Comparative Analysis of Pb, Cr, and Cd present in brassica oleracea l. var, acephala from Munyaka Slums and Kesses Markets, Kenya

Kales are listed as one of the major groceries people utilize within the environment. The 
crop is rich in vitamins and other nutrients essential for the growth and development of the body. 
The plant’s leaves are the major part that people consume within the environment. Kales originates 
from the Brassica oleracea L.var, acephala. This project is majorly focused on the 
phytoaccumulation of heavy metals and their ascertained levels in different samples of kales 
obtained from the Munyaka and Kesses regions. The project aims to determine the level of 
pollution in the plants cultivated in different environmental contaminants rates and create 
awareness on the impacts of pollution on food and human beings. Sources of contamination 
include natural sources, anthropogenic sources, mining, and mineral extraction. Most people 
practice urban agriculture, using untreated sewage water to irrigate their crops. Random sampling 
was used such that two samples from spread-apart places will be collected from Munyaka, Eldoret 
and two spread apart sites in Kesses. They have been  subjected to analytical techniques carried 
out at the Moi University Laboratories and prepared through wet digestion. The products of the 
digestion process of all the samples provided were taken to the AAS section to analyze heavy 
metals (Pb, Cr, and Cd) and a readout containing the heavy metals concentration in the instances, 
which will be displayed in the computer and a printout obtained for data analysis. The data was 
analyzed using Microsoft excel to the mean and standard error, which was then subjected to the 
statistical test of significance using paired t-test at 95% confidence interval. The project results are 
meant to educate the general public on the importance of eating safe foods and help them indulge 
in agricultural practices that produce safe foods. It is also important for the government to enact 
laws that facilitate the production of safe foods.