proposed integrated complex for delhi judicial academy

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Rapid Environmental Impact Assessment (REIA) Study for Proposed Integrated Complex for Delhi Judicial Academy, National Law School, and National Institute for Mediation & Conciliation at Dwarka, New Delhi The DG sets will be run on HSD with a maximum sulphur content of 1.0 %. It is proposed to install individual stacks of adequate height to exhaust the DG emissions. The stacks of adequate height will be provided from above the roof of the building as per the norms. Since heavy fuel will be used, very small quantity of Particulate matter, SO 2 , NOx and CO will be generated during the combustion process. Also, during the operation phase of the project, the impacts on air quality due to vehicular emissions in the complex will be very less as the complex will not result in generation of any large volume of traffic. Considering the nature of activities which the proposed project will result, low level of vehicles movement within the complex, and low threshold values, air pollution is not expected to be a major concern. It is for these reasons that the ambient air quality predictions using models have not been carried out. 5.3 Impacts on Ambient Noise Environment 5.3.1 Impacts During Construction Construction activities normally result in temporary and short duration increases in noise levels. The main sources of noise during construction period include movement of vehicles for loading and unloading of construction materials, fabrication, handling of equipment and materials, operation of power shovels, concrete mixing plants, generators etc. The areas affected are those close to the site. The noise level due to operation of various construction equipments are given in Figure 5.1 Under the worst case scenario, considered for prediction of noise levels during construction phase, it has been assumed that all these equipments generate noise from a common point at an average noise level of 85 dB (A). The increase in noise levels due to operation of various construction equipments are given in Table 5.1. 100
Rapid Environmental Impact Assessment (REIA) Study for Proposed Integrated Complex for Delhi Judicial Academy, National Law School, and National Institute for Mediation & Conciliation at Dwarka, New Delhi Table 5.1 Increase in noise levels due to operation of various construction equipments DISTANCE (M) MONITORED DAY-TIME AMBIENT NOISE LEVELS AT PROJECT INCREASE IN NOISE LEVEL DUE TO CONSTRUCTION ACTIVITIES DB(A) NOISE LEVEL DUE TO CONSTRUCTION ACTIVITIES DB(A) INCREASE IN AMBIENT NOISE LEVEL DUE TO CONSTRUCTION ACTIVITIES DB(A) SITE DB(A) 15 50 85 85 35 50 50 80 80 30 100 50 75 75 25 200 50 70 70 20 500 50 62 62 12 1000 50 56 56 6 1500 50 52 52 2 2000 50 50 50 - 101
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