Analysis of Questionnaires Surveys and Overviews On the Gaps of Past Research Causing Plant Disease and People Health Hazards in the Sundarbans
American Journal of Life Sciences
Volume 2, Issue 3, June 2014, Pages: 155-163
Received: May 20, 2014; Accepted: Jun. 6, 2014; Published: Jun. 20, 2014
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Author
Awal, Mohd Abdul, Environmental Scientist (Ministry of Environment & Forest), and Founder & Chief Advisor, Health & Pollution Research Farm, Bangladesh, 23-09-37 Avenue, Apt, No: 1, Long Island City, New York, USA
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Abstract
Coastal belts render energy & operative support to people and natural resources (Awal, M.A.2007). But the Sundarbans is being contaminated by various environmental factors such as heavy metal contaminations in soil and water as well as people health (Awal, M.A. 2014). So, a questionnaire survey was conducted among different groups of people inside and outside of Sundarbans to explore local perceptions as to the possible causes of disease of plants in Sundarbans (Awal, M.A.2009). This confirmed the increase in top-dying prevalence. Despite various hypotheses as to the causes of this top-dying, the underlying causes are still not well understood. The present work has explored some of the possible factors involved, focussing particularly on the relationship among the amount of top-dying in different places and the human destruction of Sundarbans ecosystem as well as abnormal concentrations of a number of chemical elements present in the soil, in order to test the hypothesis that ecological pollution, along with chemical pollution might be responsible. Of the hypotheses previously put forward to explain top-dying, the present results do not support enhanced salinity as the cause. It is likely that several of the above-mentioned environmental factors interact with each other to induce top dying in Sundri (Awal, M.A. 2004). However, the present results have showed that Sn, Exchangeable K, soil pH, Pb, Zn and Ni could be directly linked with top-dying disease of Heritiera fomes (Sundri) in Sundarbans, probably particularly by weakening the vigour of the trees and people and allowing other factors such as pathological agents to attack the plants and surrounding people in Sundarbans, Bangladesh (Awal, 2014).
Keywords
Environmental-Factors, Environmental Pollution, Heritiera Fomes, Mangrove, Sundarbans, Status of Human Health Hazards in Sundarbans, Top-Dying, Site Quality, Disease of Plants & Surrounding People
To cite this article
Awal, Mohd Abdul, Analysis of Questionnaires Surveys and Overviews On the Gaps of Past Research Causing Plant Disease and People Health Hazards in the Sundarbans, American Journal of Life Sciences. Vol. 2, No. 3, 2014, pp. 155-163. doi: 10.11648/j.ajls.20140203.15
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