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Air Pollution: Delhi’s Overall Air Quality ‘Very Poor’, Artificial Rain May Be Induced

The air quality in the national capital showed no signs of improvement as authorities consider inducing artificial rain to combat the air pollution


New Delhi: Delhi’s overall air quality was in the ‘very poor’ category on Tuesday while in some areas of the city it was ‘severe’, with authorities saying they might induce artificial rain by cloud seeding to wash away pollutants in the air, although no exact date has been set for it. Authorities said the ‘very poor’ air quality was due to low wind speed, which is unfavourable for dispersion of pollutants.

According to the Central Pollution Control Board (CPCB) data, the overall air quality in the city was recorded at 372, which falls in the ‘very poor’ category. Ashok Vihar, Anand Vihar, Bawana, Mundaka, Rohini, Sonia Vihar and Wazirpur, all recorded ‘severe’ air quality while 21 areas recorded ‘very poor’ air quality, it said.

At 396, the overall air quality of Ghaziabad was the worst in the National Capital Region (NCR), just points below severe category. Gurugram, Faridabad, Noida and Greater Noida too recorded ‘very poor’ overall air quality.

On Tuesday, the Particulate Matter (PM) 2.5 (particles in the air with a diameter of less than 2.5 micrometres) level was recorded at 220, while the PM10 level was recorded at 369, the CPCB data said.

Also Read: Delhi’s Air Quality Was Most Deadly In 2016 In Two Decades, Reduced Life Expectancy By 10 Years: Study

According to the Centre-run System of Air Quality and Weather Forecasting (SAFAR), air quality in the national capital is expected to remain in the ‘very poor’ category for the next two to three days.

At present, the wind speed is unfavourable for dispersion but it may increase slightly to favour dispersion. Humidity is still high which is unfavourable. Fire counts from stubble burning declined and will have marginal impact, the SAFAR said in a report.

In the wake of rising air pollution in the city, authorities might induce artificial rain by cloud seeding to wash away the pollutants, although no exact date has been set for it. Cloud seeding for artificial rain would be done once the meteorological conditions are stable, a senior official said.

He said the plan is to induce rainfall this week, but if the meteorological conditions are not found suitable then it would be done next week.

Also ReadIKEA Plans To Convert Rice Straw Into Home Products To Tackle Air Pollution From Stubble Burning In Delhi-NCR

However, a senior environment ministry official said, “No exact date has been set for this. This is a possible solution. We will give more details about it.” A senior official said seeing the meteorological conditions there is no possibility of inducing artificial rain. “Even for artificial rain, we need clouds and currently the meteorological conditions are not favourable for inducing an artificial rain,” he said.

The official also said the method of artificial rain is used only in ‘severe plus’ emergency situation.

Cloud seeding is the process of combining different kinds of chemical agents, including silver iodide, dry ice and even table salt, in clouds to thicken them and increase the chance of rainfall.

In 2016, the government tried to explore the possibility of cloud seeding for artificial rain but the plan never worked out.

Also Read: Wearable Sensors To Reveal Actual Impact Of Air Pollution On Health Of Children And Pregnant Women

Meanwhile, concerned about poor air quality in Delhi, a group of college students have come together to monitor the air quality index daily in several locations in the city, including in schools, hospitals, markets, bus stops and government buildings.

By this, they hope to raise awareness among people about the health hazards posed by pollution.

It is an attempt to mobilize the community in the fight to improve air quality, a statement said.

The drive is a joint initiative of Help Delhi Breathe, Haiyya, a grassroots mobilization organization, and Ambee, a company working on air quality data and analytics.

NDTV – Dettol Banega Swachh India campaign lends support to the Government of India’s Swachh Bharat Mission (SBM). Helmed by Campaign Ambassador Amitabh Bachchan, the campaign aims to spread awareness about hygiene and sanitation, the importance of building toilets and making India open defecation free (ODF) by October 2019, a target set by Prime Minister Narendra Modi, when he launched Swachh Bharat Abhiyan in 2014. Over the years, the campaign has widened its scope to cover issues like air pollutionwaste managementplastic banmanual scavenging and menstrual hygiene. The campaign has also focused extensively on marine pollutionclean Ganga Project and rejuvenation of Yamuna, two of India’s major river bodies.

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