[Report of the Medical Officer of Health for London County Council] page -

London County Council 1899

[Report of the Medical Officer of Health for London County Council]

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Table: Normal Sewer Air Experiments.Table I.

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Normal Sewer Air Experiments.

Table I.

Number of Experiment.	Date of Experiment.	Direction and Force of Wind.	Baro metrical pressure.	Temperature (shade).	Tempera ture of Sewer Air.	Current of Air in Sewer.	Quantity of Sewage.	Vols. of CO2 in 10,000 Fresh Air.	Vols. of CO2 in l0,000 Sewer Air.	Time Experiment began.	Time Experiment finished.	Organisms in 10 litres of Fresh Air.			Organisms in 10 litres of Sewer Air.			Remarks.
Number of Experiment.	Date of Experiment.	Direction and Force of Wind.	Baro metrical pressure.	Temperature (shade).	Tempera ture of Sewer Air.	Current of Air in Sewer.	Quantity of Sewage.	Vols. of CO2 in 10,000 Fresh Air.	Vols. of CO2 in l0,000 Sewer Air.	Time Experiment began.	Time Experiment finished.	Moulds.	Bacteria.	Total.	Moulds.	Bacteria.	Total.	Remarks.
1	1891 Aug. 14th	W.N.W. Good breeze	30.08	68	67	2 ft. per second with flow	More than normal.	Not taken.	12.14	3.0 p.m.	5.30 p.m.	33	86	119	31	4	35	Fine dry day.
2	Aug. 17th	S.W. Light breeze	29.82	70	73	Very slight and variable	„	2.54	16.04	11.0 a.m.	1.10 p.m.	92	18	110	175	19	194	Fine and warm.
3	Aug. 18th	Very calm; morning variable	29.67	70	70	Almost dead calm	„	2.80	14.76	10.30 a.m.	12.30 p.m.	18	4	22	92.5	16.5	109	Sultry morning after heavy rain.
4	Sept. 9th	S.E. Light breeze	30.17	–	63.5	1 ft. per second with flow	Less than normal.	2.82	7.66	10.30 a.m.	12.50 p.m.	23	13	36	13.5	3	16.5	Very fine, heavy dew overnight.
5	Sept.10th	S.E. Light breeze	30.19	85	64	2 ft. per second with flow	„	2.58	5.11	1.30 p.m.	4.0 p.m.	13	9	22	8	6.5	14.5	Very fine and very hot.
6	Sept.30th	S.W. Moderate breeze	29.92	65	64	Less than 1ft. per second against flow	„	2.71	4.40	10.30 a.m.	1.0 p.m.	9	13	22	17	12	29	Very fine day.
7	Oct. 2nd	W. Moderate breeze	29.89	59	64	Very slight, variable	„	2.67	5.43	10.30 a.m.	1.0 p.m.	24.5	6.5	31	16	13.5	29.5	„ „
8	Oct. 27th	E.S.E. Very strong breeze	30.02	–	60	Very slight with flow	„	3.18	7.64 7.64 8.65	–	–	–	–	–	–	–	–	Moderately fine.