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 11
AVERAGE MONTHLY SULPHUR DIOXIDE CONCENTRATIONS (microgrammes per cubic metre)
Daily volumetric instruments
| 1967 | * Acton Lane | Chase Road | Eliots Green School | * Friars Place Lane | + North- cote Avenue | Town Hall Annexe | Walpole Grammar School |
|---|---|---|---|---|---|---|---|
| January | 247 | 366 | 187 | 235 | - | 284 | 123 |
| February | 218 | 307 | 156 | 201 | - | 224 | 164 |
| March | 143 | 237 | 86 | 106 | - | 168 | 92 |
| Winter average (Oct. 1966 -Mar.1967) | 201 | 287 | 149 | 181 | - | 237 | 143 |
| April | 149 | 189 | 137 | 139 | - | 154 | 133 |
| May | 120 | 210 | 88 | 124 | - | 122 | 109 |
| June | 86 | 115 | 75 | 73 | - | 109 | 57 |
| July | 82 | 117 | 70 | 74 | - | 79 | 76 |
| August | - | 149 | - | - | - | 101 | - |
| September | - | 141 | 71 | - | - | 69 | 71 |
| Summer average (April -Sept. 1967) | - | 143 | 90 | - | - | 108 | 91 |
| October | - | 159 | 64 | - | 75 | 109 | 63 |
| November December | - | 311 357 | 218 213 | - | 212 200 | 271 219 | 287 235 |
| Average for year 1967 | - | 221 | 124 | - | - | 159 | 128 |
| 1966 | 172 | 224 | 157 | 164 | - | 223 | 153 |
* Site discontinued August, 1967.
† Site commenced October, 1967.
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