7,111 London Plane — day 17
4,378 London Plane — day 25
3,995 London Plane — day 23
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 | 1,011 (Very high) | 0 (Low) | 7 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 24 (Medium) | 0 (Low) | 33 (Medium) | 2 (Low) | 24 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 14 (Low) | 0 | 1 |
| 2 | 646 (Very high) | 0 (Low) | 17 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 46 (Medium) | 0 (Low) | 23 (Medium) | 1 (Low) | 41 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 4 (Low) | 0 | 2 |
| 3 | 394 (Very high) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 33 (Medium) | 0 (Low) | 44 (Medium) | 1 (Low) | 36 (Medium) | 0 (Low) | 1 (Low) | 2 (Low) | 2 (Low) | 17 (Medium) | 0 | 1 |
| 4 | 211 (Very high) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 18 (Medium) | 0 (Low) | 34 (Medium) | 0 (Low) | 29 (Medium) | 0 (Low) | 0 (Low) | 3 (Low) | 1 (Low) | 13 (Low) | 1 | 1 |
| 5 | 30 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 8 (Low) | 0 | 1 |
| 6 | 156 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 12 (Low) | 0 (Low) | 20 (Medium) | 1 (Low) | 16 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 | 2 |
| 7 | 15 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 7 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 1 | 0 |
| 8 | 26 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 28 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 1 | 1 |
| 9 | 86 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 4 (Low) | 1 (Low) | 27 (Medium) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 2 | 2 |
| 10 | 170 (High) | 6 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 15 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 73 (High) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 17 (Medium) | 1 | 5 |
| 11 | 320 (Very high) | 98 (Medium) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 33 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 25 (Medium) | 4 (Low) | 5 (Low) | 0 (Low) | 65 (High) | 0 (Low) | 3 (Low) | 1 (Low) | 4 (Low) | 10 (Low) | 3 | 14 |
| 12 | 76 (Medium) | 261 (High) | 8 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 49 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 24 (Medium) | 4 (Low) | 9 (Low) | 5 (Low) | 48 (Medium) | 0 (Low) | 6 (Low) | 3 (Low) | 3 (Low) | 10 (Low) | 1 | 6 |
| 13 | 381 (Very high) | 610 (Very high) | 5 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 30 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 8 (Low) | 5 (Low) | 6 (Low) | 66 (High) | 0 (Low) | 2 (Low) | 2 (Low) | 2 (Low) | 7 (Low) | 2 | 8 |
| 14 | 31 (Medium) | 480 (Very high) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 6 (Low) | 0 (Low) | 2 (Low) | 13 (Low) | 0 (Low) | 2 (Low) | 2 (Low) | 0 (Low) | 4 (Low) | 3 | 2 |
| 15 | 17 (Low) | 933 (Very high) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 35 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 1 (Low) | 31 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 19 (Medium) | 2 | 2 |
| 16 | 13 (Low) | 2,377 (Very high) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 24 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 3 (Low) | 17 (Medium) | 0 (Low) | 6 (Low) | 30 (Medium) | 0 (Low) | 12 (Low) | 2 (Low) | 3 (Low) | 9 (Low) | 3 | 1 |
| 17 | 62 (Medium) | 7,111 (Very high) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 84 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 24 (Medium) | 2 (Low) | 13 (Low) | 35 (Medium) | 0 (Low) | 2 (Low) | 1 (Low) | 0 (Low) | 18 (Medium) | 2 | 3 |
| 18 | 53 (Medium) | 1,801 (Very high) | 4 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 33 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 30 (Medium) | 1 (Low) | 10 (Low) | 39 (Medium) | 0 (Low) | 4 (Low) | 2 (Low) | 1 (Low) | 2 (Low) | 1 | 1 |
| 19 | 73 (Medium) | 3,407 (Very high) | 3 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 27 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 10 (Low) | 2 (Low) | 5 (Low) | 35 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 4 (Low) | 1 | 3 |
| 20 | 14 (Low) | 1,758 (Very high) | 4 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 20 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 8 (Low) | 2 (Low) | 3 (Low) | 25 (Medium) | 0 (Low) | 4 (Low) | 0 (Low) | 1 (Low) | 6 (Low) | 1 | 1 |
| 21 | 16 (Low) | 1,554 (Very high) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 24 (Medium) | 1 (Low) | 29 (Medium) | 20 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 3 (Low) | 8 (Low) | 1 | 1 |
| 22 | 26 (Low) | 2,631 (Very high) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 38 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 40 (Medium) | 0 (Low) | 23 (Medium) | 18 (Medium) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 2 | 4 |
| 23 | 11 (Low) | 3,995 (Very high) | 1 (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) | 82 (High) | 0 (Low) | 35 (Medium) | 18 (Medium) | 0 (Low) | 6 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 2 | 4 |
| 24 | 14 (Low) | 2,201 (Very high) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 21 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 69 (High) | 2 (Low) | 33 (Medium) | 9 (Low) | 0 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 11 (Low) | 1 | 9 |
| 25 | 75 (Medium) | 4,378 (Very high) | 4 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 59 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 161 (Very high) | 1 (Low) | 55 (High) | 42 (Medium) | 0 (Low) | 1 (Low) | 2 (Low) | 1 (Low) | 19 (Medium) | 2 | 8 |
| 26 | 45 (Medium) | 1,401 (Very high) | 5 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 30 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 53 (High) | 1 (Low) | 25 (Medium) | 45 (Medium) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 | 1 |
| 27 | 15 (Low) | 618 (Very high) | 6 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 8 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 72 (High) | 2 (Low) | 7 (Low) | 17 (Medium) | 0 (Low) | 3 (Low) | 3 (Low) | 1 (Low) | 5 (Low) | 10 | 1 |
| 28 | 9 (Low) | 845 (Very high) | 2 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 71 (High) | 0 (Low) | 18 (Medium) | 11 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 1 (Low) | 2 (Low) | 0 | 1 |
| 29 | 11 (Low) | 1,491 (Very high) | 4 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 13 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 83 (High) | 2 (Low) | 35 (Medium) | 10 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 5 (Low) | 4 (Low) | 2 | 1 |
| 30 | 3 (Low) | 1,024 (Very high) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 58 (High) | 1 (Low) | 12 (Low) | 10 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 1 (Low) | 3 (Low) | 2 | 1 |
| 31 | 7 (Low) | 535 (Very high) | 3 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 57 (High) | 0 (Low) | 12 (Low) | 8 (Low) | 0 (Low) | 4 (Low) | 2 (Low) | 1 (Low) | 3 (Low) | 1 | 2 |