CHANGES IN CHEMICAL COMPOUNDS IN GROUND SURROUNDING THE HIGHWAY

MARKKEMISKA FOERAENDINGAR UTMED TRAFIKLEDER

The concentration of heavy metals, mercury, manganese, copper, silver, zinc, cadmium, lead, molybdenum and tungsten, and the effect of salt (nacl) used as de-icing agent, on salt content and salt balance, were examined along a main road over ground level with the road and used as pasture. The road carries approx. 8500 vehicles/day. The soil is sand rich in humus in the top 5 cm. Samples were taken from the top 5 cm at distances of 2 M up to 64 M, and down to 50 cm in 5 cm increments at some intermediate points. It is shown that hg and mn contents are independent of distance from the road but co-vary with humus content. Other heavy metals are distance dependent, with increases nearer the road. Nacl is applied at the rate of approx. 5.6 tons/km per winter. There is a 15-fold increase in salt concentration within splash distance. There is a change in ion balance; since na and cl ions are both mobile, this occurs to a depth of 50 cm. Heavy metals and salt are found in larger quantities inside a 5-10 M strip next to the road. /TRRL/

  • Corporate Authors:

    Institution for Lantbrukets Hydrotekoik

    750 07 Uppsala 7,   Sweden 
  • Authors:
    • Andersson, A
    • Mattssor, L
  • Publication Date: 1972

Language

  • Swedish

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 7 p.
  • Serial:
    • Grundfoerbaetting
    • Issue Number: 4
    • Publisher: Institution for Lantbrukets Hydrotekoik

Subject/Index Terms

Filing Info

  • Accession Number: 00096787
  • Record Type: Publication
  • Source Agency: Swedish National Road and Traffic Research Institute
  • Files: ITRD, TRIS
  • Created Date: Jul 15 1975 12:00AM