Biomaterial Database

A comparative study of cadmium, lead, zinc, pH, and bulk density from the Enyigba lead and zinc mine in two different seasons. 1995

C Chukwuma

Department of Limnology and Environmental Protection, Faculty of Agriculture and Forestry, University of Helsinki, Finland.

Soil pH and bulk density, as well as the concentrations of cadmium (Cd), lead (Pb), and zinc (Zn) in soils and these metal levels in the leaves of cassava (Manihot esculenta) and rice (Oryza sativa), both collected, respectively, in the dry season (December) of 1991 and the rainy season (September) of 1992 from the Enyigba lead and zinc mine, Nigeria, were investigated. Interspecific variations in trace element levels in the plant leaves were detected and may reflect the predilection of these plants to particular elements rather than their variability being due to different climatic conditions, such as precipitation, or other environmental factors.

UI	MeSH Term	Description	Entries
D007854	Lead	A soft, grayish metal with poisonous salts; atomic number 82, atomic weight 207.2, symbol Pb.
D008670	Metals	Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed)	Metal
D008906	Mining	The process of extracting mineral deposits from the earth.
D009549	Nigeria	A republic in western Africa, south of NIGER between BENIN and CAMEROON. Its capital is Abuja.	Federal Republic of Nigeria
D011891	Rain	Water particles that fall from the ATMOSPHERE.	Rains
D002104	Cadmium	An element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.
D002365	Manihot	A plant genus of the family EUPHORBIACEAE that is perennial with conspicuous, almost palmate leaves like those of RICINUS but more deeply parted into five to nine lobes. It is a source of a starch after removal of the cyanogenic glucosides. The common name of Arrowroot is also used with Maranta (MARANTACEAE). The common name of yuca is also used for YUCCA.	Arrowroot, Brazilian,Brazilian Arrowroot,Cassava,Kasaba,Manioc,Tapioca,Manihot esculenta,Arrowroots, Brazilian,Brazilian Arrowroots,Cassavas,Kasabas,Manihot esculentas,Manihots,Maniocs,Tapiocas,esculenta, Manihot
D006863	Hydrogen-Ion Concentration	The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH	pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D012275	Oryza	A genus of grass family (Poaceae) that include several rice species.	Oryza sativa,Rice,Rices
D012621	Seasons	Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)	Seasonal Variation,Season,Seasonal Variations,Variation, Seasonal,Variations, Seasonal