No SDES-2019-9
Title Salinity and water-related disease risk in coastal Bangladesh
Author Asma Khatun Mst and Koji Kotani
Abstract An increase in surface and ground-water salinity due to climate change is reported to have become a great threat to the health of coastal inhabitants in Bangladesh. However, little is known about how much such salinity affects the risk of water-related diseases and how such risk can be mitigated in the field. This research examines the association between water-related diseases and coastal salinity along with sociodemographic and anthropometric factors. We conduct questionnaire surveys with 527 households: 273 subjects from the non-salinity and 254 subjects from the salinity rural coastal areas of Bangladesh. The logistic regression analysis demonstrates that the probability of suffering from water-borne, water-washed and water-related diseases are 8%, 14% and 11% higher in the salinity areas than in the non-salinity areas, respectively. However, it is identified that people who consume rainwater as a drinking source and/or belong to “normal body mass index” have less chances of being affected by water-related diseases even in the salinity areas than those who drink ground/pond water and/or belong to “underweight body mass index.”Overall, the results suggest that the long-term reservation of rainwater and addressing communitybased food security & nutrition programs shall be effective countermeasures to reduce the risk of health problems in the coastal population and to sustain their lives even under the threat of land salinity.
Revised version published in EcoHealth