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
Haringey 1966
[Report of the Medical Officer of Health for Haringey]
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Classification of Sites
The classification of sites indicates the neighbourhood in which the instruments are located as
follows:-
A1 - residential area with high density housing or with medium density housing in multiple
occupation, in either case surrounded by other built-up areas.
A2 - predominantly A1, but interspersed with some industrial undertakings.
A3 - residential area with high density housing or medium density housing in multiple occupation
surrounded by or interspersed with open spaces.
B1 - residential area with medium density housing, typically an inner suburb or housing estate,
surrounded by other built-up areas.
B3 - residential area with medium density housing surrounded by or interspersed with open spaces,
or in residential area with low density housing.
D2 - Small town centre; limited commercial area mixed with old residential housing and possibly
industry.
X - Unclassified or mixed area.
| Month | Hornsey Town Hall Site | Hampden Road, N.8 Site | ||||||
|---|---|---|---|---|---|---|---|---|
| Rainfall (inches) | Deposits - Tons per square mile | Rainfall (inches) | Deposits - Tons per square mile | |||||
| Dissolved | Undissolved | Total | Dissolved | Undissolved | Total | |||
| January | 1.50 | 5.89 | 6.62 | 12.51 | 1.57 | 6.36 | 7.95 | 14.31 |
| February | 2.99 | 8.18 | 6.24 | 14.42 | 3.03 | 8.37 | 4.04 | 12.41 |
| March | 0.23 | 3.23 | 4.66 | 7.89 | 0.36 | 2.92 | 10.18 | 13.10 |
| April | 3.09 | 5.77 | 12.22 | 17.99 | 3.66 | 6.11 | 14.53 | 20.64 |
| May | 1.87 | 6.30 | 21.62 | 27.92 | 1. 95 | 7.37 | 30.10 | 37.47 |
| June | 3.25 | 8.33 | 29.25 | 37.58 | 3.16 | 5.70 | 17.52 | 23.22 |
| July | 1.66 | 3.39 | 5.67 | 9.06 | 1.75 | 3.51 | 5.90 | 9.41 |
| August | 4.29 | 6.80 | 7.48 | 14.28 | 4.20 | 8.60 | 6.44 | 15.04 |
| September | 2.25 | 6.67 | 8.36 | 15.03 | 2.19 | 6.44 | 6.61 | 13.05 |
| October | 2.21 | 4.96 | 3.81 | 8.77 | 2.48 | 5.29 | 4.91 | 10.20 |
| November | 1.54 | 3.88 | 4.94 | 8.82 | 1.48 | 3.81 | 3.82 | 7.63 |
| December | 2.99 | 4.71 | 4.97 | 9.68 | 2.80 | 5.44 | 4.09 | 9.53 |
| Total | 27.87 | 68.11 | 115.84 | 183.95 | 28.63 | 69.92 | 116.09 | 186.01 |
Rodent Control
Primary control of rat infestation is undertaken by the regular treatment of sewers where the rat
population is the most common reservoir giving rise to sporadic surface outbreaks when drainage defects
allow rats to emerge.
The routine is to treat the whole of the soil sewerage system in the Borough three times annually,
twice with sodium fluoracetate which is a high toxic acute poison, and once with warfarin, which treatment
may extend over a period of up to four weeks. The use of the two poisons has distinct advantages in
that it may secure the elimination of rodents which have a shyness or resistance to one of the poisons
and the warfarin treatment allowsa clearer assessment to be made ofthe number of rats which have been
killed by the treatment, and for the areas to be plotted where rodent infestation is greatest.
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