August 2011

Solid waste management system of Narayanganj city: An environmental study

Improper management of solid waste is one of the main causes of environmental pollution and degradation in many cities. Many cities lack solid waste regulations and proper disposal facilities. The present paper attempts to understand the poor disposal and handling of waste that leads to environmental degradation, destruction of the ecosystem and poses great risks to public health in Narayanganj City of Bangladesh. The...

Author(s): Asib Ahmed and Shahnaz Huq-Hussain

August 2011

Uptake of potentially toxic metals by vegetable plants grown on contaminated soil and their potential bioavailability using sequential extraction

In order to estimate plant available fraction of metals in three soils, three vegetable samples: Amaranthus viridis, Celosea argentea and Corchorus olitorius were grown on contaminated soils. Matured plants were harvested and analyzed for their metal concentration. The soil samples were collected before and after planting, acid digested and analyzed to determine the pseudo total metal concentration,...

Author(s): Olayinka K. O., Oyeyiola A. O., Odujebe F. O. and Oboh B.

August 2011

Sensitivity of vegetation to decadal variations in temperature and rainfall over Northern Nigeria

The objective of this paper is to examine the extent vegetation has responded to decadal variations in temperature and rainfall over Northern Nigeria. The study covers four decades viz. the 1970s, 1980s, 1990s and the 2000s. Meteorological data from 11 stations covering 34 years (1971 to 2004) and satellite imageries of four dates, 1972, 1980, 1990 and 2000 taken during the wet season were analyzed in this work. Results...

Author(s): G. N. Chima, M. A. Ijioma, M. O. Nwagbara and V. O. Nwaugo

August 2011

Effects of farm yard manure on cadmium and lead accumulation in Amaranth (Amaranthus oleracea L.)

Two pot experiments were carried out to study the effect of farm yard manure (FYM) on Cd and Pb accumulation by Amaranth. Six levels of FYM (0, 2.5, 5, 10, 15 and 20 t ha-1) were applied to Cd and Pb treated soil separately in the pot experiments. The weight of the shoot and root of Amaranth significantly increased following the application of FYM to both Cd and Pb treated soil. The application of FYM in soil...

Author(s): M. Alamgir, M. G. Kibria and M. Islam