B P International

This study investigates the concentration of Heavy Metals in soil sample from 15 different locations in Garki area of Federal Capital Territory (F.C.T) Abuja, Nigeria. The soil PH of the sample sites varies on the average from 6.44 to 7.24 in water indicating only a slightly acidic to neural. The level of Cu, Cd, Pb, Ni, Mn, and Zn were determined using flame atomic absorption spectrophotometer. The results obtained indicated that these metals on dry weight basis in the soil ranged between (36.60525.0 µg/g) Pb, (15.00-74.40 µg/g) Cu, (17.50-29.80 µg/g) Zn, (0.7-2.20 µg/g) Cd, (16.16-24.60 µg/g) Ni, and (270-558.0 µg/g) Mn. From the results, areas with high traffic density seem to be relatively high in concentration of tested metals than those from less traffic density. A significant correlation was found between traffic density and metal concentrations. Generally, the concentrations obtained were much higher than the tolerable limit for safe environment as prescribed by National Envir...

Soil is one of the most unique construction material by having no exact stress-strain relationship to express by constant equations. This distinctive property of soil makes it difficult to predict the behavior according to different types of stresses. Author(s) Details Sami Gören Umm Al-Qura University, Saudi Arabia. View Books: http://bp.bookpi.org/index.php/bpi/catalog/book/147

Introduction: In many parts of the world, Coffea grows between latitude 25°N and 25°S and requires specific climatic conditions to produce high bean yield and quality. In Uganda, Robusta coffee is grown in a diversity of soils that range from red sandy clay or gravelly loam to soft laterite. Macro-elements such as K, Ca and Na though detectable through EDXRF are not as heavy as trace elements such as Fe, Zn, Cu, Mn, a factor that makes the micro-elements more amenable to EDXRF measurement. The EDXRF spectrometer instrument has a semi-conductor detector that measures the entire energy spectrum when placed closer to the sample to minimize loss of energy by the fluorescent X-ray. Aim: Robusta coffee growing countries of the world such as Uganda, have experienced a decline in market prices since 2002 due to changed consumer preferences for other beverages. In Uganda, where Robusta coffee is the major income earner, one practical way of ensuring that coffee prices remain compet...

The Caatinga biome is a unique Brazilian biome predominant in the Northeast of Brazil and situated in the Semiarid Region. The rhizosphere comprises the narrow zone of soil that is directly influenced by the roots of plants and associated soil microorganisms. It is a dynamic environment with maximum microbial activity due to the presence of root exudates and radicular secretions representing the major carbon  source  readily  available  to  microorganisms.  The  typical  rhizospheric  community  in  the Caatinga  biome comprises  microorganisms  with  different  types  of  metabolism  and  adaptive responses to changes depending on soil temperature, plant species, nutritional status, age, stress, illness, and  other  factors.  Assays for a  variety  of  soil enzymes  give an indication of the functional diversity assumed by the microbes present. A use...