Together with the increase in greenhouse gas in the atmosphere, climate changes such as heat, weather conditions and heavy rains cause regional and global variations around the world. In global climate where a heat increase occurs, during the studies performed by especially improved climate models, an approximate heat increase by 2-4.5 oC is predicted between 1990-2100 in the world. Related with this increase, many natural disasters, epidemics and hazardous vectors are expected to increase. Additionally, the exposure state of humans and countries will be different together with feeling the global climate changes differently all over the world. As a result of these, an average of 1.2 million and 60.000 humans lose their lives annually due to urban air pollution and natural disasters respectively. Together with climate changes, those with chronic diseases are mostly affected as a result of air pollution. The most affected group of people during COVID-19 pandemic period have been the chronic patients. During COVID-19 pandemic period, the fact that particle substances in the air act as a carrier tool in transmission of Coronavirus agent is highly crucial in terms of increasing the severity of the disease.