Global and local ecological impacts of chloride-based road deicing salts

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dc.contributor.advisor Cameron, Erin K.
dc.contributor.advisor Medeiros, Andrew
dc.coverage.spatial Nova Scotia
dc.creator Silver, Madison E.
dc.date.accessioned 2023-09-14T12:25:12Z
dc.date.available 2023-09-14T12:25:12Z
dc.date.issued 2023-08-22
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/31834
dc.description 1 online resource (v, 84 pages) : colour maps, graphs (some colour)
dc.description Includes abstract and appendices.
dc.description Includes bibliographical references (pages 5-10, 29-33, 62-68, 69-70).
dc.description.abstract Chloride-based road deicers are commonly used for winter road maintenance but can be detrimental in both terrestrial and aquatic environments. The objective of this thesis was to investigate the impacts of road salting both globally and locally in Halifax, Nova Scotia. A metaanalysis of the impacts of road salting across individual, community, and ecosystem levels found that road salt can have significant negative effects across ecological scales. Locally, fifteen wetlands across Halifax were tested to determine whether direct stormwater outflows impacted salinity and soil mineral concentrations more than runoff and identify whether these sites were salinized above recommended thresholds. Although all fifteen wetlands were above the threshold, direct stormwater outflows were not found to significantly impact wetland soil salinity, suggesting that other factors (such as urbanization) may be affecting the salinization of these wetlands. This thesis highlights the need for further research on road salting impacts in understudied ecosystems. en_CA
dc.description.provenance Submitted by Greg Hilliard (greg.hilliard@smu.ca) on 2023-09-14T12:25:12Z No. of bitstreams: 1 Silver_Madison_MASTERS_2023.pdf: 3001471 bytes, checksum: e4a5e7af0afc68b91e3759b6efc8759a (MD5) en
dc.description.provenance Made available in DSpace on 2023-09-14T12:25:12Z (GMT). No. of bitstreams: 1 Silver_Madison_MASTERS_2023.pdf: 3001471 bytes, checksum: e4a5e7af0afc68b91e3759b6efc8759a (MD5) Previous issue date: 2023-08-22 en
dc.language.iso en en_CA
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcsh Deicing chemicals -- Environmental aspects -- Nova Scotia
dc.subject.lcsh Soil salinization -- Nova Scotia
dc.subject.lcsh Salt -- Toxicity testing -- Nova Scotia
dc.subject.lcsh Wetlands -- Environmental aspects -- Nova Scotia
dc.subject.lcsh Stormwater infiltration -- Nova Scotia
dc.title Global and local ecological impacts of chloride-based road deicing salts en_CA
dc.type Text en_CA
thesis.degree.name Master of Science in Applied Science
thesis.degree.level Masters
thesis.degree.discipline Environmental Science
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)
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