For humans, having a healthy immune system is essential. Our immune system is important because it helps the body fight foreign bacteria, viruses and diseases by attacking it, which is why we must take care of it as much as possible by strengthening it. But this so-called defense system can also cause problems, such as attacking organs or blood from another individual, unless the organs or blood are carefully matched. It can also overreact to harmless invaders such as pollen grains, which can cause hay fever, and even in some cases the immune system can turn against the body's own cells. The immune system uses different types of white blood cells. Some of these cells, called macrophages, constantly patrol the body to destroy any germs as they enter. In the case of an infection, the body will begin to fight back with a very powerful defense made up of T and B cells. These cells give individuals acquired immunity to prevent the same form of germ from making them sick again . Unfortunately, with current environmental problems, people are facing several health problems, especially with the immune system. Air pollution, which constitutes one of the major environmental problems, can cause several health risks. Exposure to air pollutants can have a high chance of having long-term effects on people as well as disabling the immune system. Therefore, air pollution can affect the immune system by weakening it and making it much more vulnerable to foreign invaders, diseases, harmful bacteria and viruses. There are several types of toxins and pollutants in the air, which contribute to serious health problems. environmental problem of air pollution. One of these major toxins is dioxin, a highly toxic compound...... middle of paper ...... where these health situations occur. In conclusion, air pollution affects the immune system, making it weak and vulnerable to certain bacteria, diseases, viruses and foreign invaders. The most affected common illnesses are asthma and allergies. Air pollution in general has been observed to alter the immune system's handling of particular allergens. Exposure to toxins like dioxin can lead to serious health problems. Long-term exposure to this toxin is linked to a weakening of the immune system, as well as the nervous system, the endocrine system and some reproductive functions. Therefore, everyone has a particular level and exposure to dioxins in the body. Improving air quality is the key answer to avoiding any type of disease development, but it is a long-term goal that will require support and commitment at national and global levels...