Lead is a very soft, highly malleable metal that is very resistant to corrosion. In terms of industrial hygiene two categories of lead compounds are considered – firstly, lead and inorganic lead compounds and secondly, organic lead compounds. Lead is widely used in metal products, sheet metal, solders and pigments. It was also widely used as an additive (tetra ethyl lead) in petrol. Other uses of lead include in batteries, pottery glazes and in lead crystal glass. Exposure to lead and inorganic lead compounds usually occurs through inhalation of dust and fume from metal processing, grinding and welding. Lead is readily absorbed through the lungs. Ingestion is also a possible route of entry where poor hygiene standards occur. Once in the body the lead is transported by the red blood cells and stored mainly in the bone marrow where it interferes with haemoglobin production. Organic lead compounds (mainly tetra ethyl lead) are absorbed as a vapour by inhalation and are also readily absorbed through the skin.
The lead surveys are carried out according to the Lead Regulations, 2001. (Occupational Health & Safety Act, Act 85 of 1993)
We offers the following services:
We do HCS surveys taking into consideration: