363 London Plane — day 3
274 Maple — day 3
250 Maple — day 15
23 Days measured
| Day | Cypress/Yew | London Plane | Grasses | Plantain | Olive | Birch | Privet | Alder | Maple | Mugwort | Chestnut | Composites | Hazel | Heather | Eucalyptus | Ash | Mulberry | Elm | Pine | Poplar | Goosefoot/Amaranth | Oak | Sorrel | Willow | Nettle | Other | Unidentified |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 3 | 8 (Low) | 363 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 274 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 73 (High) | 3 (Low) | 23 (Medium) | 4 (Low) | 0 (Low) | 28 (Medium) | 5 (Low) | 0 (Low) | 0 (Low) | 2 | 12 |
| 4 | 7 (Low) | 49 (Medium) | 5 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 73 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 75 (High) | 0 (Low) | 16 (Medium) | 0 (Low) | 0 (Low) | 24 (Medium) | 4 (Low) | 0 (Low) | 0 (Low) | 0 | 7 |
| 5 | 3 (Low) | 51 (Medium) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 61 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 20 (Medium) | 0 (Low) | 21 (Medium) | 0 (Low) | 0 (Low) | 30 (Medium) | 3 (Low) | 0 (Low) | 1 (Low) | 0 | 6 |
| 6 | 15 (Low) | 73 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 20 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 35 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 3 | 5 |
| 7 | 1 (Low) | 70 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 | 1 |
| 8 | 2 (Low) | 66 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 33 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 62 (High) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 1 | 2 |
| 9 | 2 (Low) | 122 (High) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 57 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 25 (Medium) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 2 (Low) | 1 (Low) | 2 (Low) | 0 | 7 |
| 10 | 3 (Low) | 17 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 28 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 23 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 2 |
| 11 | 3 (Low) | 75 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 24 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 43 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 3 | 2 |
| 12 | 5 (Low) | 123 (High) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 43 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 111 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 2 | 4 |
| 13 | 2 (Low) | 58 (Medium) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 164 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 90 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 | 7 |
| 14 | 3 (Low) | 52 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 187 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 121 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 37 (Medium) | 6 (Low) | 1 (Low) | 0 (Low) | 6 | 4 |
| 15 | 20 (Low) | 155 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 250 (Very high) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 91 (High) | 0 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 154 (Very high) | 5 (Low) | 0 (Low) | 3 (Low) | 5 | 10 |
| 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 18 | 2 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 2 |
| 19 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 20 | 7 (Low) | 123 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 79 (High) | 0 (Low) | 19 (Medium) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 | 7 |
| 21 | 7 (Low) | 32 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 68 (High) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 | 1 |
| 22 | 1 (Low) | 5 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 43 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 22 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 | 4 |
| 23 | 3 (Low) | 12 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 42 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 21 (Medium) | 1 (Low) | 0 (Low) | 1 (Low) | 3 | 5 |
| 24 | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 14 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 | 1 |
| 25 | 1 (Low) | 8 (Low) | 2 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 23 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 47 (Medium) | 1 (Low) | 0 (Low) | 0 (Low) | 1 | 5 |
| 26 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 27 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 28 | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 20 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 87 (High) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 4 | 6 |
| 29 | 20 (Low) | 2 (Low) | 6 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 43 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 115 (Very high) | 0 (Low) | 13 (Low) | 0 (Low) | 2 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 2 (Low) | 5 | 9 |
| 30 | 17 (Low) | 7 (Low) | 6 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 45 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 91 (High) | 0 (Low) | 20 (Medium) | 0 (Low) | 0 (Low) | 58 (High) | 2 (Low) | 0 (Low) | 0 (Low) | 11 | 9 |