iStock-Delhi pollution

Photo : iStock


  • High levels of ozone can cause breathing troubles, coughing.
  • Highest ozone concentration was found in the Jawaharlal Nehru Stadium area.

New Delhi: The content of ground-level ozone in Delhi air crossed the safe limit in many parts of the city concerning locals on Monday.

The dry heatwave in the national capital resulted in an unusually high amount of Ozone concentration in the atmosphere, according to data from Delhi Pollution Control Committee (DPCC). The highly reactive gas is particularly dangerous for the elderly and patients with respiratory issues, including asthma.

The Jawaharlal Nehru stadium area was noted to be the worst affected by the presence of pollutants, while Ozone levels in other areas like Dr Karni Singh Shooting Range, Nehru Nagar, Mandir Marg, RK Puram and Narela, also breached the safe levels.

The maximum temperatures in the city had topped 47 degrees last week in some parts of Delhi, resulting in dry weather and subsequently formation of more Ozone in the air.

According to a DPCC data, Ozone’s hourly values touched 251 micrograms pcm (per cubic metre) at JLN stadium during the last week of April around noon, every day, when there is high traffic and the temperature is around the day’s highest.

Ozone is formed by the bonding of three Oxygen atoms banded together, making a heavier molecule than inhalable Oxygen, which is formed by two atoms of Oxygen. It usually happens when there is a prolonged fire or excessive heat causing a shortage of atoms and triggering triple bonding.

Excessive heat causes an increase in the concentration of Ozone and decreases Oxygen in the air, while humidity is against the formation of Ozone.

A layer of the gas is necessary in the upper atmosphere of the Earth to protect us from Sun’s UV rays, however, breathing a high concentration of ozone in the air can cause wheezing, coughing, and chest tightness, especially among children who play outdoors.

Meanwhile, the overall air quality of Delhi also remained ‘poor’ on Monday. The India Meteorological Department said the air quality in the capital city is likely to remain poor over the coming days due to strong winds bringing dust with it, which will remain suspended in the air.

In Delhi, dust is one of the primary sources of pollution during summers.

Source link