| dc.description | Water plays an important role to maintain human lives as well as soil physical
and chemical properties. Ground water is the main source of water for drinking
and irrigation uses and other purposes. On the other hand, soil is the main
enterprises for crop production and their quality. Pollution of ground water and
surface water is a growing cause for concern in Bangladesh. During the recent
years due to the excess use of various types of chemical substances, soil and
water quality decreased. Before using water for any purposes, water quality
assessment should be made on the basis of chemical, physical criteria. The role
of irrigation water is directly related to the economic development of many
developing countries like Bangladesh. In some part of Bangladesh, during dry
season most of the rivers and canals become almost dry. Moreover, in some
areas there are neither canal nor river therefore the only option left with the
farmers in ground water. | en_US |
| dc.description.abstract | A study was conducted to assess the pollution from the soil and groundwater
collected from eight upazilla of Dinajpur district in Bangladesh. From
different locations, 50 water samples and 50 soil samples were collected for
chemical analyses. The standard parameters were pH, EC, TDS, HT, Ca, Mg,
Fe, Mn, Cu, Cl, As, HCO, CO3,SO4 and NO3. The pH indicated that the
water was all most neutral to slightly alkaline. Grading based on B and SSP
reflected that all waters were good to excellent classes. TDS and SAR
categorized the water as excellent. Water samples were moderately hard to
hard class. All waters were free from RSC and belongs to the suitable
category. EC and SAR revealed that water samples were medium salinity and
low alkalinity nature and was expressed as C2S1. Other micronutrients like
Fe, Zn, Mn and Cu were within the safe limit for irrigating all types of
agricultural crops. According to drinking standard, some of the waters were
detected due to higher concentration of Fe and Mn ions. Other pollutant likes
As, Cl, Cu, Zn and SO, were within the safe limit. Most of the water samples
are unsuitable for livestock due to higher concentration of Cl, Mn and
hardness than recommended limit but the concentration of B, Cu and Zn ions
were within the safe limit. The soil of the Dinajpur district was slightly
acidic. The increasing tendency of EC in soil of the study area might lead to
soil salinity problem in future. | en_US |
