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Environment is a surrounding atmosphere or condition for existence. Some environment are cleaner than others and that is a healthy environment, sadly some places are not. This is cause by pollution and littering.
One of the major pollutants which affect the environment is water pollution. A great number scientific paper deal with water pollution and changes driving from it. They speak for the fact that the “sewage- question” has become a central problem of humanity.
The expression “water pollution” seems to be clear to all. Nevertheless, it is worth determining its real meaning as this has charged in the course of time. Felfoldy’s (1972) precise definition is the following: “Water pollution is every impact which changes the quality of our surface and subsoil water to such a degree that is suitability either for human consumption or for the support of man’s natural life processes will decrease or cease”.
As such the tobacco industry which comprises of people and companies engaged in the growth, preparation for sale, advertisement and distribution of tobacco and tobacco related products waste discharge can add to the pollution to the environment.
The tobacco plant roots absorb essential element (Cr, Fe, Zn, As, Cd, Al, Mn and others) from the soil and diffused them up to the leaves. (Hosseini and Amirabdi Nucl. Meth. Phys Res. B190/11O/(1996). (Curtis and Rabl, 1996).the tobacco industry in Zaria discharged different pollutants in to the environment, but here we are limiting our work on the impact of the liquid waste discharged in to the environment from the company. During the preparation some of these elements contained in the tobacco leaves are being washed away together with the disposed liquid waste, from the industry in to the environment.
This liquid wastes pass through different drainages in to the Kubani Kabama and Galma rivers which form the major sources of water supply to Zaria township. It is suspected that over the years, the quantity of water from the river had gradually deteriorated as a result of domestic and industrial discharged in to a river leading to increase incidence of water related diseases (e.g typhoid) in Zaria.
The availability of nuclear research facilities, (NNRR-1)in CERT offers unique possibilities for the determination of the elements contain in the liquid waste discharged from tobacco to the environment.
1.2 The nature of the environmental impact assessment
The team “environmental assessment” describes a technique and process by which information about environmental effect of a project is collected both developer and from the sources and taken into account by the planning authority in forming their judgements on whether the development should go ahead.
1.3 ENVERONMENTAL IMPACT ASSESSMENT (EIA)
In essence, EIA is a process, a systematic process that examines the environmental consequences of development actions in advance. The emphasis, compared with many other mechanisms for environmental protection, is on prevention. The processes involve the following steps which are describes below:
· Project screening narrow the application of environmental impact assessment to those projects that may have significant environmental impact. Screening may be partly determined by the EIA regulation operating in a country at the time of the assessment.
· Scoping seek to identify at an early stage, from all off a projects possibly impacts and from the entire alternative that could be addressed, those that are crucial significant issues.
· The description of the project or development action includes a clarification of the purpose and the rationale of the projects and understanding of its various characteristics include stage of development, location and processes.
· The description of the environmental baseline includes the establishment of both the present and future state of the environment, in the absence of the project, taking in to account change resulting from natural events and from other human activities.
· The prediction of impacts aims to identify the magnitude and other dimensions of identified change in the environment with a project/action, by comparison with the situation without the project/action’
· The evaluation and assessment of significance assesses the relative significance of the predicted impact to allow a focus on the adverse impacts.
· Mitigation involves the introduction of measures to avoid, reduce, remedy or compensate for any significant adverse impact.
1.4 THE PURPOSES OF ENVIRONMENTAL IMPACT ASSESSMENT
· An aid to decision- making.
Environmental impact assessment is a process with several important purposes. For the decision- maker, for example a local authority, it provides a systematic examination of the environmental implications of a proposed action, and some time alternatives before a decision is taken. The Environmental Impact Assessment can be considered by the decision-maker along with other documentation related to the planned activity.
· An aid to the formulation of development action.
Many developers no doubt see EIA as another set of hurdles to jump before they can proceed with their various activities in the permission process. It can be an aid to the formulation of development actions, indicating areas where a project can be modified to minimize or eliminate altogether its adverse impact on the environment.
1.5 AIMS AND OBJECTIVES OF THE RESEACH.
This research work intends to
· Check if the purification plant that is supposed to be in this industry prevents the disposing of these toxic elements in to the environment by providing a treatment to capture the unwanted substances.
· To compare the result to be obtained with that of drinking water quality standard use in Nigeria.
Pollution contributes to illness of dwellers in this environment and entire people at large. In this case the wastes which converge on the river affect aquatic animals which people consumed. Famers around that area use the river which the discharge enters for irrigation during dry season. From investigation the people in this environment suffered from many diseases e.g. lung related problems, typhoid e.t.c
1.4 STATEMENT OF RESEACH PROBLEM.
Irradiation of liquid waste from the industry using INAA technique would provide result of the analysis of the waste and hence provide types and concentrations of the hazardous element that may be contained in the discharged liquid sample.
The result to be obtained may also help us to know some causes of illness the dwellers in that environment suffered from.
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