London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Chigwell 1959
[Report of the Medical Officer of Health for Chigwell]
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CLEAN AIR ACT, 1956.
The measurement of Smoke and Sulphur Dioxide in the atmosphere
of the district was continued during the year by means of a daily
volumetric apparatus at the Council Offices, and a Lead Dioxide
candle sited, on the roof of the London County Council Housing Office,
Chigwell Lane, Loughton.
Details of the average monthly readings are given below:-Council Offices.
| Smoke Milligrammes per 100 cubic metres | Sulphur Dioxide Parts per 100 million | |||||
|---|---|---|---|---|---|---|
| Highest | Average | Lowest | Highest | Average | Lowest | |
| January | 58.5 | 21.6 | 4 | 26.3 | 8.4 | 3.1 |
| February | 70 | 22.5 | 3 | 48.2 | 9.7 | 2.4 |
| March | 41.2 | 14.1 | 3.9 | 9.0 | 4.9 | 1.4 |
| April | 17 | 8.4 | 2.1 | 6.7 | 3.5 | 1.4 |
| May | 7.7 | 2.7 | 0.7 | 5.2 | 1.8 | 0.3 |
| June | 6.6 | 2.5 | 0.1 | 2.8 | 1.6 | 0.5 |
| July | 4.5 | 2.1 | 1.0 | 1.4 | 0.7 | 0.3 |
| August | 4.0 | 2.3 | 1.0 | 1.9 | 1.0 | 0.3 |
| September | 6.8 | 2.8 | 0.3 | 3.7 | 1.2 | 0.4 |
| October | 19 | 4 | 3 | 7.7 | 3.1 | 1.8 |
| November | 74 | 25 | 8 | 12.8 | 7.5 | 2.0 |
| December | 39 | 20 | 9 | 19.4 | 6.9 | 2.7 |
L.C.C. Office
Milligrammes of Sulphur Trioxide/day collected by 100 square centimetres of Batch A P.B.02 (louvred cover)
| January | 2.45 |
| February | 1.94 |
| March | 1.59 |
| April | 0.87 |
| May | 0.45 |
| June | 0.58 |
| July | 0.52 |
| August | 0.41 |
| September | 0.81 |
| October | 1.74 |
| November | 1.87 |
| December | 3.28 |
/Average
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