On the natural α-activity of the air near the ground Part A. Method of Measuring and a few Preliminary Results

S. Israelsson; E. Knudsen; E. Ungethm; L. Dahlgren

doi:10.3402/tellusa.v24i4.10651

On the natural α-activity of the air near the ground Part A. Method of Measuring and a few Preliminary Results

Tellus

Volume 24 (1972): Issue 4

By: S. Israelsson, E. Knudsen, E. Ungethm and L. Dahlgren

Open Access

|Jan 1972

Abstract

A method has been developed by which the concentration of the natural ∝-activity of the air near the ground can be studied over a wide range of variation. The method is based on an aspiration process. The apparatus is mainly used in order to measure rapid fluctuations of the ∝-activity of the air near the ground. The preliminary results presented in this paper show a connection between the fluctuations of the natural ∝-activity and the temperature probably due to a connecting link–the vertical motion. Further simultaneous measurements of the natural ∝-activity and the temperature in the layer up to 3 metres above the ground have been made. The gradients were fairly steep near the ground and decreased rapidly with height.

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Articles in this issue

DOI: https://doi.org/10.3402/tellusa.v24i4.10651 | Journal eISSN: 3035-9554

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Language: English

Page range: 368 - 379

Submitted on: Sep 13, 1971

Accepted on: Feb 11, 1972

Published on: Jan 1, 1972

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 1972 S. Israelsson, E. Knudsen, E. Ungethm, L. Dahlgren, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 24 (1972): Issue 4