Browsing by Author "Hossain, Md. Zabed"

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An analytical assessment of GPL kit for field level detection of arsenic in water
(BRAC Research and Evaluation Division (RED), 1999-07) Hossain, Md. Zabed
An attempt was taken to evaluate the suitability of GPL kit for field level detection of arsenic in water. The sources of variation in results of tests for arsenic determined by GPL kit seemed to be use of different sets of apparatus, reagents and person to person handling of the apparatus. Variation in results of tests due to use of different sets of the GPL kit was more prominent (Standard deviation 76.524) than that of the reagents used and person to person handling (Standard deviation 40). Among the three sources of variation person to person handling of the kits bad the least effect on the test results. Results given by GPL and NIPSOM kits did not differ qualitatively although differed quantitatively.
BRAC/DPHE/UNICEF collaboration on community-based Arsenic response
(BRAC Research and Evaluation Division (RED), 1999) Jakariya, Md.; Haque, Salma R.; Nickson, Ross T.; Hossain, Md. Zabed; Chowdhury, AMR
The severity of the problem of arsenic in ground water in Bangladesh is now well recognized. 97% of the population relics on ground water for drinking and cooking purposes and it is estimated that half of the country may have arsenic in the subsurface. The source of the arsenic is geological and due to the sedimentary processes which lead to accumulation of arsenic and release to groundwater the level found in tubewell water are spatially variable-one well may be highly contaminated whereas nearby another is not The severity of arsenic poising, or arsenicosis, also varies dependent on the length of exposure, the level of arsenic being ingested and the socio-economic (or nutritional) status of the individual concern. BRAC, a non-governmental organisation, in conjunction with DPHE and UNICEF have begun efforts to assess and mitigate the arsenic problem in two thanas of Bangladesh - Sonargaon and Jhikorgacha. Testing has so far been carried out in one union, Boiderbazar union of Sonargaon Thana. 61 % wells of this union were contaminated with arsenic above the Bangladesb standard of 0.05 mgIl. Instantiation and assessment of safe water options has begun. The options being advocated are: treatment of ground water with home based candle filters, treatment of surface water with Pond Sand Filter (PSF), Rain Water Harvesting (RWH). These options are being assessed on several criteria: initial and operating costs; ease of implementation, operation and maintenance; continuity of supply; susceptibility of bacteriological contamination and acceptability to the community. AD of these options have their limitations and none are as easy as obtaining tubewell water directly, however, at present home based filter are proving most popular due to low cost, ease of use and acceptability. Continued manufacturing quality of these home based filter must be ensured and the lifetime of the candle assessed.
Combating a deadly menace: early experiences with a community-based arsenic mitigation project in Bangladesh
(BRAC Research and Evaluation Division (RED), 2000-08) Chowdhury, AMR; Hossain, Md. Zabed; Nickson, Ross; Rahman, Mizanur; Jakariya, Md.; Sharnimuddin, Md.
Bangladesh is facing the problem of arsenic poisoning in drinking water. Around 27% of the tubewells, which supply drinking water to most of the population, have arsenic concentrations above the government of Bangladesh limit of 50 t.g per litre. This means that a quarter of the • country's population is exposed to arsenic poisoning which is alarming and unprecedented in history. BRAC, a non-governmental organisation, in conjunction with the Department of Public Health Engineering (DPHE) of the government of Bangladesh and UNICEF, has implemented a project titled, 'Action Research into Community-Based Arsenic Mitigation' in two upazilas of Bangladesh - from June 1999 to June 2000. The aim of the project was to assess the technical viability as well as the effectiveness of different alternative safe water options and to figure out the community acceptance of such options. The activities included the determination of the extent of arsenic contamination in water of all the tubewells of the project area; involvement of community members in choosing, implementing and maintaining alternative sources for safe drinking water, determination of the viability and effectiveness of different mitigation option and assess their relative acceptance by villagers; identification of arsenic-affected patients and providing treatment; and make the community people aware of arsenic poisoning. This report presents the experiences of the initial course of project implementation.
Effectiveness of field methods for detecting Arsenic between 0 and 100 ppb in Bangladesh ground water
(BRAC Research and Evaluation Division (RED), 1999-11) Nickson, Ross T.; Hossain, Md. Zabed; Jakariya, Md.; Khandakar, Nadim; Chowdhury, AMR
Interim report community based arsenic mitigation program: successes and constraints June - October 1999
(BRAC Research and Evaluation Division (RED), 1999) Jakariya, Md.; Haque, Salma R.; Hossain, Md. Zabed; Nickson, Ross T.; Chowdhury, AMR
The severity of the problem of arsenic in ground water in Bangladesh is now well recognized. 97% of the population relies on ground water for drinking and cooking purposes and it is estimated that one third of the country may arsenic in the subsurface. This amount to many millions of people potentially at risk. The source of the arsenic is geological and due to the sedimentary processes which lead to accumulation of arsenic and release to groundwater the level found in tubewell water are spatially variable-one wen may be highly contaminated whereas nearby another is not The severity of arsenic poising. or arsenicosis, also varies dependent on the length of exposure, the level of arsenic being ingested and the socio-economic status of the individual concern. BRAC, a non-governmental organisation, in conjunction with DPHE/UNICEF have begun efforts to assess and mitigate the arsenic problem in two thanas of Bangladesh - Sonargaon and Jhikorgacha. Testing has SO far been carried out in two unions- Boiderbazar union of Sonargaon Thana and Godkhali union of Jhikorgacha Thana - 61% and 35% of these wells respectively were contaminated with arsenic above the Bangladesh standard of 0.05 mL Installation and assessment of safe water options has begun. The options being advocated are: treatment of ground water with home based candle filters, treatment of surface water with Pond Sand Filter (PSF) : connection of Rain Water Harvesters (RWH) and use of shallow groundwater through Dug wells. These options are being assessed on several criteria: initial and running costs; ease of implementation and maintenance; continuity of supply; susceptibility of bacteriological contamination and acceptability to the community. All of these options haw their limitations and none are as easy as obtaining tubewell water directly, however, at present home based filter are proving most popular due to low cost, ease of use and acceptability. Continued manufacturing quality of these home based filter must be ensured and the lifetime of the candle assessed.
Mosquito Repellent Fabric: Development and Characterization of Peppermint and Garlic Mixture Finish on Knitted Fabric To Examine Mosquito Repellency
(Elsevier, 2023-05-03) Al Parvez, Abdullah; Hossain, Md. Jakir; Hossain, Md. Zabed; Sohan, Mohammad Sazzad Hossain; Hoque, Fariha; Ahsan, Md. Habibul; Hoque, Md. Saiful
Mosquito-repellent textiles are a part of protective textiles which help in protection from the species that are prone to cause diseases like malaria and dengue fever. This study explored the possibility of natural extract (alcoholic) from peppermint leaves, stems, and garlic cloves to use as a mosquito-repellent finish material on knit fabric. Accordingly, different concentration (5%, 15%, 25%, and 35%) of PGE (Peppermint Garlic Extract) solution was prepared and applied to the developed fabric using an exhaust dyeing process to assess the mosquito (Aedes Aegypti L.) repellency performance. Following WHO (World Health Organization) standard (cone bioassay) and a self-modified cage technique from literature survey, mosquito protection and repellency tests have been performed for characterization. The findings revealed that the PGE-treated fabric samples C (25% PGE) and D (35% PGE) had the highest mosquito mortality (50.00% and 76.67%, respectively) and repellency (78.6% and 85.6%, respectively) rates. Moreover, this study evaluated the prepared PGE formulations’ shelf-life performance and colorfastness properties of PGE-treated fabrics, including the impact of washing cycles on the treated fabrics. There was no fungal growth, and the fabric showed excellent colorfastness properties. However, the efficacy of treated fabrics decreased with an increasing number of washes.