HEAVY METALS PHYTOACCUMULATION POTENTIAL OF CALOTROPIS PROCERA FOUND WITHIN HADEJIA-NGURU WETLAND Abstract This quantitative survey research aimed to investigate the heavy metal contamination and the potential phytoremediation efficacy of Calotropis procera in the Hadejia-Nguru Wetland. A structured questionnaire was developed to gather data from a sample of 120 respondents, chosen through a convenient sampling technique. […]