: Methane is emitted during the production and transport of coal, natural gas, and oil. Methane emissions also result from livestock and other agricultural practices and by the decay of organic waste in municipal solid waste landfills.
Traumatic Brain Injury (TBI) - Levels of Severity. Mild TBI. Loss of consciousness is very brief, usually a few seconds or minutes. Loss of consciousness does not have to occur - the person may be dazed or confused. Testing and scans of the brain may appear normal. Most common: 75%-85% of all brain injuries are mild.
The length of exposure, not the cause. of the injury or the medical condition which results, determines whether an injury is. traumatic or occupational. For instance, if the employee is exposed to toxic fumes for. one day, the incident is considered a traumatic injury. If the employee is exposed to.