new delhi the energy and resources institute teri plans to conduct a costbenefit analysis of the different measures required to combat pollution in the ncrthese measures suggested as a part of the report of a sourceapportionment study will be carried out by teri and automotive research association of india to derive sectorial contributions to air pollution in ncr in august 2018the sourceapportionment study suggested remedial measures such as enhanced lpg penetration to reduce biomass burning use of agriculture residue in power plants to prevent crop burning and coal usage and the stringent pollution standards for industries among otherswe will be doing a costbenefit analysis of the different measures suggested as part of the report we have a clear roadmap on what needs to be done but how feasible are these measures in terms of cost is a question that needs to be answered sumit sharma associate director earth science and climate change division teri told toiaccording to sharma along with the shortterm measures that are already in place there needs to be a push towards longterms measures the graded response action plan is in place since 2017 the plan was prepared on the directive of the supreme court after high pollution levels were recorded in the ncr in 2016 so every time the air gets fouler measures are undertaken now longterm plans also need to be looked at he saidfor example the study pointed out that fugitive dust emissions from road construction and demolition cd activities have contributed to around 515 in pm25 and pm10 concentrations in 2016 in 2030 the share of this sector will increase to 821 for the two pollutants emission reduction potential of controls such as vacuum cleaning of roads walltowall paving and use of barrier and water to control dust from construction and demolition cd activities are assessed vacuum cleaning of road and walltowall paving are assumed to have a reduction of 50 in silt content and 12 and 7 reduction in total pm10 and pm25 emissions of ncr respectively it saysthe study also pointed out that control of dust from construction and demolition activities with the help of barriers and water sprinkling may reduce the total pm10 and pm25 emissions in ncr by 2 and 1 respectivelydata for the study was derived from 10 days of air quality monitoring in nine stations in delhi four in up and seven in haryana in winter and summer of 201617according to the finding for pm25 concentration during winters the average share of transport sector in delhi varied from 28 industries contributed to 30 while biomass burning in residences and agricultural fields contributed to 14 dust soil road and construction had a share of 17during summer the share of the transport sector is about 17 in delhi while industries contributed 22 biomass burning in residences and agricultural fields contributed to 15 dust soil road and construction had a share of 38 in summers other sources contribute to 11 in winters and 8 in summer season the study found