983 London Plane — day 21
889 London Plane — day 23
817 London Plane — day 24
31 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 | 128 (High) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 67 (High) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | — | 0 |
| 2 | 41 (Medium) | 0 (Low) | 2 (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) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 82 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 | 0 |
| 3 | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (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) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 0 |
| 4 | 69 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 44 (Medium) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 | 0 |
| 5 | 17 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 13 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 0 |
| 6 | 207 (Very high) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 31 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 | 0 |
| 7 | 377 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 74 (High) | 0 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 3 (Low) | 0 | 0 |
| 8 | 248 (Very high) | 0 (Low) | 9 (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) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 | 0 |
| 9 | 174 (High) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 30 (Medium) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 | 1 |
| 10 | 21 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 | 0 |
| 11 | 101 (High) | 2 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 49 (Medium) | 0 (Low) | 26 (Medium) | 0 (Low) | 0 (Low) | 2 (Low) | 2 | 0 |
| 12 | 49 (Medium) | 0 (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) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 20 (Medium) | 0 (Low) | 11 (Low) | 0 (Low) | 1 (Low) | 8 (Low) | 0 | 1 |
| 13 | 49 (Medium) | 0 (Low) | 12 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 45 (Medium) | 0 (Low) | 15 (Medium) | 0 (Low) | 1 (Low) | 5 (Low) | 0 | 0 |
| 14 | 50 (Medium) | 0 (Low) | 12 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 79 (High) | 0 (Low) | 45 (Medium) | 0 (Low) | 1 (Low) | 6 (Low) | 0 | 1 |
| 15 | 73 (Medium) | 0 (Low) | 9 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 68 (High) | 0 (Low) | 29 (Medium) | 0 (Low) | 0 (Low) | 5 (Low) | 0 | 0 |
| 16 | 109 (High) | 0 (Low) | 11 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 192 (Very high) | 0 (Low) | 13 (Low) | 0 (Low) | 1 (Low) | 15 (Medium) | 0 | 0 |
| 17 | 13 (Low) | 42 (Medium) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 59 (High) | 0 (Low) | 181 (Very high) | 1 (Low) | 0 (Low) | 8 (Low) | 0 | 0 |
| 18 | 23 (Low) | 290 (High) | 6 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 25 (Medium) | 0 (Low) | 26 (Medium) | 0 (Low) | 1 (Low) | 8 (Low) | 0 | 1 |
| 19 | 5 (Low) | 459 (Very high) | 14 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 17 (Medium) | 0 (Low) | 3 (Low) | 61 (High) | 0 (Low) | 57 (High) | 0 (Low) | 0 (Low) | 6 (Low) | 0 | 0 |
| 20 | 23 (Low) | 794 (Very high) | 10 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 5 (Low) | 0 (Low) | 2 (Low) | 26 (Medium) | 0 (Low) | 72 (High) | 0 (Low) | 0 (Low) | 6 (Low) | 0 | 0 |
| 21 | 3 (Low) | 983 (Very high) | 5 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 2 (Low) | 7 (Low) | 0 (Low) | 20 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 0 |
| 22 | 35 (Medium) | 688 (Very high) | 28 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 24 (Medium) | 1 (Low) | 6 (Low) | 68 (High) | 0 (Low) | 38 (Medium) | 0 (Low) | 8 (Low) | 9 (Low) | 0 | 4 |
| 23 | 20 (Low) | 889 (Very high) | 24 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 43 (Medium) | 0 (Low) | 8 (Low) | 53 (High) | 0 (Low) | 25 (Medium) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 | 0 |
| 24 | 36 (Medium) | 817 (Very high) | 37 (Medium) | 1 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 67 (High) | 0 (Low) | 11 (Low) | 49 (Medium) | 0 (Low) | 39 (Medium) | 0 (Low) | 0 (Low) | 9 (Low) | 0 | 0 |
| 25 | 22 (Low) | 406 (Very high) | 23 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 38 (Medium) | 0 (Low) | 3 (Low) | 31 (Medium) | 0 (Low) | 28 (Medium) | 0 (Low) | 2 (Low) | 21 (Medium) | 0 | 0 |
| 26 | 9 (Low) | 343 (Very high) | 21 (Low) | 0 (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) | 85 (High) | 0 (Low) | 2 (Low) | 14 (Low) | 0 (Low) | 42 (Medium) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 | 0 |
| 27 | 25 (Low) | 480 (Very high) | 31 (Medium) | 0 (Low) | 6 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 147 (Very high) | 1 (Low) | 8 (Low) | 44 (Medium) | 0 (Low) | 96 (High) | 1 (Low) | 1 (Low) | 40 (Medium) | 0 | 0 |
| 28 | 4 (Low) | 19 (Low) | 12 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 34 (Medium) | 1 (Low) | 0 (Low) | 8 (Low) | 0 | 0 |
| 29 | 15 (Low) | 86 (Medium) | 6 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 5 (Low) | 7 (Low) | 0 (Low) | 10 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 1 | 0 |
| 30 | 7 (Low) | 41 (Medium) | 4 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 1 (Low) | 4 (Low) | 6 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 | 0 |
| 31 | 2 (Low) | 20 (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) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 0 |