Research of filter materials for dust fractioning

A special place in air pollution with dust emissions is occupied by the production of building materials, using large quantities dispersed mineral substances as aggregates. The article devoted to study hazardous fractions emission when assessing dustiness working area for concrete and reinforced products, since specific location operation equipment complex characterized uneven formation space time. This reduces efficiency aspiration systems. Based on analysis methods means dustiness, use gravimetric method justified, however, assess content most dangerous particles human body a size 2.5 10 microns, separation required. Non-woven synthetic filter materials various thick-nesses densities are investigated. It proposed carry out sampling blocks three filters from different materials. studies were carried help specially made portable complex. effective determined microscopic analysis. conducted calibration blower performance an assessment measurement accuracy showed relatively small errors sampling, which confirms feasibility blocks.