2,577 London Plane — day 18
2,155 London Plane — day 19
1,185 London Plane — day 17
30 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 | 4 (Low) | 0 (Low) | 0 (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) | 2 (Low) | 0 (Low) | 1 (Low) | 1 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 3 | 1 |
| 2 | 31 (Medium) | 1 (Low) | 1 (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) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 100 (Very high) | 0 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 37 (Medium) | 13 | 6 |
| 3 | 71 (Medium) | 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) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 38 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 2 | 0 |
| 4 | 5 (Low) | 0 (Low) | 1 (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) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 1 (Low) | 5 (Low) | 1 | 0 |
| 5 | 7 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 31 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 23 (Medium) | 5 | 1 |
| 6 | 21 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 37 (Medium) | 2 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 2 | 4 |
| 7 | 4 (Low) | 1 (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) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 2 (Low) | 1 | 0 |
| 8 | 8 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 35 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 21 (Medium) | 0 (Low) | 3 (Low) | 3 (Low) | 0 (Low) | 8 (Low) | 4 | 1 |
| 9 | 1 (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) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 2 | 0 |
| 10 | 1 (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) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 | 1 |
| 11 | 6 (Low) | 11 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 17 (Medium) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 | 4 |
| 12 | 0 (Low) | 12 (Low) | 1 (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) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 1 | 1 |
| 13 | 0 (Low) | 33 (Medium) | 3 (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) | 0 (Low) | 1 (Low) | 0 (Low) | 14 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 3 | 0 |
| 14 | 3 (Low) | 71 (Medium) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 27 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 14 (Low) | 3 | 1 |
| 15 | 14 (Low) | 313 (Very high) | 6 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 3 (Low) | 29 (Medium) | 0 (Low) | 0 (Low) | 3 (Low) | 4 (Low) | 33 (Medium) | 4 | 14 |
| 16 | 14 (Low) | 452 (Very high) | 4 (Low) | 0 (Low) | 0 (Low) | 1 (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) | 2 (Low) | 33 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 17 (Medium) | 10 | 4 |
| 17 | 15 (Low) | 1,185 (Very high) | 2 (Low) | 1 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 7 (Low) | 3 (Low) | 0 (Low) | 3 (Low) | 93 (High) | 0 (Low) | 6 (Low) | 1 (Low) | 2 (Low) | 67 (High) | 5 | 25 |
| 18 | 30 (Medium) | 2,577 (Very high) | 3 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 17 (Medium) | 147 (Very high) | 0 (Low) | 0 (Low) | 3 (Low) | 0 (Low) | 73 (High) | 6 | 17 |
| 19 | 6 (Low) | 2,155 (Very high) | 10 (Low) | 4 (Low) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 29 (Medium) | 0 (Low) | 36 (Medium) | 3 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 22 (Medium) | 0 | 14 |
| 20 | 10 (Low) | 1,030 (Very high) | 1 (Low) | 6 (Low) | 0 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 95 (High) | 1 (Low) | 24 (Medium) | 30 (Medium) | 1 (Low) | 2 (Low) | 0 (Low) | 12 (Low) | 15 (Medium) | 1 | 17 |
| 21 | 5 (Low) | 818 (Very high) | 6 (Low) | 2 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 10 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 62 (High) | 2 (Low) | 8 (Low) | 14 (Low) | 0 (Low) | 7 (Low) | 2 (Low) | 2 (Low) | 11 (Low) | 1 | 2 |
| 22 | 11 (Low) | 959 (Very high) | 12 (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) | 3 (Low) | 152 (Very high) | 0 (Low) | 5 (Low) | 20 (Medium) | 2 (Low) | 4 (Low) | 2 (Low) | 0 (Low) | 39 (Medium) | 4 | 5 |
| 23 | 2 (Low) | 679 (Very high) | 3 (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) | 1 (Low) | 112 (Very high) | 0 (Low) | 4 (Low) | 4 (Low) | 3 (Low) | 1 (Low) | 1 (Low) | 1 (Low) | 10 (Low) | 6 | 10 |
| 24 | 11 (Low) | 519 (Very high) | 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) | 3 (Low) | 123 (Very high) | 0 (Low) | 9 (Low) | 11 (Low) | 4 (Low) | 4 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 3 | 22 |
| 25 | 10 (Low) | 1,075 (Very high) | 1 (Low) | 1 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 159 (Very high) | 0 (Low) | 23 (Medium) | 11 (Low) | 3 (Low) | 3 (Low) | 4 (Low) | 0 (Low) | 13 (Low) | 3 | 23 |
| 26 | 15 (Low) | 322 (Very high) | 4 (Low) | 12 (Low) | 3 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 45 (Medium) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 123 (Very high) | 0 (Low) | 38 (Medium) | 8 (Low) | 4 (Low) | 4 (Low) | 3 (Low) | 1 (Low) | 9 (Low) | 17 | 11 |
| 27 | 11 (Low) | 256 (High) | 5 (Low) | 56 (High) | 3 (Low) | 6 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 57 (High) | 0 (Low) | 11 (Low) | 2 (Low) | 0 (Low) | 834 (Very high) | 15 (Medium) | 0 (Low) | 15 (Medium) | 8 | 28 |
| 28 | 5 (Low) | 194 (High) | 8 (Low) | 54 (High) | 5 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 84 (High) | 0 (Low) | 0 (Low) | 0 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 58 (High) | 0 (Low) | 2 (Low) | 20 (Medium) | 1 (Low) | 200 (Very high) | 1 (Low) | 0 (Low) | 12 (Low) | 28 | 31 |
| 29 | 3 (Low) | 325 (Very high) | 0 (Low) | 5 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 16 (Medium) | 0 (Low) | 0 (Low) | 1 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 1 (Low) | 13 (Low) | 0 (Low) | 3 (Low) | 10 (Low) | 6 (Low) | 45 (Medium) | 4 (Low) | 0 (Low) | 1 (Low) | 10 | 0 |
| 30 | 1 (Low) | 338 (Very high) | 1 (Low) | 2 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 9 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 0 (Low) | 11 (Low) | 0 (Low) | 3 (Low) | 2 (Low) | 0 (Low) | 31 (Medium) | 0 (Low) | 0 (Low) | 2 (Low) | 4 | 4 |