India, Nov. 28 -- The air quality is getting worse in Delhi-NCR, becoming a growing concern year after year. Toxic air is a major cause of many illnesses and affects more than just lung health. Recent reports show that it can also harm children with heart problems. Each year, as smog increases and air quality declines, children become more vulnerable to its effects. Their developing bodies may be at risk for heart defects. This concern worsens because air pollution can harm their health and make them more sensitive to harmful particles such as PM2.5, nitrogen dioxide, and ozone.

When pollution increases, more young patients have trouble breathing or recovering from illnesses. Children with heart defects, whether they were born with holes...