Isn’t quite clear whether pollution is down in Delhi

The variations recorded by different air monitoring agencies during the odd-even period leaves Delhi perplexed

GN Bureau | April 20, 2016


#odd-even scheme   #pollution   #Gopal Rai   #Arvind Kejriwal   #odd-even  
Odd-even
Odd-even

The odd-even vehicle rationing scheme was started by the Delhi government on April 15 to clean up the air in Delhi which is considered the most polluted city in the world. The Delhi government was forced to take the road rationing measure for the first time in January as pollution levels touched alarming levels.

While most citizens agreed that the scheme helped bring down vehicular congestion in the first phase, its success in reducing pollution levels is still being debated. Incidentally, the city’s pollution control authority’s findings are at variance with those of other air monitoring agencies.

Reportedly, according to the Delhi Pollution Control Committee (DPCC), PM 2.5 levels were within the permissible limit of 60 micrograms per cubic metre of air (µg/m3) at 42 of 74 locations in the city on April 16. This, it said, was an improvement over the days preceding the scheme.

According to DPCC’s website, the PM 2.5 average between 8 am and 8 pm on Monday for three locations-Mandir Marg, Punjabi Bagh and RK Puram-was as low as 55 to 60 micrograms per cubic metre (g/m³) compared to 90-100g/m³ on April 15.

These findings, however, were at odds with The Energy and Resources Institute TERI’s claims that many places across the city witnessed an over-threefold increase in PM 2.5 levels on April 16 as compared to days before the scheme was implemented. It shows that while PM 2.5 levels at Anand Vihar stood above 160µg/m3 on that day (as compared to 55 on April 12) it was above 150µg/m3 at Punjabi Bagh (an almost four-fold jump from 41 on the earlier date).

Also for TERI, in Delhi and NCR, PM2.5 and PM10 concentrations violated the prescribed standards at many places, while NO2 levels are within the limits. 

The Ministry of Earth Sciences’ System of Air Quality and Weather Forecasting and Research (SAFAR), on the other hand on its website shows support to DPCC’s claims – stating that air pollution levels had undergone a steady decrease between Friday and Sunday. It remained constant on Monday and witnessed an increase on Tuesday.

Ozone levels in the atmosphere according to SAFAR were the lowest on Sunday as compared to the beginning of the month. It increased sharply on Monday but continued to remain in the safe zone. It however crossed the safe limit on Tuesday.

The picture may well become clearer by the time the scheme ends on April 30.
 

Comments

 

Other News

Maharshtra braces to face Cyclone Nisarga

 Even as Mumbai fights challenges posed by COVID-19 on multiple fronts and as the  coronavirus cases continue to rise daily, the city now faces a double whammy with the cyclone ‘Nisarga’ slated to make the landfall in Maharashtra Wednesday. A state-wide alert has been issued for Mumba

Harnessing the demographic capital: how effective are skilling programmes?

Probing data concerning increased job creation and the decline in unemployment has been holding the attention of economists and been subject of discussions in several think tanks in the preceding months. The NITI Aayog reports that 3.53 million new jobs were created between September 2017 and February 2018

It`s time to Unlock now, with economic focus

With Lockdown 4 ending Sunday, the home ministry has issued new guidelines to fight COVID-19 and for phased re-opening of areas outside the Containment Zones. The guidelines, issued based on extensive consultations held with states and UTs, will be effective from June 1 till June 30. The first phase of reo

Small kitchen gardens turn saviours for Gujarat tribal families

When the whole world is fighting COVID-19, food and nutrition security has become a major issue. The pandemic has aggravated the existing food crisis in India, especially in rural and tribal regions. There has been less availability of fresh foods in most parts of the country, and the tribal community has

India will set example of post-Covid-19 economic revival: Modi

India is determined to “set an example” for the rest of the word in the post-pandemic economic revival, prime minister Narendra Modi has said, underling the need to become self-reliant. “There is also a widespread debate on how the economies of various countries, including

3,543 ‘Shramik Special’ trains transport 48 lakh people in 26 days

Close to 48 lakh migrant labourers have been able to reach home from the cities they were working in, as the Indian Railways have run a total of 3,543 “Sharmik Special” trains from May 1. Following the home ministry order regarding the movement by special trains of migrant worker



Archives

Current Issue

Opinion

Facebook    Twitter    Google Plus    Linkedin    Subscribe Newsletter

Twitter