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Analysis of the Stringency of Drinking Water Quality Standards of Bangladesh in Comparison to the USA, EU, Japanese, and Indian Standards
2018
Islam, Kamrul | Zahra, Fatima-Tuz- | Chowdhury, Md. Arif | Biswas, Suvo Moy
Water is one of the most crucial substances for life. In order to maintain their public health, each and every country has defined standards of drinking water quality, beyond which the water is considered harmful for human health. The current study compares physical, chemical, and biological standards of drinking water quality for the USA, EU, Japan, India, and Bangladesh, considering 4 physical parameters (namely, color, odor, taste, and turbidity), 35 chemical parameters (such as Calcium (Ca), Magnesium (Mg), Phosphate (PO43-), Sodium (Na), Phenolic compounds, Nitrite (NO2-), Arsenic (As), Aluminum (Al), etc.) and 2 biological parameters (i.e., Coliform (Fecal) and Coliform (Total)). The data has been collected from several secondary sources and since processes of data collection for water quality differ from one another, this aspect has been ignored. No variation has been found in biological water quality standards along with physical quality standards of the considered regions. In order to find out the differences in chemical parameters, standard ANOVA and pair-wise F-test have been conducted. There was no disparity among chemical parameters in ANOVA test. Moreover, thanks to the few excessive values of the standards (as in case of Bangladesh), the COD value is 4 mg/L, whereas in other countries this parameter is much less. However, the chemical parameters of water quality standards in Bangladesh vary significantly from other countries. Besides, there has been no variation among the standards of other countries, even though they are located in different continents. Most interestingly, despite being neighbors, Bangladesh and India differ significantly in this regard.
اظهر المزيد [+] اقل [-]Bioremediation of diesel from a rocky shoreline in an arid tropical climate
2015
Guerin, Turlough F.
A non invasive sampling and remediation strategy was developed and implemented at shoreline contaminated with spilt diesel. To treat the contamination, in a practical, cost-effective, and safe manner (to personnel working on the stockpiles and their ship loading activity), a non-invasive sampling and remediation strategy was designed and implemented since the location and nature of the impacted geology (rock fill) and sediment, precluded conventional ex-situ and any in-situ treatment where drilling is required. A bioremediation process using surfactant, and added N & P and increased aeration, increased the degradation rate allowing the site owner to meet their regulatory obligations. Petroleum hydrocarbons decreased from saturation concentrations to less than detectable amounts at the completion of treatment.
اظهر المزيد [+] اقل [-]Agricultural Policies and Investment Priorities for Managing Natural Resources, Climate Change and Air Pollution
2018
CGIAR Research Program on Wheat
Policy augmented scaling model for a fully validated CSAP-the happy seeder technology to curb air pollution and build resilience.
2017
CGIAR Research Program on Climate Change, Agriculture and Food Security
Innovation made in interest of sustainable development is transformed as scalable practice through business model underpinned by national policy. It has led to continuously improved value to services and product adapted to dynamic climate challenges. Residue burning has sensitized the public-private institutes to collaborate and pool national resources for scaling
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