Toxicity Evaluation Of MSW Leachate Using
Oncorhynchus Mykiss And Gambusia Affinis
Acute Toxicity Tests In Kermanshah,
Western Iran
Author(s)
M. Sharifi, L. Heydarian, A. Roshani,
F. Yavari & S. Dezfoulinezhad
Abstract
Various physical, chemical and biological characteristics of Kermanshah
municipal solid-waste leachate including COD, BOD, EC, pH, T, TSS, TDS,
NO3
--N and PO4
-3-P were determined. Laboratory analysis revealed that samples
collected in November-January when precipitation is on its peak are highly
polluted with very high TSS (9398.8 mg L-1), BOD (2630 mg L-1) and COD
(6240 mg L-1), NO3
--N (4100 mg L-1), PO4
-3-P (62.4 mg L-1). The toxicity of
leachate produced at the Kermanshah municipal solid waste dump was
determined using the 96-h acute toxicity test with Oncorhynchus mykiss and
Gambusia Affinis. Result of toxicity assay indicates that the leachates were
highly toxic to Oncorhynchus mykiss (LC50=6.07% v/v) and Gambusia affinis
(LC50=12.41% v/v).
Keywords: leachate, toxicity test, Oncorhynchus mykiss, Gambusia affini.
1 Introduction
Leachate created by municipal solid waste is a highly complex mixture of
organic and inorganic compounds [1]. Using acute and chronic toxicity tests with
various animals and plants several studies have shown that leachates produced
by municipal solid wastes are highly toxic [2]. Although unpredictability of
interactions between components of the leachate poses difficulties in the
Keywords
leachate, toxicity test, Oncorhynchus mykiss, Gambusia affini
Related Book
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