Among them Pb, Zn, Hg, Cu, Ni, Se, Fe and Cd are the most common ones. They emit a variety of greenhouse gases and heavy metals during the production of brick. Zn, Cu and S concentrations in soils and plants are then the critical limits in the areas nearby brick kilns. Removal of fertile top soil leaves the land infertile. Unfortunately, brick fields are mostly situated on river line fertile agricultural land as it needs clayish, silt and loamy soil with good texture. Data analyses on the brick fields from different studies reveal that considerable amount of productive and potential agricultural lands has been given to brick fields. It declines unless steps are taken to restore that productivity and check further losses. Productivity of soil declines when land becomes degraded. Land degradation is a reduction of land quality. The net result of a brick kiln is called land degradation. In many developing countries a common method to obtain the clay needed for brick production is by removing the topsoil. Clay bricks, in particular, are widely used as a traditional building material. The raw material for brick is “Top soil” that has the great value for agricultural crop production. It is a growing market in Bangladesh although it has great impacts on the environment. Bricks are used as a raw material in construction of buildings. Brick kilns are the major concern of Bangladesh.
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