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The use of local exhaust ventilation systems rather than dilution or natural systems and facility operation in a totally explosion-safe manner are also recommended.Implications : Implications of this research include heightened attention to airborne contaminant monitoring in all waste solvent processing areas and the need for a review of existing safeguards used by some university waste handlers . It only pertains to the rates phone companies charge each other under existing " reciprocal compensation " agreements for the use of local lines . There are some splendid new buildings which , through the use of local materials and traditional constructional detail , speak of their own time and yet fit well into the local scene . websites , such as BBC 's , even exceeds the use of local TV or newspaper sites .