ABSTRACT
Aerosol Optical Depth (AOD) is a measure of aerosols that are small solid and liquid particles suspended in the atmosphere. Dust from wind, sea salts, volcanic ash, smoke from forest fires, and pollution from factories are all examples of aerosols. Depending on its size, type, and location, the aerosol can either cool or heat the surface. The high concentrations of droplets when inhaled lead to infection of the upper respiratory system, damage to people's health, and this is related to the spread of the Coronavirus. Optical depth data for aerosols AOD (496, 550, 675, 865, 1248) nm and Particulate matter (PM1, PM10. PM2.5) of different concentrations were taken from the European Centre for Medium-Range Weather Forecasts (ECMWF) for 2019 and 2020. The impact of COVID-19 on human health was studied by changing of Aerosols index and Particulate matter, and the relationship between them by comparing 2019, and 2020, while the results concluded that aerosols are less valuable in 2020 compared to last year, and the reason is due to the low percentage of pollutants. Such as carbon monoxide and nitrogen oxide, which are considered dangerous pollutants and affect human health, and it was observed in this study that the northern regions are almost devoid of aerosols and particles, as they are present at low rates for the year 2020 compared to in 2019, the central and southern regions recorded the largest An increase in cases, due to the variation in the proportions of aerosols and particles that help the spread of the Coronavirus (COVID-19).