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 Stoke Newington, The Metropolitan Borough]
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21.
DAILY SUPLHUR DIOXIDE - TABLE 4 (SO2 in parts per million)
| Month | Average Reading | Highest Reading |
|---|---|---|
| January | 9 | 30 |
| February | Apparatus Defective-Insufficient readings | |
| March | 8 | 25 |
| April | 4 | 11 |
| May | 6 | 10 |
| June | 4 | 9 |
| July | 4 | 10 |
| August | 3 | 7 |
| September | 4 | 11 |
| October | 6 | 23 |
| November | 9 | 20 |
| December | 10 | 29 |