[Report of the Medical Officer of Health for Brentford and Chiswick] page 46

Brentford and Chiswick 1952

[Report of the Medical Officer of Health for Brentford and Chiswick]

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Table: TABLE XIV

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TABLE XIV

Month	Highest Daily Average				Monthly Average
	Sulphur Dioxide p.p.m.		Smoke mg/m3		Sulphur Dioxide p.p.m.		Smoke mg/m3
	Btfd.	Chis.	Btfd.	Chis.	Btfd.	Chis.	Btfd.	Chis.
Jan.	0.198	0.156	0.356	0.406	0.080	0.076	0.154	0.152
Feb.	0.302	0.158	0.385	0.433	0.096	0.075	0.213	0.186
Mar	0.144	0.137	0.257	0.296	0.065	0.060	0.115	0.098
Apr.	0.118	0.094	0.303	0.162	0.056	0.046	0.080	0.078
May.	0.088	0.103	0.181	0.168	0.040	0.043	0.071	0.076
Jun.	0.057	0.068	0.081	0.058	0.023	0.023	0.041	0.031
Jul.	0.069	0.051	0.064	0.060	0.024	0.024	0.032	0.027
Aug.	0.269	0.199	0.092	0.115	0.067	0.024	0.048	0.042
Sep.	0.139	0.032	0.184	0.123	0.060	0.012	0.071	0.056
Oct.	0.158	0.080	0.427	0.238	0.033	0.028	0.111	0.097
Nov.	0.338	0.218	0.297	0.523	0.086	0.088	0.126	0.188
Dec.	0.122	0.848	O.361	0.665	0.074	0.119	0.203	0.219

Table: TABLE XVSummary of Readings taken at the Chiswick Station during the Fog Period - 3rd to 9th December.

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TABLE XV

Summary of Readings taken at the Chiswick Station during the Fog Period - 3rd to 9th December.

Date	Sulphur Dioxide p.p.m.	Smoke mg/m3
3.12.52	0.019	0.223
4.12.52	0.074	0.665
5.12.52	0.341	0.642
6.12.52	0.848	0.421
7.12.52	0.309	0.351
8.12.52	0.309	0.351
9.12.52	0.168	0.498