Sampling points (cfu/30 min/dish) | January | February | March | April | May | June | July | August | September | October | November | December |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Surface (5 points) | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.1 ± 0.3 | 0.0 ± 0.0 | 0.1 ± 0.3 | 0.0 ± 0.0 | 0.1 ± 0.3 | 0.1 ± 0.3 | 0.1 ± 0.3 | 0.2 ± 0.4 | 0.0 ± 0.0 |
Air (9 points) | 0.0 ± 0.0 | 0.3 ± 0.5 | 1.4 ± 0.5 | 0.3 ± 05 | 0.1 ± 0.2 | 0.0 ± 0.0 | 0.2 ± 0.4 | 1.0 ± 0.6 | 0.4 ± 0.5 | 0.6 ± 0.6 | 0.1 ± 0.3 | 0.0 ± 0.0 |