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HEAVY METAL CONTAMINATION IN VEGETABLES MARKETED IN DELHI

KrishiKosh

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Title HEAVY METAL CONTAMINATION IN VEGETABLES MARKETED IN DELHI
M Sc
 
Creator NISHANT KUMAR
 
Contributor D. K Sharma
 
Subject vegetable market, Heavy metal, heavy metal contamination, Safe Permissible limit
 
Description T-8677
The present study was conducted to assess the heavy metals contamination (Zn, Cu, Fe, Pb, Cd,
Ni and Cr) in 21 different winter (Potato, Brinjal, Radish, Chilli, Tomatoes, Shimla Mirch, Onion,
Garlic, Mustard, Cabbage, Cauliflower, Carrot, Coriander, Fenugreek, French Bean, Seem, Pea,
Bathua, Spinach, Aroids, Beet root) and 7 summer (Sponge gourd, Bitter gourd, Cucumber,
Kundru, Pointed gourd, Okra) vegetables crops from four different market sources (OkhlaMandi,
Inderpuri market, Azadpur and IARI) situated in Delhi. Pb contamination was found only in
tomato and spinach of OkhlaMandi and Inderpuri market samples respectively while remaining
vegetables of both source and all vegetables of Azadpur and IARI were Pb free. Ni was found to
be present in very high concentration and about more than 90% vegetables samples of all the four
sources were highly contaminated with Ni. Seasonal variation revealed that most of the winter
vegetables were contaminated with one or more heavy metals while summer vegetables were only
contaminated with Ni. Families of vegetables showed variation in accumulation of different heavy
metals. Chenopodiaceae had highest mean concentration of Pb (1.54 ppm), Cr (48.50 ppm) and
Ni (27.20 ppm) while umbelifereae had highest mean concentration of Fe (876.97 ppm) and Cu
(24.62 ppm). Mean concentration of Cd, and Zn was highest in crucifereae (6.25 ppm) and
solanceae (36.28 ppm) respectively. Among all the vegetables, mustered leaf showed high
accumulation of most of the heavy metals mainly Zn (46.48 ppm), Fe (1005.08 ppm), Cu (22.23
ppm) and Cd (4.73 ppm)
 
Date 2016-09-08T17:44:39Z
2016-09-08T17:44:39Z
2012
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/76165
 
Format application/pdf
 
Publisher IARI, DIVISION OF ENVIRONMENTAL SCIENCES