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Phytotoxicity of zinc and manganese to seedlings grown in soil contaminated by zinc smelting

Environmental Pollution

By:
, , , and
DOI: 10.1016/j.envpol.2013.04.013

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Abstract

Historic emissions from two zinc smelters have injured the forest on Blue Mountain near Palmerton, Pennsylvania, USA. Seedlings of soybeans and five tree species were grown in a greenhouse in a series of mixtures of smelter-contaminated and reference soils and then phytotoxic thresholds were calculated. As little as 10% Palmerton soil mixed with reference soil killed or greatly stunted seedlings of most species. Zinc was the principal cause of the phytotoxicity to the tree seedlings, although Mn and Cd may also have been phytotoxic in the most contaminated soil mixtures. Calcium deficiency seemed to play a role in the observed phytotoxicity. Exposed soybeans showed symptoms of Mn toxicity. A test of the effect of liming on remediation of the Zn and Mn phytotoxicity caused a striking decrease in Sr-nitrate extractable metals in soils and demonstrated that liming was critical to remediation and restoration.

Geospatial Extents

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Phytotoxicity of zinc and manganese to seedlings grown in soil contaminated by zinc smelting
Series title:
Environmental Pollution
DOI:
10.1016/j.envpol.2013.04.013
Volume
179
Year Published:
2013
Language:
English
Publisher:
Elsevier
Contributing office(s):
Patuxent Wildlife Research Center
Description:
10 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Environmental Pollution
First page:
167
Last page:
176
Country:
United States
State:
Pennsylvania
City:
Palmerton
Other Geospatial:
Blue Mountain