Final Report Chapter 9 Environmental and Social Considerations 9.4 Scoping and TOR for Study of Environmental and Social Considerations 9.4.1 Scoping The main work processes and the causal factors of impacts on environmental and social aspects are shown in Table 9.1-1. The possible impacts are classified into categories A, B, C and D and arranged in Table 9.4-1. Table 9.4-1 Scoping of Impacts of Proposed Project on Environmental and Social Aspects Classification Category Impact Items Reason for Classification Construction Operation Pollution 1 Air pollution B- D Construction：Increase of air pollutant from Control construction vehicle and machinery on Measures temporary base. Operation：No working of construction ｖｅｈｉｃｌｅ ａｎｄ machinery 2 Water pollution D D No impact due to no emission of heavy metal and chemical agent and heated water discharge even in construction period 3 Waste B- D Construction：Emission of disposal from packing materials Operation：No disposal 4 Soil pollution D D No impact due to no emission of heavy metal and chemical agent and heated water discharge even in construction period 5 Noise and B- D vibration Ｃｏｎｓｔｒｕｃｔｉｏｎ：Occurrence of noise by construction vehicle and machinery in temporary base Operation：No working of construction ｖｅｈｉｃｌｅ ａｎｄ machinery 6 Ground D D subsidence 7 Offensive odors No water abstraction even in construction stage D D No emission of odors due to no chemical agent and combustion working 8 Bottom sediment D D No impact due to no emission of heavy metal and chemical agent and heated water discharge even in construction period Natural 9 Protected areas D D Environment No protected area within objective area of the project 10 Ecosystem D D 9-13 No areas required protection of ecosystem