Loodpijpen

Loodpijpen, or lead pipes, are pipes made from lead used in building plumbing systems to carry drinking water. They were common in many countries from the 18th to mid-20th centuries because lead is malleable and durable. Over time, corrosion can cause lead to leach into the water, posing health risks and prompting widespread replacement of lead infrastructure.

Lead exposure is a significant public health concern. Lead is a toxic metal that can affect neurological development in children and cause kidney and cardiovascular problems in adults. There is no known safe level of lead in drinking water, and even low concentrations can be harmful with long-term exposure. The risk depends on factors such as water chemistry, usage patterns, and the presence of other lead-containing materials in the plumbing system.

The amount of lead that enters water depends on several factors, including the water’s pH, hardness, temperature, and the duration of water contact with pipes. Soft, acidic, and stagnant water increases leaching, while protective mineral scales can reduce it. Mixing lead pipes with other metals can also accelerate corrosion. In many places, even if lead pipes are not installed today, older service lines with lead components may still exist.

Regulation and replacement efforts aim to reduce lead exposure. Many countries prohibit the use of lead pipes in new installations and encourage or require the replacement of lead service lines. Utilities and homeowners may replace sections of piping or install treatment measures. Alternatives to lead include copper, plastic (such as PEX or PVC), and other lead-free alloys.

Mitigation measures include flushing cold water before use, treating water to reduce corrosivity, and using certified filtration devices when appropriate. Public health guidance emphasizes preventing lead exposure through safe water practices and timely replacement of lead-containing plumbing.