Risks of testing for prostate cancer include: 1  a raised PSA level does not always indicate prostate cancer and biopsies will be needed to check if cancer is present. 2  biopsies and treatments for prostate cancer have harmful side-effects that may affect quality of life.
fume (plural fumes) 1  A gas or vapour/vapor that smells strongly or is dangerous to inhale. Fumes are solid particles formed by condensation from the gaseous state, e.g. metal oxides from volatilized metals. 2  A material that has been vaporized from the solid state to the gas state and re-coalesced to the solid state.
Silica fume is a byproduct of producing silicon metal or ferrosilicon alloys. One of the most beneficial uses for silica fume is in concrete. Because of its chemical and physical properties, it is a very reactive pozzolan.Concrete containing silica fume can have very high strength and can be very durable.ne of the most beneficial uses for silica fume is in concrete. Because of its chemical and physical properties, it is a very reactive pozzolan. Concrete containing silica fume can have very high strength and can be very durable.