PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 particles in the atmosphere, also known as particulate matter that can enter the lungs. The diameter is equivalent to 1/20 of the thickness of human hair. The main sources of PM2.5 are power generation, industrial production, steam, etc. Residues from combustion during the process. Because these particles are too light to land on the ground naturally, they are suspended in the air for a long time and can directly enter the lungs through the breath and even integrate into the blood. PM2.5 has a small diameter and is in the atmosphere The residence time is long and the transportation distance is long. It contains sulfur dioxide, nitrogen oxides, ammonium sulfate and other harmful substances, so it has a great impact on human health and the quality of the atmospheric environment. According to the above text, what is incorrect in the following list? ['As long as the residues released by various combustion are controlled, PM2.5 can be effectively reduced.', 'PM2.5 can be suspended in the air for a long time.', 'As long as PM2.5 can land on the ground, it can avoid its damage.', 'PM2.5 will directly bring harmful substances such as sulfur dioxide into the human body and affect health.']