[Report of the Medical Officer of Health for Finchley] page 77

Finchley 1963

[Report of the Medical Officer of Health for Finchley]

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Table: CONCENTRATION OF SMOKE AND SULPHUR DIOXIDE

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CONCENTRATION OF SMOKE AND SULPHUR DIOXIDE

MONTH	SMOKE									SULPHUR DIOXIDE (SOa)									RATIO SMOKE TO SO,
	MICROGRAMMES PER CUBIC METRE
	AVERAGE VALUE			HIGHEST VALUE			LOWEST VALUE			AVERAGE VALUE			HIGHEST VALUE			LOWEST VALUE
	1	2	3	1	2	3	1	2	3	1	2	3	1	2	3	1	2	3	1	2	3
January	185	169	159	614	684	613	54	28	33	334	288	257	1458	1357	691	135	111	75	.55	.59	.62
February	211	197	201	473	458	474	67	41	45	393	342	345	647	598	626	145	117	89	.54	.58	.58
March	86	80	154	151	164	226	32	15	26	155	138	205	286	264	349	30	38	60	.55	.58	.75
April	64	63	86	211	123	248	25	26	9	156	130	152	434	235	338	87	78	58	.41	.48	.57
May	37	45	46	58	64	106	21	29	23	88	79	101	163	145	145	29	36	46	.42	.57	.46
June	27	30	29	66	78	232	12	0	6	64	50	47	179	161	141	20	18	14	.42	.60	.62
July	28	37	23	62	66	50	13	11	8	71	67	63	284	197	209	36	27	14	.39	.55	.37
August	26	—	22	59	74	51	6	8	9	67	—	62	139	145	164	24	17	15	.39	—	.35
September	46	50	41	88	85	63	19	18	18	99	93	96	261	214	190	39	28	33	.46	.54	.43
October	59	85	62	105	131	105	20	63	22	128	144	124	233	245	236	59	97	59	.46	.59	.50
November	114	133	116	393	334	324	16	25	24	222	206	223	531	495	531	63	36	75	.51	.65	.52
December	138	122	116	265	254	241	24	32	15	285	229	208	513	406	364	146	111	85	.48	.53	.56

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77
(1) Public Health Department, 308 Regents Park Road, N.3.
(2) Public Library, High Road, East Finchley, N.2.
(3) Public Library, Ravensdale Avenue, North Finchley, N.12.
Smoke— the term "smoke" is used to denote all fine suspended impurity in the atmosphere which is collected by a test
assessed by means of a Reflectometer.
Sulphur Dioxide—includes all acid-producing gases in the air with the exception of carbon dioxide and is the "net acidity"
calculated as sulp'iur dioxide.
filter and
of the air

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

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Finchley 1963

Table: CONCENTRATION OF SMOKE AND SULPHUR DIOXIDE

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