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 Wandsworth, Metropolitan Borough]
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87
Report of the Medical Officer of Health.
LAMBETH WATER COMPANY. (Parts per 100,000.)
Month. | Total Solid Matters | Ammonia | Albuminoid Ammonia | Nitrogen as Nitrates | Total Combined Nitrates | Organic Carbon. | Organic Nitrogen | Oxygen required to oxidise | Chlorine | Colour | Quality | Compared with Kent averages 9 years ending 1076 taken as unity. | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
4 hours at 80º F. | 1 hour at 122º F | Kent. | Lambeth | |||||||||||
January | 30.96 | .001 | 013 | .227 | .269 | .458 | .041 | .151 | .168 | 1.8 | pale brown | indifferent | 1.1 | 8.5 |
February | 34.5 | .0 | .01l | .324 | .351 | .264 | .027 | .168 | .181 | 1.9 | pale yellow | less impure | .9 | 4.9 |
March | 30.74 | .001 | .01l | .242 | .279 | .397 | .036 | .157 | .172 | 1.9 | pale brown | indifferent | .9 | 7.3 |
April | 30.18 | .0 | .008 | .245 | .261 | .161 | .016 | .109 | .118 | 1.75 | pale yellow | good | .8 | 3 |
May | 31.44 | .0 | .013 | .222 | .254 | .402 | .032 | .161 | .176 | 1.6 | pale brown | bad | .8 | 7.3 |
June | 26.92 | trace | .014 | .109 | .210 | .421 | .035 | .154 | .170 | 1.5 | dark brown | unsatisfactory | .9 | 7.7 |
July | 30.94 | .0 | .009 | .258 | .278 | .167 | .020 | .129 | .142 | 1.65 | pale yellow | good | .7 | 3.2 |
August | 27.36 | .0 | .0105 | .183 | .208 | .265 | .025 | .123 | .135 | 1.6 | do. | indifferent | .8 | 4.9 |
September | 30.32 | .0 | .01l | .222 | .242 | .253 | .020 | .122 | .132 | 1.75 | very pale yellow | ditto | .8 | 4.6 |
October | 29.46 | .001 | .0145 | .178 | .219 | .476 | .040 | .209 | .221 | 1.45 | brown | v. unsatisfactory | 1.0 | 8 8 |
November | 35.28 | .0 | 013 | .296 | .326 | .306 | .030 | .214 | .233 | 1.55 | pale brown | indifferent | 1.1 | 5.7 |
December | 33.6 | .0 | .012 | .324 | .359 | .328 | .035 | .168 | .181 | 1.65 | yellow | ditto | .8 | 6.2 |