Aluminum light ( aluminosis aluminum pneumoconiosis )
Occupational Diseases / / August 12, 2017
aluminum - silver white light metal.Metallic aluminum and its compounds are of great use in industry.Contact
working with aluminum dust or vapors takes place in the manufacture of metallic paints, artificial abrasives pyrotechnic aluminum powder, with the production of aluminum by electrolysis of aluminum casting, etc., the MPC for aluminum and its alloys -.. 2 mg / m3.
aluminum enters the body by inhalation of its dust and fumes.Time of "aluminum light" ranges between 6 months and many years.When exposed
aluminum dust in significant concentrations can occur in the lungs changes within the first year of operation, apparently as a result of allergic reactions of the body (serous inflammation).
Complaints of frequent exposure to colds, bouts of cough with phlegm or without tightness and "stitches" in the chest, fatigue, shortness of breath growing, on the part of the digestive tract disorders, lack of appetite and abdominal pain.With the progression of the disease there is a noticeable sh
Objective clinical data initially mild.Breathing mostly rigid, tapped dry wheezing.With the development of the process is almost always observed cyanosis, first only scheduled later pronounced.Tidal volume is often reduced vital capacity is reduced, sometimes up to 1000 ml or less.Despite significant violations of respiratory function, radiographic changes at this stage can not be identified.In cases where the process progresses, are respiratory irritation;there are cases where chronic bronchitis - the only manifestation of the disease.
in blood are sometimes observed lymphocytosis and eosinophilia in the normal total number of white blood cells.
for "aluminum light" is characterized by rapid progression, the frequent discrepancy between objective clinical data and radiographic changes, as well as a frequent complication of spontaneous pneumothorax.
On radiographs first changes are detected in the form of enhanced reticulation basic structure of the lung, especially the middle parts.Sometimes it is possible to discern individual, not typical, small and medium-sized speckled education.Changes are arranged symmetrically and bilaterally.Pulmonary apex in most cases free.When the merger occurs progressive forms spotty blackouts to form stripes or homogeneous seal.Roots in severe cases of lung expanded and condensed.Of particular note is unique, whimsical mediastinal shift, due to violation of the lung tissue elasticity.Unlike silicosis with "aluminum light" is often no nodules.
Kick typically accumulated in the lungs of aluminum dust shall continue after the termination of her in terms of production, so that once started the process inevitably progresses.
similar clinical, pathological and histological changes observed in workers commas in the melting corundum (mineral, extending the manufacture of abrasive wheels, at 95-99% is made up of aluminum oxide).