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

Heston and Isleworth 1930

[Report of the Medical Officer of Health for Heston and Isleworth]

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Table: Firestone Factory.Water from No. 2 Reservoir (containing Canal Water) taken 4th March.

Firestone Factory.

Water from No. 2 Reservoir (containing Canal Water) taken 4th March.

Free Ammonia0.84 part per 100,000
Albuminoid Ammonia0,05 „ „
Nitrites0.09 ,, „
Nitrates0.71 „ „
Chlorine15.8 „ „
Oxygen absorption, 4 hr0.65 „ „

Table: Firestone Factory.No.1Drinking Fountain, taken 7th March.No. 2 Drinking Fountain in No.17 Dept., taken 11th March.

Firestone Factory.

No.1Drinking Fountain, taken 7th March.

No. 2 Drinking Fountain in No.17 Dept., taken 11th March.

No. 1No. 2
Free Ammonia0.0002none
Albuminoid Ammonia0.00440.003
NitritesTracenone
Nitrates0.320.2
Chlorine1.91.8
Oxygen Absorption, 4 hr0.0770.048
Poisonous Metalsnonenone

Table: Firestone Factory.Water from Canal Intake, taken18th March.

Firestone Factory.

Water from Canal Intake, taken18th March.

Free Ammonia0.34 part per 100,000
Albuminoid Ammonia0.09 „ „
Nitrites0.05 „ „
Chlorine6.5 „ „
Nitrates0.55 „ „
Oxygen absorption, 4 hr0.5 „ „
Organisms growing at 20°6600 per cc.
Organisms growing at 37°1930 per cc.
B. Coli present in 0.01 cc., absent from 0.001 cc. Salmonella group and Alkaligenes group absent,