3,088 London Plane — day 19
2,622 London Plane — day 14
1,418 London Plane — day 17
28 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 | 54 (Medium) | 16 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 22 (Medium) | 8 (Low) | 200 (Very high) | 0 (Low) | 35 (Medium) | 0 (Low) | 4 (Low) | 11 (Low) | 6 | 9 |
| 2 | 4 (Low) | 29 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 4 (Low) | 12 (Low) | 25 (Medium) | 0 (Low) | 12 (Low) | 2 (Low) | 1 (Low) | 10 (Low) | 2 | 8 |
| 3 | 2 (Low) | 61 (Medium) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 9 (Low) | 11 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 9 (Low) | 1 | 2 |
| 4 | 5 (Low) | 48 (Medium) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 4 (Low) | 65 (High) | 29 (Medium) | 0 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 5 (Low) | 3 | 3 |
| 5 | 4 (Low) | 467 (Very high) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 11 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 | 0 |
| 6 | 1 (Low) | 163 (High) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 30 (Medium) | 1 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 | 1 |
| 7 | 1 (Low) | 118 (High) | 5 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 70 (High) | 0 (Low) | 0 (Low) | 2 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 3 | 0 |
| 8 | 2 (Low) | 469 (Very high) | 23 (Low) | 11 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 294 (Very high) | 4 (Low) | 1 (Low) | 7 (Low) | 8 (Low) | 2 (Low) | 4 (Low) | 4 | 1 |
| 9 | 2 (Low) | 379 (Very high) | 10 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 34 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 263 (Very high) | 3 (Low) | 0 (Low) | 3 (Low) | 4 (Low) | 3 (Low) | 5 (Low) | 18 | 2 |
| 10 | 2 (Low) | 598 (Very high) | 23 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 98 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 4 (Low) | 382 (Very high) | 2 (Low) | 0 (Low) | 9 (Low) | 5 (Low) | 1 (Low) | 4 (Low) | 5 | 2 |
| 11 | 7 (Low) | 1,116 (Very high) | 19 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 47 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 13 (Low) | 3 (Low) | 633 (Very high) | 10 (Low) | 0 (Low) | 23 (Medium) | 5 (Low) | 5 (Low) | 6 (Low) | 6 | 3 |
| 12 | 1 (Low) | 567 (Very high) | 9 (Low) | 2 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 25 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 425 (Very high) | 5 (Low) | 0 (Low) | 22 (Medium) | 4 (Low) | 4 (Low) | 5 (Low) | 8 | 1 |
| 13 | 1 (Low) | 598 (Very high) | 16 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 50 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 1 (Low) | 120 (Very high) | 12 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 2 | 7 |
| 14 | 4 (Low) | 2,622 (Very high) | 43 (Medium) | 13 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 47 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 33 (Medium) | 1 (Low) | 528 (Very high) | 11 (Low) | 2 (Low) | 13 (Low) | 4 (Low) | 3 (Low) | 9 (Low) | 4 | 9 |
| 15 | 0 (Low) | 1,016 (Very high) | 26 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 125 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 104 (Very high) | 0 (Low) | 787 (Very high) | 8 (Low) | 1 (Low) | 39 (Medium) | 3 (Low) | 1 (Low) | 1 (Low) | 5 | 8 |
| 16 | 0 (Low) | 1,246 (Very high) | 22 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 121 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 145 (Very high) | 0 (Low) | 312 (Very high) | 2 (Low) | 0 (Low) | 31 (Medium) | 6 (Low) | 8 (Low) | 1 (Low) | 5 | 4 |
| 17 | 5 (Low) | 1,418 (Very high) | 28 (Low) | 24 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 221 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 262 (Very high) | 0 (Low) | 913 (Very high) | 3 (Low) | 0 (Low) | 109 (Very high) | 10 (Low) | 0 (Low) | 5 (Low) | 14 | 46 |
| 18 | 6 (Low) | 733 (Very high) | 28 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 61 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 26 (Medium) | 0 (Low) | 0 (Low) | 357 (Very high) | 2 (Low) | 108 (Very high) | 2 (Low) | 0 (Low) | 126 (Very high) | 13 (Low) | 4 (Low) | 4 (Low) | 6 | 6 |
| 19 | 9 (Low) | 3,088 (Very high) | 24 (Low) | 8 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 72 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 135 (Very high) | 0 (Low) | 228 (Very high) | 16 (Medium) | 0 (Low) | 54 (High) | 2 (Low) | 1 (Low) | 4 (Low) | 11 | 15 |
| 20 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 21 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| 22 | 2 (Low) | 448 (Very high) | 12 (Low) | 10 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 27 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 84 (High) | 0 (Low) | 25 (Medium) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 2 (Low) | 4 (Low) | 5 | 3 |
| 23 | 2 (Low) | 128 (High) | 11 (Low) | 6 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 57 (High) | 0 (Low) | 11 (Low) | 1 (Low) | 0 (Low) | 22 (Medium) | 2 (Low) | 1 (Low) | 4 (Low) | 2 | 0 |
| 24 | 3 (Low) | 215 (High) | 8 (Low) | 12 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 20 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 107 (Very high) | 0 (Low) | 19 (Medium) | 1 (Low) | 1 (Low) | 27 (Medium) | 1 (Low) | 3 (Low) | 2 (Low) | 3 | 9 |
| 25 | 0 (Low) | 400 (Very high) | 9 (Low) | 12 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 86 (High) | 0 (Low) | 36 (Medium) | 0 (Low) | 0 (Low) | 33 (Medium) | 2 (Low) | 6 (Low) | 1 (Low) | 5 | 2 |
| 26 | 2 (Low) | 279 (High) | 5 (Low) | 4 (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) | 78 (High) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 0 (Low) | 0 (Low) | 2 (Low) | 3 | 3 |
| 27 | 1 (Low) | 390 (Very high) | 5 (Low) | 11 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 33 (Medium) | 0 (Low) | 20 (Medium) | 0 (Low) | 0 (Low) | 39 (Medium) | 1 (Low) | 1 (Low) | 0 (Low) | 3 | 3 |
| 28 | 1 (Low) | 653 (Very high) | 5 (Low) | 3 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 32 (Medium) | 0 (Low) | 0 (Low) | 20 (Medium) | 0 (Low) | 6 (Low) | 0 (Low) | 9 | 7 |
| 29 | 0 (Low) | 123 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 1 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 | 2 |
| 30 | 0 (Low) | 19 (Low) | 4 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 | 0 |