<p>As the national capital witnesses no significant improvement in the air quality, the people of Delhi and adjoining areas are complaining of severe health issues. </p>.<p>The quantity of dust particles suspended in the air is higher than the World Health Organization's (WHO) safety guidelines; most hospitals in Delhi-NCR are reporting patients from all age groups with lung-related issues. </p>.<p>According to experts, people with no past history of respiratory troubles are also developing lung-related problems due to air pollution, are citing distress, breathlessness, shortness of breath, tiredness, weakness, headache and all these symptoms.<br /> </p>