Toxicity tests of soil contaminated by recycling of scrap plastics.

Ming Hung WONG*, V. W. Chui

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review


The present investigation studied the toxicity of soil contaminated by untreated discharge from a factory that recycles used plastics. The nearby agricultural areas and freshwater fish ponds were polluted with high concentrations of Cu, Ni, and Mn. Water extracts from the contaminated soil retarded root growth of Brassica chinensis (Chinese white cabbage) and Cynodon dactylon (Bermuda grass) where their seeds were obtained commercially. The contaminated populations of C. dactylon, Panicum repen (panic grass), and Imperata cylindrica (wooly grass) were able to withstand higher concentrations of Cu, Ni, and Mn, especially C. dactylon, when compared with their uncontaminated counterparts.

Original languageEnglish
Pages (from-to)81-89
Number of pages9
JournalBiomedical and Environmental Sciences
Issue number1
Publication statusPublished - Mar 1990

Scopus Subject Areas

  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis


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