Abstract
The rain analyses summarized in this paper bring out very clearly the marked difference in the purity of the atmosphere between the industrial-rural area to the west and south and the purely agricultural area to the north and north-east of Leeds. They show that the sulphur-content of the rain falling at a given station affords a fairly reliable diagnosis of the degree of pollution of the atmosphere by smoke, provided the observations be prolonged over several months. Further, evidence has been obtained in confirmation of that adduced by earlier observers, that the sulphur-content of the leaves of trees may afford useful assistance in the diagnosis of smoke-pollution. In preliminary tests the proportion of sulphur present in the leaf as sulphate gave a sharper grading of the pollution in different districts than the total sulphur. The rain analyses show further that appreciable smoke-pollution still remains throughout the agricultural area at distances of seven miles from the city, the rate of improvement of the atmosphere on passing away from the city into the purely agricultural areas being appreciably slower in the direction of the prevailing winds than in other directions. In a general way, the analyses tend to show that the smoke,
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Citation Formats
Crowther, C, and Stewart, D W.
Distribution of atmospheric impurities in the neighborhood of an individual city. [United Kingdom].
United Kingdom: N. p.,
1912.
Web.
Crowther, C, & Stewart, D W.
Distribution of atmospheric impurities in the neighborhood of an individual city. [United Kingdom].
United Kingdom.
Crowther, C, and Stewart, D W.
1912.
"Distribution of atmospheric impurities in the neighborhood of an individual city. [United Kingdom]."
United Kingdom.
@misc{etde_7204719,
title = {Distribution of atmospheric impurities in the neighborhood of an individual city. [United Kingdom]}
author = {Crowther, C, and Stewart, D W}
abstractNote = {The rain analyses summarized in this paper bring out very clearly the marked difference in the purity of the atmosphere between the industrial-rural area to the west and south and the purely agricultural area to the north and north-east of Leeds. They show that the sulphur-content of the rain falling at a given station affords a fairly reliable diagnosis of the degree of pollution of the atmosphere by smoke, provided the observations be prolonged over several months. Further, evidence has been obtained in confirmation of that adduced by earlier observers, that the sulphur-content of the leaves of trees may afford useful assistance in the diagnosis of smoke-pollution. In preliminary tests the proportion of sulphur present in the leaf as sulphate gave a sharper grading of the pollution in different districts than the total sulphur. The rain analyses show further that appreciable smoke-pollution still remains throughout the agricultural area at distances of seven miles from the city, the rate of improvement of the atmosphere on passing away from the city into the purely agricultural areas being appreciably slower in the direction of the prevailing winds than in other directions. In a general way, the analyses tend to show that the smoke, though in greater quantitiy, is in a higher state of oxidation in the dirtier or more industrial districts - due to more efficient combustion of the coal. Throughout the industrial-rural area abundant evidence of damage to leaves was found, and there can be no doubt of the consequent check to growth.}
journal = []
volume = {5}
journal type = {AC}
place = {United Kingdom}
year = {1912}
month = {Jan}
}
title = {Distribution of atmospheric impurities in the neighborhood of an individual city. [United Kingdom]}
author = {Crowther, C, and Stewart, D W}
abstractNote = {The rain analyses summarized in this paper bring out very clearly the marked difference in the purity of the atmosphere between the industrial-rural area to the west and south and the purely agricultural area to the north and north-east of Leeds. They show that the sulphur-content of the rain falling at a given station affords a fairly reliable diagnosis of the degree of pollution of the atmosphere by smoke, provided the observations be prolonged over several months. Further, evidence has been obtained in confirmation of that adduced by earlier observers, that the sulphur-content of the leaves of trees may afford useful assistance in the diagnosis of smoke-pollution. In preliminary tests the proportion of sulphur present in the leaf as sulphate gave a sharper grading of the pollution in different districts than the total sulphur. The rain analyses show further that appreciable smoke-pollution still remains throughout the agricultural area at distances of seven miles from the city, the rate of improvement of the atmosphere on passing away from the city into the purely agricultural areas being appreciably slower in the direction of the prevailing winds than in other directions. In a general way, the analyses tend to show that the smoke, though in greater quantitiy, is in a higher state of oxidation in the dirtier or more industrial districts - due to more efficient combustion of the coal. Throughout the industrial-rural area abundant evidence of damage to leaves was found, and there can be no doubt of the consequent check to growth.}
journal = []
volume = {5}
journal type = {AC}
place = {United Kingdom}
year = {1912}
month = {Jan}
}