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 Brentford and Chiswick]
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| Month | Highest Daily Reading | Monthly Average | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Smoke | Sulphur Dioxide | Staoke | Sulphur Dioxide | |||||||||
| Brentford | Chiswick Heathfield Terrace | Chiswick Staveley Road | Brentford | Chiswick Heathfield Terrace | Chiswick Staveley Road | Brentford | Chiswick Heathfield Terrace | Chiswick Staveley Road | Brentford | Chiswick Heathfield Terrace | Chiswick Staveley Road | |
| Jan. | 642 | 472 | - | 495 | 534 | - | 130 | 122 | - | 129 | 142 | - |
| Feb. | 449 | 319 | - | 436 | 301 | - | 129 | 100 | - | 149 | 117 | - |
| Mar. | 434 | 328 | 410 | 484 | 342 | 558 | 140 | 118 | 115 | 228 | 182 | 254 |
| Apr. | 147 | 136 | 119 | 414 | 290 | 475 | 62 | 58 | 44 | 134 | 114 | 128 |
| May. | 121 | 116 | 113 | 362 | 299 | 301 | 36 | 38 | 32 | 135 | 117 | 120 |
| June. | 51 | 50 | 51 | 276 | 284 | 355 | 20 | 22 | 19 | 97 | 88 | 95 |
| July. | 50 | 66 | 56 | 292 | 170 | 245 | 23 | 29 | 25 | 95 | 86 | 94 |
| Aug. | 40 | 74 | 70 | 155 | 170 | 125 | 16 | 27 | 18 | 76 | 87 | 66 |
| Sept. | 69 | 81 | 69 | 187 | 173 | 191 | 29 | 37 | 29 | 82 | 82 | 77 |
| Oct. | 520 | 565 | 513 | 525 | 476 | 538 | 119 | 124 | 117 | 190 | 191 | 225 |
| Nov. | 465 | 398 | 437 | 420 | 392 | 746 | 175 | 157 | 156 | 178 | 184 | 316 |
| Dec. | 824 | 1084 | 1065 | 2098 | 2081 | 2383 | 200 | 245 | 275 | 380 | 365 | 538 |
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