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 12
AVERAGE MONTHLY SULPHUR DIOXIDE CONCENTRATIONS (microgrammes per cubic metre)
Daily volumetric instruments
| 1966 | Acton Lane | Chase Road | Eliots Grn. School | Friars Place Lane | Town Hall Annexe | Walpole Grammar School |
|---|---|---|---|---|---|---|
| January | 297 | 373 | 288 | 253 | 425 | - |
| February | 193 | 251 | 168 | 200 | 266 | 192 |
| March | 193 | 269 | 233 | 180 | 267 | 178 |
| Winter average (Oct. 1965 -March, 1966) | 247 | 315 | 224 | 242 | 315 | 237 |
| April | 227 | 258 | 216 | 274 | 181 | |
| May | 124 | 175 | 79 | 145 | 173 | 101 |
| June | 97 | 143 | - | 88 | 136 | 155 |
| July | 83 | 101 | 44 | 95 | 104 | 65 |
| August | 101 | 131 | - | 103 | 134 | - |
| September | 149 | 178 | 131 | 137 | 153 | - |
| Summer average (April - September, 1966) | 130 | 164 | 85 | 131 | 162 | 125 |
| October | 129 | 234 | 137 | 129 | 198 | 134 |
| November | 229 | 283 | - | 235 | 276 | 206 |
| December | 241 | 297 | 180 | 182 | 270 | 161 |
| Average for year, 1966 | 172 | 224 | 157 | 164 | 223 | 153 |
| year, 1965 | 192 | 264 | 183 | 191 | 224 | 183 |