Contaminants that mostly affect well-being include particulate matter, nitrogen dioxide, sulfur dioxide, and ground-level ozone, which may cause a wide range of both short-term and long-term health problems. Contaminants that mostly affect well-being include particulate matter, nitrogen dioxide, sulfur dioxide, and ground-level ozone, which may cause a wide range of both short-term and long-term health problems. Health and Fitness, Health Tips, Exercises & Workout Tips, Diet & Wellness | Times of India Lifestyle