[Report of the Medical Officer of Health for London, City of ] page 7

City of London 1960

[Report of the Medical Officer of Health for London, City of ]

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TABLEII- Results obtained in1960 of the daily observations of the concentration of SMOKE by the volumetric method.

Month	Rainfall collected in deposit gauge at Golden Lane		Golden Lane	POLICE STATIONS
	Rainfall collected in deposit gauge at Golden Lane		Golden Lane	Bishopsgate	Cloak Lane	Snow Hill
	Equivalent to		Monthly Average	Monthly Average	Monthly Average	Monthly Average
	Millimetres	inches of rain	Milligrams per 100 cubic metres	Milligrams per 100 cubic metres	Milligrams per 100 cubic metres	Milligrams per 100 cubic metres
January	36	1.43	17	26	23	11
February	46	1.80	15	22	20	12
March	36	1.44	13	14	13	6
April	10	0.41	8	11	13	3
May	44	1.74	7	10	13	3
June	40	1.60	3	8	10	2
July	65	2.55	2	10	8	2
August	80	3.14	4	10	8	2
September	122	4.80	6	11	11	3
October	128	5.06	11	16	12	9
November	89	3.51	11	28	12	11
December	51	2.00	17	32	18	13
Averages:
1960	62	2.46	10	16	13	6
1959	41	1.60	10	20	18	9
1958	62	2.44	9	20	16	7
1957	42	1.66	9	25	15	7
1956	44	1.74	14	15	12	13
1955	43	1.71	14	13(a)	10(a)	12(a)
1955-59	46	1.83	11	19	14	10
(a) Measurement for 9 months of the year.

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TABLE III.— Results obtained in 1960 of the measurement of SULPHUR DIOXIDE by the volumetric and lead peroxide methods.

Month	Rainfall collected in deposit gauge at Golden Lane			Police Stations			LEAD PEROXIDE METHOD
	Rainfall collected in deposit gauge at Golden Lane		Golden Lane	Bishops-gate	Cloak Lane	Snow Hill	Golden Lane	Finsbury Circus
	Equivalent to		Golden Lane	Bishops-gate	Cloak Lane	Snow Hill	Golden Lane	Finsbury Circus
	Millimetres	inches of rain	Monthly Average	Monthly Average	Monthly Average	Monthly Average	Mgs. (S,0.3) per day per 100 sq. cm.
			Parts per 100 m. parts of air
J anuary	36	1.43	13	19	19	17	4.44	3.39
February	46	1.80	13	17	17	15	4.21	2.96
March	36	1.44	14	14	18	13	4.36	2.60
April	10	0.41	7	13	11	8	2.79	2.20
May	44	1.74	8	13	10	7	2.74	1.70
June	40	1.60	5	9	8	5	2.05	1.35
July	65	2.55	3	5	8	3	1.41	1.05
August	80	3.14	4	9	6	4	1.46	0.92
September	122	4.80	6	11	8	3	2.50	1.36
October	128	5.06	12	14	13	9	3.97	1.95
November	89	3.51	13	20	14	13	4.19	3.28
December	51	2.00	14	24	19	13	4.48	3.46
Averages:
1960	62	2.46	9	14	13	9	3.22	2.19
1959	41	1.60	11	17	14	12	3.46	2.57
1958	62	2.44	10	14	12	10	3.10	2.66
1957	42	1.66	9	12	11	11	2.71	2.47
1956	44	1.74	10	15	12	13	2.69	2.42
1955	43	1.71	10	13(a)	10(a)	12(a)	2.85	2.57
1955-59	46	1.83	10	14	12	12	2.96	2.54
(a) Measurements for 9 months of the year.