 422 S4 281
H5 145 S5 455
H6 100 S6 392
H7 144 S7 430
H8 101 S8 395
H9 398 S9 196
H10 370 S10 267

Samples H1, H2, S1, and S2 were taken from cold-water showers only. However, the other samples were taken from shower heads that supply both hot and cold water together.