Developement of decision making methods on health hazard zoning releted to geogenic pollutant (emphasis on arsenic)- Case study: Bardsir using by Spatial Multi Criteria Evaluation model (SMCE)
Plotting composed zoning of potentially arsenic pollution map based on FAHP model and SMCE approach and investigation of arseniv concentration in water, soil and human tissue for studying how arsenic pollution transferred to top of food chain is purpose of this study for helping to make the best decision in preventing the health of men and environment and accessing to sustainable development.With respect to adjective, position of sampling points of environmental resources determined based on expert judgment and random method. Water, soil, sediment and hair human sampling was collected and As, Cd, Pb and Sb were analyzed by ICP-MS.On the other hand, questionare was prepared for plotting composed pollution map and doing FAHP model and was gave to experts. Finally 10 criteria was selected as effective factors to natural arsenic pollution and was evaluated. The overall results indicated that water, soil and sediment polluted to arsenic and antimony in some areas. The pollution maps were showed low pollution in the study area except east and central parts to output of basin in the north. Experts believed effective natural criteria in arsenic pollution are with respect to mine, land use, water resources, vegetation, flood zones, channel networking, geology, soil texture, slope and land type. On the basis of zoning map, area is classified in 5% very high pollution, 25% high pollution, 10% moderate pollution, 25% low pollution and 35% very low pollution.
Determining the effect of geogenic factors on the arsenic environmental pollution
composed zoning map