Pol­lu­tant level at all-time high in Delhi dur­ing morn­ing hours

Oman Daily Observer - - FRONT PAGE -

NEW DELHI: The na­tional cap­i­tal on Thurs­day saw one of the worst surges in the pol­lu­tant con­cen­tra­tion in air dur­ing morn­ing hours, with PM2.5 cross­ing the 700 level in east Delhi’s Anand Vi­har, while recorded as ‘se­vere’ and ‘very poor’ at sev­eral other places.

With stub­ble burn­ing con­tin­u­ing in neigh­bour­ing states of Pun­jab and Haryana, also re­vealed by the satel­lite im­ages of Nasa’s Fire Map­per, the north-west­erly winds com­ing from those states are ef­fect­ing Delhi’s air qual­ity, even as the wind speed is com­par­a­tively low.

“Cur­rently Delhi is re­ceiv­ing mod­er­ate winds com­ing from the di­rec­tion of Pun­jab. The winds are not high now and are around 10 kmph. How­ever, these winds will con­tinue at least till Oc­to­ber 16,” Ma­hesh Palawat, Di­rec­tor pri­vate weather fore­caster at Skymet, said.

Ac­cord­ing to the Delhi Pol­lu­tion Con­trol Com­mit­tee (DPCC) data, the level of PM2.5 or the par­ti­cles in air with di­am­e­ter less than 2.5 mm, touched 772 after 5 am at Anand Vi­har area, while drop­ping to 350 in next hour, still way be­yond the per­mis­si­ble range.

The in­ter­na­tional per­mis­si­ble limit for PM2.5 is 25 mi­cro grammes per cu­bic me­tre while for In­dia, it is 60.

The PM2.5 level at Mandir Marg in cen­tral Delhi os­cil­lated be­tween 135 to 165 in the morn­ing hours, 131 to 205 at Pun­jabi Bagh in west Delhi and 139 to 174 at R K Pu­ram in south Delhi.

The av­er­age PM2.5 level in Delhi till 4.30 pm was 112, showed data recorded by Sys­tem of Air Qual­ity and Weather Fore­cast­ing and Re­search (SAFAR).

PM2.5 is one of the ma­jor and com­mon pol­lu­tants with direct con­se­quences on life ex­pectancy.

Any recorded value be­tween 251350 is con­sid­ered “se­vere” for PM2.5, while value be­tween 121 to 250 units is con­sid­ered “very poor”.

The se­vere value of PM2.5 af­fects healthy peo­ple and se­ri­ously im­pacts those liv­ing with dis­eases.

Ac­cord­ing to SAFAR, Delhi, on Thurs­day till 4.30 pm, four ar­eas — Delhi Univer­sity, Pi­ta­m­pura (both north Delhi), Lodhi Road (cen­tral Delhi) and Mathura Road (south Delhi) — had “very poor” air qual­ity in terms of PM2.5.

In other places in­clud­ing Indira Gandhi In­ter­na­tional Air­port, ad­join­ing Gu­ru­gram (Haryana) and Noida (Ut­tar Pradesh), the air qual­ity was placed un­der “poor” cat­e­gory.


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