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Air Pollution

Hyperlocal Emissions Behind Spike In Pollution In Delhi On Dussehra

Hyperlocal Emissions Behind Spike In Pollution In Delhi On Dussehra

New Delhi: Delhi’s air quality turned poor on Dussehra, though the early warning system of the Indian Institute of Tropical Meteorology had predicted moderate to satisfactory air quality in the capital. IITM officials said that they did not record any substantial changes in parameters like temperature, wind speed and emissions from farm fires on October 5 and “hyperlocal emissions” could have impacted the air quality. The possible sources of these emissions could be the large number of effigies burnt on the occasion of Dussehra and during a political protest, they said.

With the air quality in Delhi dropping to the ‘poor’ category on Wednesday (October 5), authorities in the National Capital Region (NCR) have been asked to strictly implement measures under “Stage 1” of the Graded Response Action Plan (GRAP) which include penal and legal action against polluting industrial units.

Also Read: National Clean Air Programme: Centre Aims At 40 Per Cent Reduction In Particulate Matter By 2026

The Centre’s sub-committee on GRAP noted in a meeting that there has been a “sudden dip” in air quality parameters in the region which pushed Delhi’s Air Quality Index (AQI) into the ‘poor’ category.

“While this is likely due to a localised influence and the forecasts do not predict any further deterioration, in an effort to maintain the AQI in the moderate category, as a precautionary measure, the sub-committee decided that all actions as envisaged under Stage I of the GRAP – ‘Poor’ air quality (AQI 201-300) be implemented in right earnest by all the agencies concerned with immediate effect in the NCR,” the Commission for Air Quality Management (CAQM) said in an order.

The GRAP has four different stages of adverse air quality: Stage I – ‘Poor’ (AQI 201-300), Stage II – ‘Very Poor’ (AQI 301-400), Stage III – ‘Severe’ (AQI 401-450) and Stage IV – ‘Severe Plus’ (AQI >450).

Under Stage 1, the Centre’s CAQM recommends stopping construction and demolition activities at sites having a plot size equal to or bigger than 500 sqm that are not registered on the web portal of the respective states for remote monitoring of air pollution levels.

Delhi’s 24-hour average AQI stood at 211 (poor category) at 4 pm on Wednesday, worsening from 150 at 4 pm on Tuesday. It was 248 in Ghaziabad, 196 in Faridabad, 234 in Greater Noida, 238 in Gurugram and 215 in Noida on Wednesday.

The air quality in the national capital improved to the ‘satisfactory’ category (AQI 79) on Thursday (October 6) owing to favourable wind direction and speed.

According to the IITM’s Early Air Quality Warning System for Delhi, the air quality is likely to remain largely in the ‘satisfactory’ category over the next six days.

Also Read: Delhi’s Air Quality Turns ‘Poor’, CAQM Asks States To Strictly Enforce Pollution Control Measures

(This story has not been edited by NDTV staff and is published from a syndicated feed.)

NDTV – Dettol have been working towards a clean and healthy India since 2014 via the Banega Swachh India initiative, which is helmed by Campaign Ambassador Amitabh Bachchan. The campaign aims to highlight the inter-dependency of humans and the environment, and of humans on one another with the focus on One Health, One Planet, One Future – Leaving No One Behind. It stresses on the need to take care of, and consider, everyone’s health in India – especially vulnerable communities – the LGBTQ population, indigenous people, India’s different tribes, ethnic and linguistic minorities, people with disabilities, migrants, geographically remote populations, gender and sexual minorities. In wake of the current COVID-19 pandemic, the need for WASH (Water, Sanitation and Hygiene) is reaffirmed as handwashing is one of the ways to prevent Coronavirus infection and other diseases. The campaign will continue to raise awareness on the same along with focussing on the importance of nutrition and healthcare for women and children, fight malnutrition, mental wellbeing, self care, science and health, adolescent health & gender awareness. Along with the health of people, the campaign has realised the need to also take care of the health of the eco-system. Our environment is fragile due to human activity, which is not only over-exploiting available resources, but also generating immense pollution as a result of using and extracting those resources. The imbalance has also led to immense biodiversity loss that has caused one of the biggest threats to human survival – climate change. It has now been described as a “code red for humanity.” The campaign will continue to cover issues like air pollution, waste management, plastic ban, manual scavenging and sanitation workers and menstrual hygiene. Banega Swasth India will also be taking forward the dream of Swasth Bharat, the campaign feels that only a Swachh or clean India where toilets are used and open defecation free (ODF) status achieved as part of the Swachh Bharat Abhiyan launched by Prime Minister Narendra Modi in 2014, can eradicate diseases like diahorrea and the country can become a Swasth or healthy India.


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