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Municipal solid waste landfill leachate induced cytotoxicity in root tips of Vicia faba: Environmental risk posed by non-engineered landfill

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Title Municipal solid waste landfill leachate induced cytotoxicity in root tips of Vicia faba: Environmental risk posed by non-engineered landfill
 
Creator Gupta, Anshu
Gaharwar, Usha Singh
Verma, Akanksha
Rajamani, Paulraj
 
Subject Apoptosis
Hazardous
Landfill leachate
Solid waste
Toxicity
Transmission Electron Microscopy (TEM)
Vicia faba
 
Description 1113-1125
Landfills are considered the main option for dumping of municipal solid waste (MSW) all over the world, but these landfills
are mostly non-engineered. The decomposition of solid waste in the landfill and rainwater penetration into the decomposing
waste produces leachate that contains dissolved organic and inorganic compounds, heavy metals, suspended particles and
hazardous substances. Leachate migration in the environment may pose serious health risks to organisms exposed. Hence, the
present study explored the cytotoxic potential of landfill leachate collected in different seasons from the Okhla landfill site,
Delhi, India. Cytotoxicity of leachate samples was evaluated by cell apoptosis and ultrastructural observations based on
Transmission Electron Microscopic (TEM) observations of the cells of root tips of Vicia faba seedlings treated with the
leachates collected in summer, winter and monsoon in a time and dose dependent manner. Leachate collected in all the three
seasons induced apoptosis in cells of root tips of Vicia faba that increased in a time and dose dependent manner when compared
to control. The apoptosis was highest in the samples treated with leachate collected in the summer season, followed by winter
and monsoon. It was further confirmed with TEM images that there was induction of apoptotic-like morphological changes in
the root cells treated with landfill leachate when compared with the control. The present study indicates that municipal solid
waste leachate is very toxic and it should be treated before disposing it to the environment. This study may be useful for the
assessment of hazardous and toxic effects of pollutants from solid waste landfill sites.
 
Date 2022-11-07T08:23:52Z
2022-11-07T08:23:52Z
2022-11
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/60802
https://doi.org/10.56042/ijbb.v59i11.66982
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJBB Vol.59(11) [November 2022]