{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/64644"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/64644","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Lead, cadmium, nickel and zinc concentrations in soil and vegetation associated with highways of different traffic densities","abstract":"Soil and vegetation was collected along four highways of different traffic volumes, at varying distances from the road, and at two control areas. Four sampling periods were conducted throughout the course of a year from August, 1976 to June, 1977. Soil and vegetation samples were tested for concentrations of lead, cadmium, nickel, and zinc. There were general declines in the concentrations of lead, cadmium, nickel, and zinc as proximity to the highway decreased. These declines were significant (P < 0.05) along the highways of greater traffic density. Lead and zinc levels in roadside soil and vegetation exhibited a general decrease with decreasing traffic density. There was not a strong relationship between the levels of cadmium and nickel in soil and vegetation and traffic volume. There was a seasonal pattern to the levels of lead, nickel, and zinc in roadside vegetation, with plants from Period 3 (Feb/Mar) exhibiting the highest levels.","abstract_html":"Soil and vegetation was collected along four highways of different traffic volumes, at varying distances from the road, and at two control areas. Four sampling periods were conducted throughout the course of a year from August, 1976 to June, 1977. Soil and vegetation samples were tested for concentrations of lead, cadmium, nickel, and zinc. There were general declines in the concentrations of lead, cadmium, nickel, and zinc as proximity to the highway decreased. These declines were significant (P &lt; 0.05) along the highways of greater traffic density. Lead and zinc levels in roadside soil and vegetation exhibited a general decrease with decreasing traffic density. There was not a strong relationship between the levels of cadmium and nickel in soil and vegetation and traffic volume. There was a seasonal pattern to the levels of lead, nickel, and zinc in roadside vegetation, with plants from Period 3 (Feb/Mar) exhibiting the highest levels.","abstract_has_math":false,"creators":["Hiller, Anne Lee"],"institution":"Virginia Polytechnic Institute and State University","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Wildlife Management","degree_department":"Wildlife Management","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1978,"date_issued":"1978","date_published":"1978","updated_at":"2026-07-22T22:19:07Z","subjects":[],"languages":["en_US"],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10919/64644","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Wildlife Management"]},{"key":"dc:creator","label":"Author","values":["Hiller, Anne Lee"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2016-02-01T14:45:13Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2016-02-01T14:45:13Z"]},{"key":"dc:date.issued","label":"Date","values":["1978"]},{"key":"dc:publisher","label":"Institution","values":["Virginia Polytechnic Institute and State University"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"dc:type.dcmitype","label":"Dc Type Dcmitype","values":["Text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Wildlife Management"]},{"key":"thesis:degree_level","label":"Degree Level","values":["masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["Virginia Polytechnic Institute and State University"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["en_US"]},{"key":"dc:rights","label":"Dc Rights","values":["In Copyright"]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://rightsstatements.org/vocab/InC/1.0/"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/10919/64644"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Soil and vegetation was collected along four highways of different traffic volumes, at varying distances from the road, and at two control areas. Four sampling periods were conducted throughout the course of a year from August, 1976 to June, 1977. Soil and vegetation samples were tested for concentrations of lead, cadmium, nickel, and zinc. There were general declines in the concentrations of lead, cadmium, nickel, and zinc as proximity to the highway decreased. These declines were significant (P < 0.05) along the highways of greater traffic density. Lead and zinc levels in roadside soil and vegetation exhibited a general decrease with decreasing traffic density. There was not a strong relationship between the levels of cadmium and nickel in soil and vegetation and traffic volume. There was a seasonal pattern to the levels of lead, nickel, and zinc in roadside vegetation, with plants from Period 3 (Feb/Mar) exhibiting the highest levels."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Lead, cadmium, nickel and zinc concentrations in soil and vegetation associated with highways of different traffic densities"]}]}],"canonical_facts":{"dc:contributor.department":["Wildlife Management"],"dc:creator":["Hiller, Anne Lee"],"dc:date.accessioned":["2016-02-01T14:45:13Z"],"dc:date.available":["2016-02-01T14:45:13Z"],"dc:date.issued":["1978"],"dc:description.abstract":["Soil and vegetation was collected along four highways of different traffic volumes, at varying distances from the road, and at two control areas. Four sampling periods were conducted throughout the course of a year from August, 1976 to June, 1977. Soil and vegetation samples were tested for concentrations of lead, cadmium, nickel, and zinc. There were general declines in the concentrations of lead, cadmium, nickel, and zinc as proximity to the highway decreased. These declines were significant (P < 0.05) along the highways of greater traffic density. Lead and zinc levels in roadside soil and vegetation exhibited a general decrease with decreasing traffic density. There was not a strong relationship between the levels of cadmium and nickel in soil and vegetation and traffic volume. There was a seasonal pattern to the levels of lead, nickel, and zinc in roadside vegetation, with plants from Period 3 (Feb/Mar) exhibiting the highest levels."],"dc:description.degree":["Master of Science"],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["http://hdl.handle.net/10919/64644"],"dc:language.iso":["en_US"],"dc:publisher":["Virginia Polytechnic Institute and State University"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:title":["Lead, cadmium, nickel and zinc concentrations in soil and vegetation associated with highways of different traffic densities"],"dc:type":["Thesis"],"dc:type.dcmitype":["Text"],"thesis:degree_discipline":["Wildlife Management"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute and State University"]},"updated_at":"2026-07-22T22:19:07Z"}