Biological aerosol spread in the air is divided into 2 major sources that affect the exterior of buildings: 1. natural and human activities, such as 2. ventilation systems, agriculture and waste disposal areas.
Biological particles are spread in the air as two major sources. That affect the atmosphere outside the building 1. naturally. And 2. to human activities such as farming systems, ventilation and waste disposal facilities.
Biological aerosol spread in the air is divided into 2 big source. Affecting the atmosphere outside the building is 1 naturally and 2. Human activities such as air ventilation system, agriculture and area get rid of wastes. And so on.