Abstract

THE Committee for the Investigation of Atmospheric Pollution has just issued its first report, from which it is evident that it has carried out its self-appointed task in a thoroughly scien tific and (if the terms are not incompatible) business-like manner. Nineteen towns have under taken a periodical analysis of the impurities carried down by rain falling on different stations, and also of the constituents of the dust deposited on a specially designed dust gauge of standard odimensions. These results have been tabulated in metric tons per sq. kilo, per month under the headings of insoluble matter (including tar, non-tarry carbonaceous matter, ash), soluble matter (including volatile, combustible, and non volatile solids), and sulphuric acid (as sulphate), chlorine (as chloride), and ammonia.

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