Vertical and horizontal variation in natural chloroform in two adjacent soil profiles in a coniferous forest

Naturally produced chloroform is occasionally detected in soil and groundwater of non-urban areas in concentrations that can exceed the regulatory levels. In this study, we present the distribution of naturally produced chloroform in a temperate coniferous forest from top soil to upper groundwater....

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Bibliographic Details
Main Authors: ALBERS, C. N, LAIER, T, JACOBSEN, O. S
Format: Conference Proceeding
Language:English
Subjects:
Chloroform
Coniferous forests
Domains
Earth sciences
Earth, ocean, space
Engineering and environment geology. Geothermics
Exact sciences and technology
Forests
Fungi
Groundwater
Pollution, environment geology
Soil profiles
Soil properties
Soils
Surficial geology
Temperate forests
Urban areas
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Summary:Naturally produced chloroform is occasionally detected in soil and groundwater of non-urban areas in concentrations that can exceed the regulatory levels. In this study, we present the distribution of naturally produced chloroform in a temperate coniferous forest from top soil to upper groundwater. Chloroform is most likely produced by the activity of fungi, and the production varies therefore with the domains of certain unidentified fungi. We show that the differences in concentration within 10 metres can approach two orders of magnitude in the top soil. The difference in chloroform concentrations in upper groundwater within the same distance is almost one order of magnitude. The concentration of chloroform in the top soil varies significantly with season, while season affect deeper levels much less.
ISSN:1746-4498
1743-3509
DOI:10.2495/GEO080161