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The symptoms tend to increase in severity with the time people spend in the building, and improve over time or even disappear hvac supervisor resume pdf people are away from the building. The main identifying observation is an increased incidence of complaints of symptoms such as headache, eye, nose, and throat irritation, fatigue, and dizziness and nausea.

These symptoms appear to be linked to time spent in a building, though no specific illness or cause can be identified. SBS is also used interchangeably with “building-related symptoms”, which orients the name of the condition around patients rather than a “sick” building. However, there have been inconsistent findings on whether air conditioning systems result in SBS or not. Exposure to poor lighting conditions has led to general malaise.

Several sick occupants may report individual symptoms which do not appear to be connected. The key to discovery is the increased incidence of illnesses in general with onset or exacerbation within a fairly close time frame—usually within a period of weeks. In most cases, SBS symptoms will be relieved soon after the occupants leave the particular room or zone. In some cases—particularly in sensitive individuals—there can be long-term health effects. Many volatile organic compounds, which are considered chemical contaminants, can cause acute effects on the occupants of a building. Bacteria, molds, pollen, and viruses are types of biological contaminants” and can all cause SBS. In addition, pollution from outdoors, such as motor vehicle exhaust, can contribute to SBS.