Purpose

It is almost a common practice in Bangladesh to indiscriminately discharge effluent into the nearby wetlands, crop fields and water bodies. So, contamination occurs from water to food chain through soil and field crops. This study therefore assesses the impact of industrial effluent on water, soil and rice production taking Turag river bank as a case study, which located in the most thickly industrialized area of Bangladesh.

Methods

The descriptive and diagnostic research design was used in the present study. Eighty farmers were selected as respondents using proportionate stratified random sampling technique. The data were collected using an interview schedule. Impact of industrial effluent contamination was measured based on the extent of change that occurred in soil and water quality, level of insect infestation and, quantity and quality of rice before and after the establishment of industries. Similarly, water samples were collected to examine water quality parameters. Descriptive statistics such as frequency and percent, mean and standard deviation were used to describe and interpret the data, while paired t-test was used to test significant difference.

Results

The results revealed that the quality of water and soil, and quality and quantity of rice have differed significantly after the establishment of industries. Surface water was mostly affected (t-value 90.25). Almost all of the respondents (97.5%) stated that there was high insect infestation after the establishment of industries which negatively affects rice production. The water quality parameters test revealed that temperature, total dissolved salts, pH and salinity were within the acceptable limits, while electrical conductivity and heavy metals (Cd, Pb and Ni) were above the acceptable limits. The majority of respondents (77.6%) had favourable to highly favourable perception on the negative impact of industrial effluent contamination on rice production. The major problems faced due to the industrial effluent contamination were pollution, low fertility, increase attack of insect, dermal diseases and low yield.

Conclusions

The establishment of industries has quiet negatively altered soil, water and rice production as buttressed by the evidence based viewpoints of the respondents. Proper treatment of industrial effluent and implementation of environmental act would certainly help overcome the problem.

中文翻译：

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孟加拉国工业废水对水、土壤和水稻生产的影响：以图拉格河岸为例

目的

在孟加拉国，不分青红皂白地将污水排放到附近的湿地、农田和水体中几乎是一种普遍的做法。因此，污染通过土壤和大田作物从水到食物链发生。因此，本研究以位于孟加拉国工业化程度最高的 Turag 河岸为例，评估了工业废水对水、土壤和水稻生产的影响。

方法

本研究采用描述性和诊断性研究设计。使用按比例分层随机抽样技术选择了 80 名农民作为受访者。使用采访时间表收集数据。工业废水污染的影响是根据工业建立前后土壤和水质的变化程度、虫害程度以及稻米的数量和质量来衡量的。同样，收集水样以检查水质参数。使用频率和百分比、均值和标准差等描述性统计数据来描述和解释数据，而配对 t 检验用于检验显着性差异。

结果

结果表明，建厂后水土质量、稻米质量和数量存在显着差异。地表水受到的影响最大（t 值 90.25）。几乎所有的受访者（97.5%）都表示，工业建立后虫害严重，对水稻生产产生了负面影响。水质参数测试表明，温度、总溶解盐、pH 和盐度在可接受的范围内，而电导率和重金属（Cd、Pb 和 Ni）在可接受的范围内。大多数受访者（77.6%）对工业废水污染对稻米生产的负面影响持正面或高度正面的看法。工业废水污染面临的主要问题是污染、

结论

正如受访者基于证据的观点所支持的那样，工业的建立已经悄悄地对土壤、水和稻米的生产产生了负面影响。妥善处理工业废水和实施环保法肯定有助于克服这个问题。