[Report of the Medical Officer of Health for London, City of ] page 22

City of London 1963

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

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TABLE I - Results obtained in 1963 of the monthly observations of rainfall and deposited matter by means of the deposit gauges.

MONTH	Rainfall collected in deposit gauge				DEPOSITS
	Equivalent to				Insoluble		Soluble		Total
	Millimetres	inches of rain	Millimetres	inches of rain	Tons per square mile
	STATIONS (see note below)
	A		B		A	B	A	B	A	B
January	13	0.52	6	0.24	1.49	4.90	10.63	6.10	12.12	11.01
February	8	0.33	9	0.36	2.05	12.92	5.40	7.99	7.45	20.91
March	49	1.94	56	2.20	5.20	19.26	90.45	12.69	95.65	31.95
April	44	1.74	43	1.68	25.94	14.56	7.95	7.05	33.89	21.61
May	44	1.73	39	1.53	41.14	11.07	8.64	6.04	49.78	17.12
June	36	1.42	44	1.72	37.82	9.70	10.07	5.67	47.89	15.36
July	25	0.98	55	2.17	9.84	11.61	8.35	31.65	18.18	43.26
August	59	2.33	59	2.34	17.62	11.34	19.81	8.99	37.43	20.34
September	40	1.56	41	1.61	18.81	13.66	15.30	6.31	34.11	19.97
October	33	1.32	31	1.24	16.36	11.31	8.78	7.28	25.14	18.59
November	75	2.96	100	3.95	9.01	16.91	12.02	13.89	21.03	30.81
December	14	0.55	14	0.57	10.33	12.55	5.80	7.15	16.13	19.70
Averages:
1963	37	1.45	41	1.63	16.30	12.48	16.93	10.07	33.23	22.55
1962	43	1.69	40	1.58	14.80	14.21	9.51	8.49	24.31	22.69
1961	42(b)	1.66(b)	44	1.71	14.02(b)	15.08	9.05(b)	7.80	23.05(b)	22.88
1960	62	2.46	63	2.49	14.58	12.39	7.55	8.15	22.13	20.55
1959	41	1.60	44(b)	1.72(b)	19.81	14.81(b)	8.16	19.00(b)	29.64	23.80(b)
1958	62	2.44	66(a)	2.58(a)	18.88	16.39(a)	7.39	12.06(a)	26.27	28.45(a)
1958-1962	50	1.97	51	2.01	16.42	14.58	8.33	11.10	25.08	23.67

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NOTE : A — Golden Lane.
(a) average for 7 months
B — Guildhall from 1st June 1958.
(b) average for 10 months

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TABLE II - Results obtained in 1963 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	Micrograms per cubic metre	Micrograms per cubic metre	Micrograms per cubic metre	Micrograms per cubic metre
January	13	0.52	247	266	265	133
February	8	0.33	223	214	300	242
March	49	1.94	88	216	213	77
April	44	1.74	81	196	108	73
May	44	1.73	47	151	97	53
June	36	1.42	36	121	64	43
July	25	0.98	36	126	50	41
August	59	2.33	49	116	58	40
September	40	1.56	65	129	83	62
October	33	1.32	75	155	84	71
November	75	2.96	102	259	106	94
December	14	0.55	145	252	223	119
Averages:
1963	37	1.45	100	183	138	87
1962	43	1.69	84	217	106	77
1961	42(a)	1.66(a)	90	200	100	80
1960	62	2.46	100	160	130	60
1959	41	1.60	100	200	180	90
1958	62	2.44	90	200	160	70
1958-1962	50	1.97	93	195	135	75

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(a) Average for 10 months
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