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
Carshalton 1962
[Report of the Medical Officer of Health for Carshalton]
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| Month | Gauge B | Gauge C | ||
|---|---|---|---|---|
| Rainfall in ins. | Total Solids (Tons per sq. mile) | Rainfall in ins. | Total Solids (Tons per sq. mile) | |
| January | 3.07 | 9.99 | 2.84 | 10.24 |
| February | 0.47 | 5.65 | 0.67 | 4.93 |
| March | 1.30 | 13.53 | 1.38 | 14.73 |
| April | 1.58 | 10.41 | 1.89 | 12.45 |
| May | 1.26 | 9.86 | 1.54 | 10.93 |
| June | 0.12 | 5.27 | 0.32 | 9.09 |
| July | 2.05 | 16.42 | 2.44 | 11.61 |
| August | *_ | — | 1.65 | 9.06 |
| September | 2.68 | 10.51 | 2.85 | 9.50 |
| October | 1.58 | 10.13 | 1.89 | 7.55 |
| November | 1.42 | 17.33 | 1.46 | 7.89 |
| December | 1.97 | 14.61 | 1.97 | 10.69 |
* Gauge tampered with.
| Month | Smoke Microgrammes per cubic meter | S.O.2 Microgrammes per cubic meter | ||||
|---|---|---|---|---|---|---|
| Highest Reading | Lowest Reading | Average Reading | Highest Reading | Lowest Reading | Average Reading | |
| January | 534 | 11 | 89 | 1098 | 13 | 196 |
| February | 184 | 2 | 66 | 807 | 24 | 160 |
| March | 349 | 23 | 111 | 525 | 49 | 191 |
| April | 124 | 11 | 49 | 251 | 50 | 108 |
| May | 87 | 1 | 21 | 136 | 13 | 48 |
| June | 30 | 1 | 10 | 128 | 6 | 36 |
| July | 48 | 1 | 13 | 115 | 4 | 30 |
| August | 17 | 1 | 5 | 102 | 14 | 33 |
| Sptember | 72 | 1 | 22 | 93 | 15 | 37 |
| October | 324 | 6 | 105 | 289 | 20 | 110 |
| November | 427 | 0 | 111 | 363 | 8 | 121 |
| December | 897 | 32 | 160 | 981 | 39 | 157 |
| Whole year | 897 | 0 | 63 | 1098 | 4 | 102 |
Note: Smoke readings by reflectometer and calculated from tables supplied by D.S.I.R.
Prevention of Damage by Pests Act, 1949
Six thousand nine hundred and sixteen visits were made by the Rodent
Operatives concerning 497 properties and 254 rat and mouse infestations
found. Of that number 227 were found in private premises, 21 in business
premises and 6 in Council premises.
In earlier years it was found that as a result of bait testing of the
sewers, it was necessary to carry out two maintenance treatments of the
manholes in the district, one in May and one in November. With the
steady reduction in the degree of rat infestation, the November treatment
was discontinued in 1959. In 1961 the situation had so far improved in
that no evidence of infestation of the sewers was found by bait testing
and the May maintenance treatment of the manholes was also discontinued.
Last year there was again no evidence of rats in the sewers as revealed by
bait testing and accordingly no maintence treatments were carried out during
the year.
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