[Report of the Medical Officer of Health for Hillingdon] page 65

Hillingdon 1971

[Report of the Medical Officer of Health for Hillingdon]

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Table: Monthly Averages for Smoke and Sulphur Dioxide in Microgrammes per Cubic Metre for 1971

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Monthly Averages for Smoke and Sulphur Dioxide in Microgrammes per Cubic Metre for 1971

Month	76 High St., Northwood		West Mead Clinic, South Ruislip		Coldharbour Lane, Hayes		Grange Park School, Lansbury Dr., Hayes		Dragonfield, High Street, Uxbridge		Oak Farm School, Long Lane, Hillingdon		Drayton Hall, Station Rd. West Drayton
Month	Smoke	SO₂	Smoke	SO₂	Smoke	SO₂	Smoke	SO₂	Smoke	SO₂	Smoke	SO₂	Smoke	SO₂
January	64	105	64	195	49	175	49	176	62	126	53	167	72	220
February	42	103	57	65	38	86	40	107	54	62	45	105	51	105
March	34	76	20	109	16	99	20	120	31	76	20	117	27	112
April	25		23	136	28	136	21	139	35	112	25	160	38	165
May	64	70	15	110	19	114	45	106	21	76	17	129	35	128
June	12	50	12	75	12	64	14	80	16	57	13	77
July	10	48	13	73	13	76	12	61	17	53	14	62
August	13	35	14	50	10	57	15	44	65	44
September	30	51	37	86	17	79	35	88	34	75		118
October	31	85	21	127	13	88	31	113	37	88	33	114	58	155
November	47	80	35	118			37	124	31	75	35	101	75	146
December	56	70	42	125	54	128	40	106	48	74	44		77	151