air pollution and nutrition

Air pollution is the fourth leading cause of premature death after hypertension, smoking and malnutrition and is the second leading cause of death from non-communicable diseases after smoking (1-3).increased air pollution can increase the vulnerability of the respiratory system, and poor air quality is a serious risk for acute and chronic respiratory diseases and cardiovascular disease. also exposure to air pollution causes underlying diseases such as high blood pressure, diabetes, cardiovascular and respiratory diseases, and as a result these underlying diseases increase the vulnerability to coronavirus disease 2019 (4).people with the underlying disease and living in contaminated areas are at higher risk for coronary heart disease, and studies show that air pollution is a contributing factor to diseases such as the flu and covid-19. airborne particles increase coronavirus disease 2019 mortality by up to 6%, ozone up to 7% and nitrogen dioxide up to 15%. when different dust particles increase in the air and the virus spreads in the air; for example, the virus has more chance to spread to other people when talking, coughing and sneezing(5).