Heavy Metals contents in Neem Tree (Azadirachta indica) Parts and Surroundings

GIS Mapping, Biomonitoring and Distribution of Heavy Metal Concentrations Using Neem (<i>Azadirachta indica</i>) Bark in Makurdi Town, Benue State, Nigeria

“…The results obtained was lower than 0.05 -1.18 mg/kg reported by (Yaghous et al, 2013) for studies of biomonitoring of airborne metals using tree leaves. However, the result was in a close range to 0.32 mg/kg reported by (Fosu-Mensah et al, 2017) and 4.52 mg/kg reported by (Ideisan & Zohuir, 2019). The presence of As at site NB1 may be attributed to moderate human/anthropogenic activities over the years.…”

“…Similarly, the results were lower than 0.50 -37.00 mg/kg reported by Bankole et al (2018) for neem tree barks along major roads in Ibadan, Nigeria. However, the results were higher than that investigated by Abdulateef et al, (2014) which is 0.029 mg/kg and 0.11 mg/kg as reported by Ideisan & Zohuir (2019). The high levels of Cd may be as a result of prevailing human activities.…”

“…Cr 3+ and Cr 6+ form through natural processes and human activities (Ogundele et al, 2015). The results obtained for Cr in neem tree bark was higher than 0.028 mg/kg reported by (Abdulateef et al, 2014), 0.22 -0.38 mg/kg reported by (Erakhrumen & Inaede, 2018) and 0.81 mg/kg reported by Ideisan & Zohuir (2019).…”