Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Westminster, City of]
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The results obtained from the two sites are as follows:—
| Month | S02 micrograms per cubic metre | |
|---|---|---|
| Monck Street | Churchill Gardens | |
| January | 691 | 533 |
| February | 614 | 465 |
| March | 360 | 262 |
| April | 317 | 268 |
| May | 193 | 165 |
| June | 162 | 189 |
| July | 166 | 204 |
| August | 143 | 163 |
| September | 226 | 234 |
| October | 251 | 220 |
| November | 317 | 314 |
| December | 477 | 524 |