EFFECTS OF DEICING SALTS ON WATER QUALITY AND BIOTA - LITERATURE REVIEW AND RECOMMENDED RESEARCH

A REVIEW, COMPILATION, AND INTERPRETATION IS PRESENTED OF THE STATE OF KNOWLEDGE, WITH RECOMMENDATIONS FOR NEEDED RESEARCH ON THE EFFECTS OF DEICING SALTS ON WATER SUPPLIES FOR DOMESTIC, AGRICULTURAL, FISH, AND WILDLIFE USES. THIS REPORT COVERS THE LITERATURE REVIEW AND SURVEY PHASE OF THE STUDY. CURRENT ICE AND SNOW CONTROL PRACTICES ARE REVIEWED, AND THE RESULTS OF A SURVEY ON THE USE OF DEICING SALTS BY THE STATE HIGHWAY DEPARTMENTS AND TOLL AUTHORITIES ARE PRESENTED. IT WAS COMPUTED THAT SEVERAL STATES APPLIED MORE THAN 20 TONS OF DEICING SALT PER SEASON PER LANE-MILE TO SOME HIGHWAYS. THIRTEEN STATES REPORTED INJURY TO PLANTS, AND 12 STATES REPORTED WATER CONTAMINATION AS SIDE EFFECTS FROM THE USE OF SALTS. THE EFFECTS OF DEICING SALTS ON WATER SUPPLIES FOR MAN, ANIMALS, FISH, AND WILDLIFE IS MAINLY AN OBJECTION TO TASTE, BUT EXTREMELY HIGH SALT CONCENTRATION CAUSES A DECREASE IN PRODUCTIVITY. IT WAS CONCLUDED THAT USING LARGE QUANTITIES OF DEICING SALTS IS A CONTRIBUTING FACTOR TO THE INJURIOUS EFFECTS ON PLANT GROWTH ALONG HIGHWAYS. DEICING SALTS HAVE NOT CONTAMINATED MAJOR DRAINAGE AREAS IN THE NORTH CENTRAL AND NORTH EAST UNITED STATES WHERE A HIGH DILUTION FACTOR EXISTS. HOWEVER, IN OTHER AREAS WATER VOLUME IS USUALLY SMALL NEAR ROADSIDE AREAS, AND DILUTION IS NOT ALWAYS SUFFICIENT TO PREVENT HIGH SALT CONCENTRATION. HOWEVER, THE MAGNITUDE OF THE SERIOUSNESS OF SUCH CONTAMINATION IS UNCERTAIN.

  • Availability:
  • Supplemental Notes:
    • Proj 16-1, PART II, 70 PP, FIGS, TABS, 5 APP
  • Authors:
    • Hanes, R E
    • Zelazny, L W
    • Blazer, R E
  • Publication Date: 1970

Media Info

  • Serial:
    • NCHRP Report
    • Issue Number: 91
    • Publisher: Transportation Research Board
    • ISSN: 0077-5614

Subject/Index Terms

Filing Info

  • Accession Number: 00204290
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Aug 3 1970 12:00AM