Overview of SARS-CoV-2 RNA in particulate matter 10 and inhalable dust samples collected at mink farms at a later phase of the ongoing SARS-CoV-2 outbreak
| 6-hour stationary sampling inside farm | 8-hour personal sampling inside farm | 6-hour stationary sampling outside | ||||||||
| Inhalable dust | Particulate matter 10 | Inhalable dust | Particulate matter 10 | Inhalable dust | Particulate matter 10 | |||||
| Timepoint | Date | Farm | Positives/ collected, n/N | Virus concentration (RNA copies/m3) | Positives/ collected, n/N | Positives/ collected, n/N | Virus concentration (RNA copies/m3) | Positives/ collected, n/N | Positives/ collected, n/N | Positives/ collected, n/N |
| 1 | 28 April 2020 | NB1 | 1/3 | 2.4×103 | 0/3 | Not collected | NA | Not collected | 0/3 | 0/3 |
| 1 | 30 April 2020 | NB2 | 1/3 | 4.9×103 | 0/3 | Not collected | NA | Not collected | 0/3 | 0/3 |
| 1 | 2 May 2020 | NB1B | 1/3 | 3.8×103 | 0/3 | 1/2 | 4.6×103 | Not collected | 0/3 | 0/3 |
| 2 and 3 | 5–16 May 2020 | NB1A, NB2, NB1B | 0/18 | Non-detects | Not applicable | 0/12 | Non-detects | Not applicable | 0/18 | Not applicable |
All 4-day outdoor air samples collected between 28 April 2020 and 21 May 2020 at NB1A, NB1B and NB2 at their premises: SARS-CoV-2 RNA not detected.
NA, not applicable.