According to the World Health Organization, exposure to lead can affect multiple body systems and is particularly harmful to young children and women of child-bearing age. Lead is distributed to the brain, liver, kidney and bones. It is stored in the teeth and bones, where it can accumulate over time. Human exposure is assessed through the measurement of lead in blood. Lead exposure was attributed to more than 1.5 million deaths globally in 2021, primarily due to cardiovascular effects. Lead in bone is released into blood during pregnancy and becomes a source of exposure to the developing fetus. There is no level of exposure to lead that is known to be without harmful effects. The harmful impacts on health from lead exposure are entirely preventable.
Who is at risk?
Sources of environmental contamination include mining, smelting, manufacturing and recycling activities, and lead use in a range of products. Most global lead consumption is for the manufacture of lead-acid batteries for motor vehicles. Lead is used in many products, including pigments, paints, solder, stained glass, lead crystal glassware, ammunition, ceramic glazes, jewellery, toys, some traditional cosmetics, and some traditional medicines. Lead can contaminate drinking water through plumbing systems containing lead pipes, solders and fittings.
People are exposed to lead through occupational and environmental sources. This mainly results from inhalation of lead particles generated by burning materials containing lead, for example during smelting, recycling, stripping leaded paint and plastic cables; and ingestion of contaminated dust, soil, water or food.
Young children are particularly vulnerable to lead poisoning as they may absorb up to 4–5 times as much lead as adults from an ingested dose.
Lead exposure can have serious consequences for the health of children. Exposure to very high levels of lead can severely damage the brain and central nervous system causing coma, convulsions and even death. Children who survive severe lead poisoning may be left with permanent intellectual disability and behavioural disorders. At lower levels of exposure that may have no obvious symptoms, lead can lead to a spectrum of injury across multiple body systems. In particular, lead can permanently affect children’s brain development, resulting in reduced intelligence quotient (IQ), behavioural changes including reduced attention span and increased antisocial behaviour, and reduced educational attainment. Lead exposure also causes anaemia, hypertension, renal impairment, immunotoxicity and toxicity to the reproductive organs.
There is no known safe blood lead concentration; even blood lead concentrations as low as 3.5 µg/dL may be associated with decreased intelligence in children, behavioural difficulties and learning problems
In 2021, WHO published Guidelines on clinical management exposure to lead. The guidelines recommend that for individuals with blood lead concentration equal to or greater than 5 µg/dL, the source of lead exposure should be identified, and appropriate action taken to terminate exposure.
If you are worried for lead about yourself or your family, book today. We can test for each family member, if needed, for an additional $20 for person.
During the visit, all results will then be discussed and guidance will be given to you by the provider.
Appointment Duration: 20 minutes
Price: $60