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 SULPHUR DIOXIDE
Smoke (microgrammes per cubic metre) | Sulphur dioxide (microgrammes per cubic metre) | |||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Monthly average | Highest dally reading | Monthly average | Highest dally reading | |||||||||||||||||
Sites | a | b | C | d | e | a | b | c | d | e | a | b | c | d | e | a | b | c | d | e |
January | 144 | 102 | 105 | 168 | 232 | 310 | 286 | 279 | 361 | 451 | 235 | 229 | 114 | 180 | 344 | 504 | 501 | 394 | 465 | 728 |
February | 104 | 117 | 103 | 190 | 269 | 305 | 364 | 349 | 497 | 616 | 247 | 179 | 176 | 201 | 287 | 1089 | 448 | 848 | 974 | 1383 |
March | 192 | 176 | 130 | 275 | 237 | 452 | 579 | 354 | 680 | 600 | 247 | 303 | 194 | 206 | 311 | 656 | 716 | 536 | 608 | 752 |
April | 95 | 61 | 55 | 90 | 173 | 152 | 134 | 211 | * | 160 | 164 | 126 | 162 | * | 367 | 269 | 287 | 353 | * | |
May | 41 | 49 | 36 | 64 | * | 102 | 173 | 143 | 214 | * | 116 | 116 | 92 | 99 | * | 272 | 304 | 243 | 261 | * |
June | 31 | 36 | 20 | 29 | * | 82 | 118 | 79 | 96 | * | 82 | 89 | 69 | 69 | * | 186 | 192 | 144 | 127 | * |
July | 35 | 46 | 28 | 38 | 36 | 86 | 114 | 64 | 90 | 80 | 60 | 80 | 63 | 69 | 64 | 124 | 188 | 164 | 140 | 145 |
August | 18 | 17 | 10 | 17 | 16 | 76 | 89 | 42 | 78 | 79 | 78 | 82 | 68 | 69 | 59 | 278 | 336 | 352 | 252 | 248 |
September | 43 | 41 | 27 | 47 | 46 | 139 | 165 | 101 | 151 | 128 | 86 | 89 | 66 | 83 | 79 | 218 | 230 | 172 | 210 | 217 |
October | 102 | 84 | 68 | 121 | 110 | 411 | 302 | 196 | 465 | 440 | 204 | 206 | 150 | 167 | 173 | 353 | 371 | 324 | 289 | 339 |
November | 204 | 192 | 134 | 222 | 227 | 645 | 619 | 360 | 574 | 471 | 313 | 386 | 241 | 300 | 345 | 749 | 944 | 714 | 792 | 803 |
December | 255 | 261 | 207 | 266 | 305 | 1674 | 1283 | 1336 | 1121 | 1200 | 483 | 628 | 462 | 466 | 495 | 2453 | 3078 | 2566 | 2182 | 2283 |
29
Sites: (a) Town Hall (b) Highgate Depot, North Hill (c) Fortis Green Depot
(d) Burghley Road pumping station (e) Lorne House, Lorne Road
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