Accession Number : ADA181624

Title :   Morton Arboretum Bioassays. Earthworm Bioassay Procedures to Evaluate the Extent of Aerially Dispersed Lead and Cadmium in an Urban Arboretum,

Corporate Author : HOOFDGROEP MAATSCHAPPELIJKE TECHNOLOGIE TNO DELFT (NETHERLANDS)

Personal Author(s) : Wilhelm,G S ; Simmers,J W ; Marquenie,J M ; Kelsey,P D

PDF Url : ADA181624

Report Date : 27 Jan 1987

Pagination or Media Count : 8

Abstract : Aerially dispersed heavy metals from a high speed motorway have been shown to be entering an urban arboretum. Lead (Pb) and Cadmium (CD) were found as remote as 930 m from an east-west, multi-lane motorway. Both Pb and Cd were bioavailable to earthworms (Eisenia foetida) and both metals were more concentrated in surface soils than at depths of 1 meter. Seven sampling stations were established at progressive intervals along the 930 m transect. At all sampling stations, soil cores 15 cm deep and replicated four times were collected. The sod was removed from each sample except for one station 33 m away from the motorway. This was retained and tested along with some additional 1 m depth soil cores. All samples were transported to the U.S. Army Engineer Waterways Experiment Station (WES) where bioassay tests utilizing the earthworm (Eisenia foetida) were conducted under controlled conditions.

Descriptors :   *BIOASSAY, *OLIGOCHAETA, *HEAVY METALS, *POLLUTANTS, SAMPLING, CONTROL, METALS, SOILS, SURFACES, STATIONS, CADMIUM, LEAD(METAL), AIR POLLUTION, SOIL TESTS

Subject Categories : Air Pollution and Control
      Biochemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE