Acute toxicity tests on raw leachate from a Malaysian dumping site

Fatihah Suja`, Arij Yusof, Md Anuar Osman

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Leachate samples collected from the Ampar Tenang open dumping site at Dengkil, Malaysia, were analyzed for acute toxicity. Two in vivo toxicity tests, Acute Oral Toxicity (AOT) and Primary Skin Irritation (PSI), were performed using Sprague Dawley rats and New Zealand Albino rabbits, respectively. The leachate samples were also analyzed chemically for nitrate and phosphate, ammonia-nitrogen, Kjeldahl-nitrogen and Chemical Oxygen Demand (COD). Results from both the AOT and PSI tests showed that the leachate did not contribute to acute toxicity. The AOT test yielded a negative result: no effect was observed in at least half of the rat population. The PSI test on rabbits produced effects only at a leachate concentration of 100%. However, the skin irritation was minor, and the test returned a negative result. The four chemical tests showed high levels of nutrient pollution in the leachate. The nitrate and phosphate concentrations were 2.1 mg/L and 23.6 mg/L, respectively. Further, the ammonia-nitrogen concentration was 1,000 mg NH3-N/L the Kjeldahl-nitrogen level was 446 mg NH3-N/L, and the Chemical Oxygen Demand was 1,300 mg/L. The in vivo toxicity and chemical analyses showed that the leachate is polluted but not acutely toxic to organisms.

Original languageEnglish
Pages (from-to)389-396
Number of pages8
JournalWater Science and Technology
Volume61
Issue number2
DOIs
Publication statusPublished - 2010

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toxicity test
leachate
Toxicity
toxicity
skin
Skin
Nitrogen
nitrogen
Chemical oxygen demand
chemical oxygen demand
ammonia
Rats
phosphate
Ammonia
Nitrates
Phosphates
nitrate
dumping
Nutrients
Pollution

Keywords

  • Acute oral toxicity
  • In vivo toxicity
  • Landfill leachate
  • Primary skin irritation test

ASJC Scopus subject areas

  • Environmental Engineering
  • Water Science and Technology

Cite this

Acute toxicity tests on raw leachate from a Malaysian dumping site. / Suja`, Fatihah; Yusof, Arij; Osman, Md Anuar.

In: Water Science and Technology, Vol. 61, No. 2, 2010, p. 389-396.

Research output: Contribution to journalArticle

Suja`, Fatihah ; Yusof, Arij ; Osman, Md Anuar. / Acute toxicity tests on raw leachate from a Malaysian dumping site. In: Water Science and Technology. 2010 ; Vol. 61, No. 2. pp. 389-396.
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