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Table 4 Mould spore concentration (total counts) per g house dust of the 63-μm fraction vs. the total dust fraction

From: Evaluation of errors and limits of the 63-μm house-dust-fraction method, a surrogate to predict hidden moisture damage

No.

63-μm dust (cfu/g)

Total dust (cfu/g)

Factor

Remark

1

156,500

156,000

1.0

Living-room

2

616,000

554,000

1.1

Bedroom

3

2,250,000

1,450,000

1.5

Home

4

97,000

60,000

1.6

Living-room

5

82,000

39,000

2.1

Office

6

272,000

116,000

2.3

Living-room

7

93,000

33,000

2.8

Office

8

120,000

31,000

3.9

Office

9

683,000

115,000

5.9

Living-room

10

71,000

10,000

7.1

Office

11

360,000

44,500

8.1

Office

12

833,000

78,000

10.7

Living-room

13

1,366,000

93,000

14.7

Attic