House of Commons (ventilation). Report on an investigation of the ventilation of the debating chamber of the House of Commons / by Dr. M.M. Gordon.

Great Britain. Office of Works and Public Buildings.

Date:: 1905-06

Credit: House of Commons (ventilation). Report on an investigation of the ventilation of the debating chamber of the House of Commons / by Dr. M.M. Gordon. Source: Wellcome Collection.

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$dh Control Tests. t , | H E ‘ Debate in p : : Condition, | Whiteun | cooeionally | Progress | Bebatein | Debatein | Debate in House Empty. (Baia), - iS Empty. Avcompes | oy. No. I. 2. on 4, 5. 6. Day . ? May 26 May 16 | May 10 May 11 May 17 May 18 Hour (p.m.)... ~-830t0 | 7t8 | 840to | 630to | 450to | 9.35 to 4,30. 4.40, 7.30. 6.50.0 ela, Exposure in minutes 60 60 | 60. 60 120 80 Inlet :.: B87 36 |bemioy) 79 394 eo ee Passage after fan 320 686 a oe. 571. | 289 Cotton-wool filter— et! | . | Under Chair 10 59 2 25 Taine cE Pe middia...| 130 155 15 38 m5 |} 62 O1 Bar 164. BIT SA NB 63 154 89 Battery Chamber— . Under Chair ... 42 5a | 11 18 71 18 » middle. 42 Te | 25 29 126 19 Dt NBat\s, >... ATS IN X83 161 195 88 ti Equalising Cham- ber— Under Chair ... | 60 usp 154 120 78 17 » middle... 74. 70 15 45 92 22 | Barked... 43 52 917 367 388 137 The figures in heavy type show an increase of incidence due to showers of bacteria from Members’ boots. Having ascertained that the air at these three points was being polluted by bacteria brought in on Members’ boots, further tests were next made in order to determine the degree to which air under other parts of the floor of the Debating Chamber was polluted from the same cause. Detailed tests of the general bacterial incidence were accordingly made, chiefly in the Equalising Chamber, but also in the Battery Chamber, and in the inside of the cotton-wool filter. Detailed Tests of the general Bacterial Incidence in the Equalising — Chamber. The results obtained in four tests are shown in the accompanying diagrams, in which the numbers yielded by the various plates are recorded at spots corresponding to those at which the plates they refer to had been exposed. : The figures show that the air of the Equalising Chamber is, as a rule, more polluted below the Centre Gangway, between the Bar and the Lobby door under the clock, than below other parts of the Debating Chamber. The excess of bacterial incidence beneath the locality mentioned is very marked in Tests 2, 3, and 4. The second worst place was found to be below each of the two side Gangways. | 24080 K 2$