Teri plans cost-ben­e­fit anal­y­sis of pol­lu­tion fight

The Times of India (New Delhi edition) - - TIMES CITY - Ri­[email protected] times­group.com

New Delhi: The En­ergy and Re­sources In­sti­tute (Teri) plans to con­duct a cost-ben­e­fit anal­y­sis of the dif­fer­ent mea­sures re­quired to com­bat pol­lu­tion in the NCR.

These mea­sures, sug­gested as a part of the re­port of a source-ap­por­tion­ment study, will be car­ried out by Teri and Au­to­mo­tive Re­search As­so­ci­a­tion of In­dia to de­rive sec­to­rial con­tri­bu­tions to air pol­lu­tion in NCR in Au­gust 2018.

The source-ap­por­tion­ment 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 oth­ers.

“We will be do­ing a cost-ben­e­fit 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 TOI.

Ac­cord­ing to Sharma, along with the short-term 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 fo- ➤ Com­plete phase-out of biomass use in NCR by en­hanced LPG pen­e­tra­tion in ru­ral house­holds

➤ Use of agri­cul­tural residues in power plants and other in­dus­tries to re­place high ash coal and open burn­ing in fields

➤ In­tro­duc­tion of gaseous fu­els and en­force­ment of new and strin­gent SO2/ NOx/PM2.5 stan­dards for in­dus­tries us­ing solid fu­els

➤ Fleet mod­erni­sa­tion uler, mea­sures are un­der­taken. Now, long-term plans also need to be looked at,” he said.

For ex­am­ple, the study pointed out that fugi­tive dust emis­sions from road, con­struc­tion and de­mo­li­tion (C&D) ac­tiv­i­ties have con­trib­uted to around 5%-15% in PM2.5 and PM10 con­cen­tra­tions in 2016. “In 2030, the share of this sec­tor will in­crease to 8-21% for the two pol­lu­tants. Emis­sion re- ➤ Retrofit­ment pro­grammes with con­trol de­vices

➤ En­hanced pen­e­tra­tion of elec­tric and hy­brid ve­hi­cles

Strict im­ple­men­ta­tion of BS-VI norms

➤ Vac­uum clean­ing, wallto-wall paving of roads duc­tion po­ten­tial of con­trols, such as vac­uum clean­ing of roads, wall-to-wall paving and use of bar­rier and wa­ter to con­trol dust from con­struc­tion and de­mo­li­tion (C&D) ac­tiv­i­ties are as­sessed. Vac­uum clean­ing of road and wallto-wall paving are as­sumed to have a re­duc­tion of 50% in silt con­tent and 12% and 7% re­duc­tion in to­tal PM10 and PM2.5 emis­sions of NCR, re­spec­tively,” it says. ➤ Con­trol of dust from con­struc­tion ac­tiv­i­ties us­ing en­clo­sures, fog­ging ma­chines and bar­ri­ers

➤ Elim­i­na­tion of DG set usage by pro­vi­sion of 24x7 elec­tric­ity and con­trol by in­no­va­tive tailpipe con­trol tech­nolo­gies

The 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 PM2.5 emis­sions in NCR by 2% and 1%, re­spec­tively.

Data 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 2016-17.

Ac­cord­ing to the find­ing, for PM2.5 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 17%.

Dur­ing 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 out.

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