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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LEAD PEROXIDE APPARATUS - TABLE 2
Month | Mg.of SO3 day collected by 100 sq.cm. of Batch A Pbo2. (louvered cover) |
---|---|
January | 3.0 |
February | 2.8 |
March | 3.2 |
April | 2.4 |
May | 1.0 |
June | 0.8 |
July | 0.9 |
August | 0.8 |
September | 1.1 |
October | 2.2 |
November | 2.9 |
December | 3.5 |
ERRATA - Page 2k.
The following should be inserted in
place of Table 3.
DAILY SMOKE FILTER - TABLE 3. (Smoke in milligrammes/100 cubic metres)
Month | Average Reading | Highest Reading | Lowest Reading |
---|---|---|---|
January | 60.7 | 156.0 | 14.0 |
February | 58.9 | 203.0 | 27.5 |
March | 35.4 | 56.8 | 8.3 |
April | 23.8 | 51.7 | 12.7 |
May | 11.5 | 25.5 | 5.2 |
June | 8.2 | 16.0 | 3.8 |
July | 8.8 | 16.1 | 3.8 |
August | 14.6 | 25.1 | 7.8 |
September | 14.5 | 24.4 | 4.0 |
October | 32.8 | 87.7 | 12.2 |
November | 38.5 | 93.5 | 12.5 |
December | 45.9 | 165.0 | 15.7 |