Show The Danger of Dust DustA A report to the American i Chemical cal society states that silicosis an I Illness due to breathing dust is more widespread than was as hitherto bellev I ed cd Silicosis is caused by hy silica a white crystallIne substance composed of o oxygen and silicon the two t 0 most a abundant elements in the earths earth's crust They eIn al are e believed either cither to e In the lung or to form a colloid a sub substance tance of consistent consIstency y whIch floats in the lung tissue flUIds The resulting irritation Cl creates eates scar r tIssue and once established sIlIcoSIS IS permanent The disease is usually usual y progressIve and frequently fl ates in the dreaded tuberculosis prevalent alent Silicosis of cour course e is most pre preval al- al al ent eat amon among industrial workers worker sucha such as a s drIllers Buthis and muckers mockers in subways But Bu t thIs menace to our health faced to is t ta to toa toa o a lesser degI degree ee by all of us when hen w we e travel over dusty roads and roads es and silica IS i s especIally plentiful in sand of which many roads are partly composed This is just one more reason for fo r pushing the good loads roads movement Eliminating the dust and dirt by e eten een en inexpensIvely bound top surface we e have always known adds much to com coin comfort fort and we no now no learn it is an aid to health |