Potable Water Purification Costs of Urban People: A Cross-Income Group Analysis in Greater Mirpur, Dhaka

Abstract

This research examines the economic implications of water purification in urban areas of Dhaka, where foul odors and potential pathogens, have led many residents to use various water purification methods. The study aims to investigate the additional costs incurred by households for water purification and how these costs vary across income groups. Data was collected from households of different thanas in the Greater Mirpur area through structured and semi-structured questionnaires. The findings show that although 89% of households rely on water delivered by the Water Supply and Sewerage Authority (WASA), only 28% have access to clean water. Water purifiers, especially manual ones, are popular choices for water purification. The average monthly cost of water purification was found to be 331 BDT, with considerable variation based on income. Unilever was the most popular brand of water purifier, although a significant proportion of respondents selected their purifier randomly. The study highlights the urgent need for improved water quality management and treatment, particularly for low-income residents, and the importance of raising awareness about different water purification brands and their efficacy. While the research gives helpful information into the water purification practices of city’s households, certain limitations, such as its limited geographic scope and sample size, should be considered. Nevertheless, this research provides a foundation for understanding the economic challenges of water purification and encourages further research into these pressing issues.