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 Islington Borough]
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Concentration of Smoke and Sulphur Dioxide recorded by the Volumetric method at the three sites in this Borough
Station | Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. |
---|---|---|---|---|---|---|---|---|---|---|---|---|
The Treatment Centre, Seven Sisters Road. | ||||||||||||
Smoke (micrograms per cubic metre) Monthly average | 124 | 176 | 150 | 110 | 70 | 36 | 28 | 34 | 71 | 125 | 155 | 148 |
Highest recording | 446 | 492 | 410 | 284 | 191 | 66 | 63 | 68 | 157 | 350 | 275 | 468 |
Health Department, Upper Street | ||||||||||||
Snoke (micrograms per cubic metre) Monthly average | 142 | 108 | 122 | 85 | 63 | 33 | 26 | 40 | 69 | 150 | 149 | 183 |
Highest recording | 446 | 362 | 424 | 210 | 124 | 66 | 48 | 90 | 190 | 396 | 278 | 439 |
Health Centre, Pine Street | ||||||||||||
Smoke (micrograms per cubic metre) Monthly average | 125 | 93 | 89 | 84 | 67 | 42 | 31 | 43 | 89 | 135 | 135 | 175 |
Highest recording | 285 | 199 | 248 | 124 | 360 | 73 | 69 | 74 | 162 | 324 | 256 | 438 |
The Treatment Centre, Seven Sisters Road. | ||||||||||||
Sulphur Dioxide (micrograms per cubic metre) Monthly average | 305 | 251 | 354 | 231 | 137 | 108 | 81 | 96 | 146 | 275 | 260 | 390 |
Highest recording | 716 | 897 | 567 | 418 | 407 | 291 | 178 | 314 | 275 | 729 | 476 | 7 38 |
Health Department, Upper Street | ||||||||||||
Sulphur Dioxide (micrograms per cubic metre Monthlv average | 303 | 241 | 321 | 247 | 152 | 114 | 70 | 106 | 115 | 27 2 | 264 | 297 |
Highest recording | 837 | 740 | 605 | 578 | 499 | 374 | 247 | 299 | 241 | 802 | 595 | 820 |
Health Centre, Pine Street | ||||||||||||
639 | 298 | 389 | 251 | 204 | 113 | 102 | 143 | 152 | 370 | 327 | 425 | |
Highest recording | 1028 | 716 | 790 | 807 | 487 | 290 | 158 | 284 | 280 | 974 | 788 | 838 |