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 Hornsey, Borough of]
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ATMOSPHERIC POLLUTION - MEASUREMENT OF SMOKE AND SURPHUR DIOXIDE
Smoke (microgrammes per cubic metre) | Sulphur dioxide (microgrammes per cubic metre) | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Monthly average | Highest daily reading | Monthly average | Highest daily reading | |||||||||||||||||
Sites | a | b | c | d | e | a | b | c | d | e | a | b | c | d | e | a | b | c | d | e |
January | 190 | 180 | 98 | 269 | 248 | 868 | 956 | 517 | 1236 | 958 | 295 | 334 | * | 354 | 354 | 1130 | 1400 | 450 | 1530 | 1370 |
February | 239 | 294 | 203 | 320 | 280 | 509 | 518 | 377 | 623 | 533 | 372 | 483 | 273 | 335 | 401 | 649 | 954 | 562 | 608 | 693 |
March | 99 | 89 | 68 | 130 | 127 | 213 | 256 | 210 | 337 | 217 | 171 | 197 | 88 | 145 | 167 | 426 | 503 | 211 | 280 | 520 |
April | 79 | 92 | 52 | 104 | 107 | 165 | 249 | 119 | 282 | 235 | 164 | 193 | 100 | 132 | 148 | 307 | 390 | 222 | 287 | 286 |
May | 48 | 25 | 33 | 65 | 53 | 109 | 77 | 93 | 151 | 165 | 95 | 92 | 72 | 71 | 72 | 181 | 187 | 147 | 146 | 132 |
June | 29 | 31 | 21 | 27 | 28 | 88 | 76 | 75 | 83 | 87 | 70 | 97 | 64 | 55 | 82 | 174 | 233 | 151 | 121 | 194 |
July | 24 | 30 | 22 | 27 | 29 | 63 | 110 | 59 | 69 | 81 | 67 | 70 | 66 | 68 | 67 | 178 | 163 | 133 | 160 | 155 |
August | 34 | 46 | 35 | * | 41 | 90 | 143 | 89 | 83 | 96 | 70 | 82 | 68 | * | 71 | 161 | 164 | 162 | 112 | 170 |
September | 46 | 42 | 27 | * | 43 | 124 | 99 | 69 | 117 | 110 | 116 | 109 | 129 | * | 107 | 210 | 228 | 218 | 223 | 243 |
October | 73 | 49 | 43 | 72 | 70 | 114 | 105 | 91 | 114 | 102 | 162 | 180 | 140 | 157 | 176 | 289 | 780 | 252 | 302 | 315 |
November | 125 | 97 | 117 | 152 | 133 | 274 | 367 | 418 | 540 | 528 | 223 | 233 | 205 | 207 | 231 | 478 | 451 | 717 | 414 | 628 |
December | 199 | 178 | 129 | 245 | 244 | 352 | 325 | 254 | 425 | 380 | 221 | 255 | 256 | 236 | 252 | 364 | 491 | 432 | 441 | 530 |
Sites: (a) Town Hall (b) Highgate Depot, North Hill (c) Fortls Green Depot
(d) Burghley Road pumping station (e) Lome House, Lome Road
* Apparatus not working.