Children’s IQ Drops Due to Air Pollution in India, New Study Finds – Air Purifiers Could Help

Children in areas of India with high pollution have significantly lower IQs compared to their peers in cleaner environments. Pollution not only damages the lungs but also affects brain development. A recent study found that children aged 6-8 living in polluted areas scored on average about 20 points lower on IQ tests, which could impact their school performance and future opportunities.

In areas with heavy pollution, 6-8 year-old children scored lower on IQ tests. The study found stark differences in IQ between children living in high and low pollution zones. Here are the key findings:

• High pollution areas: Full-scale IQ = 80.33

• Low pollution areas: Full-scale IQ = 98.12

• Difference ≈ 18 points, which could potentially affect academic opportunities.

The study focused on the effects of particulate matter (PM2.5 and PM10) on children's cognitive abilities. PM2.5 and PM10 are fine particulate matter, which are smaller and can easily enter the lungs, potentially leading to more severe health consequences.

Experts Call for Immediate Action to Protect Children’s Futures

The study was conducted by the Kalinga Institute of Industrial Technology (KIIT) in Odisha, India, where children exposed to higher levels of pollution (PM10 > 60 micrograms per cubic meter, PM2.5 > 40 micrograms) were compared with children in cleaner environments. Experts emphasize the need for new strategies to protect children’s futures, as pollution continues to harm their cognitive development and health.

Asthma Attacks Increase in West Africa Due to Pollution

A separate study from West Africa also found that asthma attacks in adolescents are linked to high pollution levels. The study in Cotonou, Benin, tracked 730 asthmatic adolescents over 36 months. Researchers used portable and fixed air quality sensors to measure exposure to pollutants like nitrogen dioxide and PM1, PM2.5, and PM10. They found that asthma symptoms were 2.5 times more frequent during the seasonal harmattan period, which brings dry, dusty air from the Sahara.

Researchers reported that fine particulate air pollution remains alarmingly high in West Africa, which significantly increases asthma risks for adolescents. They suggest that air quality alerts and better education on medication and self-management could improve respiratory health.

Schools Could Benefit from Air Purifiers

Professor Anant Sudarshan from the University of Warwick in the UK has suggested that all public schools, especially in areas with high pollution, should be equipped with air purifiers. “Children spend a significant portion of their day in school, and reducing pollution exposure could have large health benefits,” Sudarshan said.

By installing air purifiers in schools, children's exposure to harmful pollutants could be reduced by about 17% annually. This could potentially enhance their focus and long-term cognitive abilities, as fine particulate matter (PM2.5) affects short-term alertness and cognitive development, much like how constant distractions reduce productivity.

Conclusion: Installing Air Purifiers in Schools Can Protect Cognitive Development

Installing air purifiers in schools could significantly reduce children's exposure to air pollution, thereby protecting their cognitive development. Immediate action is needed to safeguard children’s health and education.

Action Plan for Schools:

• a. Install air purifiers in all public schools

• b. Ensure regular maintenance of air purifiers

• c. Issue air quality alerts

• d. Provide health education on managing pollution exposure

• e. Monitor and assess the impact

Energy Recovery Ventilation Systems Can Further Enhance Air Quality

In addition to air purifiers, schools can benefit from energy recovery ventilation systems (ERVs). These systems, including the best energy recovery ventilators, can improve indoor air quality by efficiently exchanging stale indoor air with fresh outdoor air while recovering energy. ERVs are an energy-efficient solution that also help maintain optimal indoor air conditions, crucial for reducing exposure to pollutants like PM2.5. Implementing these systems, particularly in high-risk areas, could further protect children's cognitive health and academic performance.

For schools and homes, an energy recovery ventilator for home offers a cost-effective solution to ensure continuous airflow and remove harmful particles. The energy recovery Ventilation Unit can be an excellent long-term investment in areas with high air pollution.