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Table 2 Quantitative estimates of microbial biomass on kitchen coupons and bathrooms tiles

From: Microbes and associated soluble and volatile chemicals on periodically wet household surfaces

  Sample Bacteria Fungi
Sampling 1
Kitchen coupons KC.1 2,300,000 ± 900,000 251,000 ± 94,000
KC.2 3,800,000 ± 200,000 122,000 ± 5,000
KC.3 229,000 ± 65,000 17,000 ± 5,000
KC.4 1,200,000 ± 140,000 226,000 ± 23,000
Average 1,900,000 154,000
Bathroom tiles BT.1 36,000 ± 2,000 8,500 ± 4,000
BT.2 26,700 ± 200 10,200 ± 3,000
BT.3 200 ± 6 800 ± 500
Average 21,000 6500
Sampling 2
Kitchen coupons KC.5 574,000 ± 46,000 51,300 ± 8,000
KC.6 887,000 ± 25,000 52,200 ± 6,000
KC.7 2,870,000 ± 1,500,000 60,900 ± 9,000
KC.8 404,000 ± 5,000 17,900 ± 6,000
KC.9 4,620,000 ± 40,000 25,700 ± 2,000
KC.10 378,000 ± 12,000 19,900 ± 8,000
Average 1,622,000 38,000
Bathroom tiles BT.4 780 ± 30 100 ± 80
BT.5 4,900 ± 200 a
BT.6 7,800 ± 600 500 ± 100
BT.7 3,700 ± 100 2200 ± 22,000
Average 4,300 700
  1. Reported as gene copies/cm2 surface, rounded to three significant figures
  2. aBelow detection limit