Chemicals, by their very nature, are hazardous substances, so it's a good idea to treat them with caution. When used appropriately, they don't pose a threat; nevertheless, it's a responsible choice to ensure that employees who work with them are not at risk.
“Clients often ask us what the requirements are,” says operations manager, Thinus Ferreira. “We recommend that technical staff be sent periodically to an industrial doctor who can perform the necessary tests to check levels of copper, chrome and arsenic. It should be noted that certain external factors may elevate the levels: for instance, arsenic levels can be influenced by exposure to organic arsenic, via the ingestion of seafood. So staff are advised not to eat seafood prior to being tested.”
The staff at Dolphin Bay are tested on a six-monthly basis; once a year they have one full physical examination, and in addition, they also have a urine test. Regular health monitoring provides peace of mind and confirmation that safety precautions are being properly followed. It also allows for quick intervention, should the need arise. If care is taken with the products, they are safe. Health monitoring is just a sensible extra check that can be put in place.
Note: Legal requirements regarding medical testing are listed in the Occupational Health and Safety Act no 85 of 1993.