London's Pulse: Medical Officer of Health reports 1848-1972

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Holborn 1963

[Report of the Medical Officer of Health for Holborn Borough]

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The solid matter expressed in tons falling over the area of Holborn month by month was as follows:—

MonthInsoluble matterSoluble matterTotal solids
JanuaryApparatus out of order
February8.735.3114.04
March14.722.9517.67
April5.223.298.51
May10.473.6114.08
JuneApparatus out of order
July6.333.169.49
August7.074.8911.96
September6.163.9510.11
October5.925.3511.27
November7.813.0810.89
December8.184.7312.91

Daily Measurement of Suspended Matter
The Council has apparatus for making daily estimations of smoke installed at the
London School of Hygiene and Tropical Medicine, Keppel Street, and at the Royal
Institute of Public Health and Hygiene, Queen Square. The apparatus consists mainly
of an air pump which draws a known volume of air from outside and passes it through
a white filter paper. The amount of smoke collected is estimated by comparing the stain
on the paper with a calibrated scale of shades. The following recordings were obtained
during 1963:—

Concentration of smoke—microgrammes per cubic metre.

MonthLondon School of Hygiene and Tropical MedicineRoyal Institute of Public Health and Hygiene
Average ValueHighest ValueLowest ValueAverage ValueHighest ValueLowest Value
January22467356
February15429483
March8917548
April12525656Apparatus not in use
May6711539
June8214041
July45815
August65117335511127
September84184467911424
October139247879521330
November1434965112723941
December17627698200281113