NDLI: Contaminated area instability along Ångermanälven River, northern Sweden

Content Provider	Springer Nature Link
Author	Ströberg, A. Ebert, K. Jarsjö, J. Frampton, A.
Copyright Year	2017
Abstract	Industrially utilized river basins are frequently exposed to contaminants originating from polluting activities. However, the physical instability and probability of mass movement mobilization of contaminated soil into rivers have only received little attention. In this study, we present a GIS-based method to produce a regional overview of where and how contaminated areas are potentially exposed to slope instability. A landslide susceptibility-index was used to study the degree and distribution of overlap between contaminated sites and unstable ground. A contaminated area instability hazard classification was produced integrating slope instability and contamination risk classification. Our results indicate that mass movement can be tied mainly to a slope gradient ≥16°, a proximity to the river that is <500 m, a distance of <500 m from roads, concave surface curvature, and sand- and silt soils. Forty-six (22%) of all considered contaminated sites are located within areas with a non-negligible slope instability, of which a majority, 30 sites (14%) are situated on ground with a low or moderate instability. Three sites with a class 2 contamination risk (the 2nd highest class) are located on ground with a very high slope instability.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	01676369
Journal	Environmental Monitoring and Assessment
Volume Number	189
Issue Number	3
e-ISSN	15732959
Language	English
Publisher	Springer International Publishing
Publisher Date	2017-02-20
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Local soil contamination Slope instability Rivers Mass movement Risk assessment Monitoring/Environmental Analysis Environmental Management Ecotoxicology Atmospheric Protection/Air Quality Control/Air Pollution Ecology
Content Type	Text
Resource Type	Article
Subject	Pollution Medicine Management, Monitoring, Policy and Law

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