Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Ealing]
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Table 21
AVERAGE MONTHLY SULPHUR DIOXIDE CONCENTRATIONS (microgrammes per cubic metre)
Daily volumetric instruments
1965 | Acton Lane | Chase Road | Eliots Green School | Friars Place Lane | Town Hall Annexe | Walpole Grammar School |
---|---|---|---|---|---|---|
January | 237 | 334 | 203 | 216 | 296 | 177 |
February | 242 | 345 | 311 | 310 | 267 | 241 |
March | 285 | 385 | 214 | 233 | 290 | 208 |
April | 197 | 355 | 244 | 177 | 226 | 217 |
May | 119 | 205 | 101 | 140 | 123 | 102 |
June | 94 | 112 | 117 | 107 | 104 | 91 |
July | 86 | 115 | 70 | 71 | 138 | 64 |
August | 128 | 158 | * | 124 | 157 | * |
September | 116 | 158 | 99 | 102 | 160 | 99 |
Summer average— (April-September) | 123 | 184 | 126 | 120 | 151 | 115 |
October | 336 | 410 | 254 | 352 | 389 | 408 |
November | 276 | 315 | 223 | 255 | 280 | 256 |
December | 189 | 274 | 176 | 210 | 262 | 153 |
Average for year | 192 | 264 | 183 | 191 | 224 | 183 |
* Closed for school holidays.
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