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Further Studies of the Effects of Smoke from Towns upon Vegetation in the Surrounding Areas

Published online by Cambridge University Press:  27 March 2009

Charles Crowther  and
Dan. W. Steuart
Charles Crowther
Affiliation:
(Department of Agriculture, The University, Leeds.)
Dan. W. Steuart
Affiliation:
(Department of Agriculture, The University, Leeds.)
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Extract

In two previous communications a summary has been given of the results obtained in determinations of the relative degree of atmospheric pollution, firstly in various parts of the city of Leeds, and secondly in the surrounding semi-urban and rural areas, to a distance in some directions of seven miles from the centre of the city. The results obtained in the latter series indicated clearly the presence of extensive atmospheric pollution, showing the characteristics of coal smoke, in all parts of the area investigated. The degree of pollution was found to fall rapidly on passing in a northerly direction from the centre of the city into an area free from smoke-producing industries, but less rapidly on passing into similar areas to the north-east and east of the city, owing to the greater dispersion of the city smoke in these directions by the prevailing winds. On the opposite side of the city, from north-west round by south to south-east, smoke pollution was found to be very high in all quarters.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 6 , Issue 4 , December 1914 , pp. 395 - 405
Copyright
Copyright © Cambridge University Press 1914

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References

page 395 note 1 Crowther, and Ruston, . This Journal, IV. 25.Google Scholar

page 395 note 2 Crowther, and Stcuart, . This Journal, V. 391.Google Scholar

page 395 note 3 Crowther and Ruston. This vol. p. 387.

page 396 note 1 Crowther and Steuart, loc. cit. p. 305, station SW 3.

page 396 note 2 Station seven miles east of Leeds. This form of notation was used previously and is used here to indicate the relative positions of the experimental stations with regard to the centre of Leeds.

page 401 note 1 Crowther and Ruston, loc. cit.

page 401 note 2 Crowther and Steuart, loc. cit.

page 401 note 3 i.e. in making the medium 5 c.c. of normal sodium carbonate solution were added to 1 litre of neutralised medium.

page 403 note 1 See Steuart, , Journal of the Board of Agriculture, 01. 1914, p. 897.Google Scholar

page 403 note 2 Cf. Webster's “Town Planting,” pp. 6 and 171.

page 405 note 1 Compare this vol., p. 391