Very high levels of AST (more than 10 times normal) are usually due to acute hepatitis, sometimes due to a viral infection. With acute hepatitis, AST levels usually stay high for about 1-2 months but can take as long as 3-6 months to return to normal.
MFMA recommends the relative humidity level for a concrete slab for a non-glue-down maple floor system be 85% or lower and for glue down systems the concrete slab relative humidity level should be 75% or lower before installation.
According to the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE), the ideal humidity range for humans is between 30 to 60 percent relative humidity. The ideal is somewhere around 45-55%. Very high levels of humidity contribute to the growth of mold, funguses, dust mites, and other pests. Mold contributes to a number of diseases and thrives in humid climates, generally above 60 percent humidity.