PHYSICOCHEMICAL, HEAVY METALS LEVEL AND BACTERIOLOGICAL QUALITY OF HAND DUG WELLS IN AWKA ANAMBRA STATE NIGERIA

Authors

Amos H. Okereke, Chris O. Anyamene, Uchechukwu G. Nwankwo, Onyekachukwu, I. Udemezue, and Chinenye U, Ezebialu