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 Haringey]
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TABLE A
Average Daily Readings of Smoke and Sulphur Dioxide in the Atmosphere 1967/68
(Microgrammes per cubic metre)
Hornsey Town Hall N.8 (1) | Burghley Road, N.8 (2) | Tottenham Town Hall, N.15 (3) | Civic Centre, N.22 (4) | |
---|---|---|---|---|
Classification | A3 | A1 | A2 | D2 |
(a) Smoke | ||||
July 1967 | 24 | 22 | 25 | 22 |
August | 26 | 24 | 27 | 26 |
September | 33 | 37 | 42 | 39 |
October | 41 | 40 | 40 | 39 |
November | 84 | 80 | 98 | 86 |
December | N | 99 | 103 | 92 |
January 1968 | 69 | 71 | 82 | 71 |
February | 77 | 78 | 88 | 78 |
March | 38 | 38 | 43 | 37 |
April | 47 | N | 55 | 51 |
May | 30 | 28 | 38 | N |
June | N | 23 | 25 | 21 |
(b) Sulphur Dioxide | ||||
July 1967 | 68 | 56 | 71 | 68 |
August | 70 | 49 | 65 | 61 |
September | 88 | 54 | 74 | 61 |
October | 86 | 63 | 87 | 88 |
November | 175 | 152 | 206 | 170 |
December | N | 265 | 234 | 218 |
January 1968 | 205 | 158 | 199 | 175 |
February | 169 | 155 | 203 | 163 |
March | 107 | 88 | 108 | 96 |
April | 150 | N | 164 | 143 |
May | 94 | 75 | 103 | N |
June | N | 59 | 84 | 67 |
NOTE: "N" indicates that number of readings insufficient to give accurate average.
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 multipleoccupation
surrounded by or interspersed with open spaces.
D2—small town centre; limited commercial area mixed with old residential housing and possibly
industry.
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