Who is the most at risk amid Delhi's worsening air quality? Medanta’s Dr Arvind Kumar gives more details. Delhi's winter smog is often treated as a seasonal inconvenience, bringing watery eyes, persistent coughing and difficulty breathing during morning commutes. However, air pollution is much more than a visibility problem. Every breath can carry microscopic pollutants deep into the respiratory system, triggering inflammation and potentially affecting other organs, including the heart.