70. Assessment of Zn and Pb in buffaloes fed on forages irrigated with wastewater in Sahiwal, Sargodha, Pakistan

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Muhammad Nadeem Zafar Iqbal Khan, Maria Ghazal, Mubeen Akhter, Pervaiz Akhter, Kafeel Ahmad, Humayun Bashir Ijaz Rasool Noorka Aima Iram Batool Saqib Rehman, Ammara Ainee, Ifrah Khan


This study was designed to find the Pb and Zn concentration in forages, soil and blood samples that were taken from polluted sites. Sampling was performed in two seasons from five sites in tehsil Sahiwal. Atomic Absorption Spectrophotometer (AAS) was used for estimation of metal concentration. The samples at site-V had higher values as compared to other sites.  Zn was found lower in blood while higher in soil and forages while lead had positive and non-significant correlation in soil, forage and blood due to its accumulation in lower concentration. The value for pollution load index was lower than standard value for both metals. Transfer had lower values indicated that antagonistic effect of metals present in soil or the crops are resistant to metals. Daily intake of both metals had lower values. Health risk index values were higher for both metals than the standard value which indicates that both these metals are not good for animals grazing on sampling sites. EF values for both metals were in order of Pb>Zn but lower than standard. The result from present study showed that there is increase in the concentration of metal at sampling sites due to waste water irrigation. 

Keywords: Blood plasma; Enrichment factor; Forage; Lead; Pollution load index; Zinc



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