The visibility in the national capital has reduced due to the presence of a high level of smog in the air.
Delhi continues to remain engulfed in a blanket of smog on Wednesday with the air quality index in the 'very poor category'. The visibility in the national capital has reduced due to the presence of a high level of smog in the air.
Air Quality Index (AQI) at 402 ('severe' category) in Anand Vihar, as per Central Pollution Control Board (CPCB). 400 in Nehru Nagar, Vazirpur (466), RK Puram (394), Patparganj (369), Dilshad Garden (370), (469) ITO.
The neighbouring cities of Faridabad (355), Noida (390), recorded severe air quality while AQI at Gurugram was (402) recorded very poor air quality.
An AQI between 0-50 is considered good, 51-100 is satisfactory, 101-200 moderate, 201-300 poor, 301-400 very poor and 401-500 is marked as severe/hazardous.
AQI is likely to improve on Thursday to the lower end of 'severe' to higher end of 'very poor' category, owing to a forecasted change in transport level wind direction and marginally better ventilation condition, said SAFAR.
The SAFAR synergized stubble fire counts over Punjab, Haryana, UP, Uttarakhand, and neighbouring areas have marginally reduced since last reported but still significantly high and stood at 2247 on November 10.
Stubble burning share in PM2.5 in Delhi's air is estimated at 22% for today.
What is AQI?
The AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you.
The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. Ground-level ozone and airborne particles are the two pollutants that pose the greatest threat to human health in this country.
How does the AQI work?
Think of the AQI as a yardstick that runs from 0 to 500. The higher the AQI value, the greater the level of air pollution and the greater the health concern. For example, an AQI value of 50 represents good air quality with little potential to affect public health, while an AQI value over 300 represents hazardous air quality.
Why AQI is hazardous to your health?
Even healthy people can experience health impacts from polluted air including respiratory irritation or breathing difficulties during exercise or outdoor activities.
High air pollution levels can cause immediate health problems including:
- Aggravated cardiovascular and respiratory illness
- Added stress to heart and lungs
- Damaged cells in the respiratory system
- Long-term exposure to polluted air can have permanent health effects:
- Accelerated aging of the lungs
- Loss of lung capacity and decreased lung function
- Development of diseases such as asthma, bronchitis, emphysema, and possibly cancer
- Shortened life span
Who is most susceptible to severe health problems from air pollution?
1. Individuals with heart disease, coronary artery disease or congestive heart failure.
2. Individuals with lung diseases such as asthma, emphysema or chronic obstructive pulmonary disease (COPD).
3. Pregnant women.
4. Outdoor workers.
5. Older adults and the elderly.
6. Children under age 14.
7. Athletes who exercise vigorously outdoors
As per health experts, people who are suffering from asthma or other respiratory ailments should prefer working from home.
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