Lead is a naturally occurring element found in small amounts in the earth’s crust. While it has its benefits to mankind as it is used in a variety of products such as batteries, ceramics, pipes and plumbing materials, solders, gasoline, and paint, it can also be toxic to humans.
Most modern homes today have tap water and this precious commodity is supplied through a system of pipelines. These pipelines are built using a wide variety of materials from galvanized iron and mild steel to stainless steel and asbestos. Over time, oxidation occurs and these pipes start to corrode, resulting in harmful heavy metal, such as lead, to slowly leach into our drinking water supply.
Lead is a neurotoxin and it can affect the nervous system. Children compared to adults are more vulnerable to lead as they tend to absorb more of this toxin because they are in the growing stage. Depending on the level and duration of exposure, the most common effect on children are a decrease in IQ, learning disabilities, problems with motor and sensory skills, as well as attention and behavioural problems.
No doubt there are strict parameters that need to be followed by the water bodies that supply drinking water. These parameters often mean that contaminants can still be present in drinking water, however the level of the contaminants must be below the hazardous level. Thus, it is good practise to install a water purifier at home to remove lead and other possible contaminants that may be in our water supply. Prevention is always better than cure.