Wednesday, 8 January 2014

Sampling Methods Used By A Lead Inspector In San Diego

By Marcia Marks


It is for the purposes of safety and good health that a lead inspector in San Diego is invited to carry out testing procedures. This is usually due to the state law requirements which were put in place after it was observed that lead has negative implication on human life. The term used to refer to the effect of the chemical in the body is lead-poisoning. This is experienced as a result of elevated levels of this chemical in the blood.

The severity of Pb poisoning depends on the age with children being the most affected. Adults are only affected by large quantities of this metal. Children affected by this metal normally manifest the following characteristics: Learning disability, low IQ, attention deficit disorder, stunted growth among others. Adults on the other hand will exhibit the following effects: Fertility problem, nerves disorder, increased blood pressure among others. Note this; if no intervention is sought early enough, then Pb poisoning can lead to fatality.

Detecting the presence of Pb or its elements in a property is not always an easy affair. The process involves a series of sample collection from different parts in the property. The samples are then packaged and labeled appropriately then taken to the laboratory. It is important to note that not all laboratories have the capability of performing the required sample analysis, in this case a certified Pb analysis laboratories should be used.

Sampling is very important; care is taken because improper sampling might not yield the best result. Three sampling methods are commonly in use by many experts; this is because of the variations in the materials used in building. Discussed below are the three commonly used sampling methods.

The first one is known as dust wipe sampling method. This process is preferred for hard, smooth and nonporous surfaces. It is also good to note that dust from textured surfaces like bricks might not make the best samples. Dust obtained from fiber surfaces like carpets and cloth-covered furniture should be avoided if possible. Samples that guarantee best results are dust from floors or windowsills. Protective gear such as plastic gloves should always be worn.

Soil sampling method involves collecting samples from the ground. It is based on the fact that most pain particles or other things containing Pb such as car smoke end up in the ground. Soil sampling is only performed just for the safety of your home but it is not required for compliance to hazardous waste regulation.

Samples are then taken of paints used in the home through the last method called paint chipping. This is compulsory as many paints are made using Pb elements. This process can be done either manually or by the use of a portable device that can measure the Pb content in the required surface.

It is the work of the lead inspector in San Diego to read and interpret the result provided by the lab technician. The next thing is to determine the severity of contamination ad come up with the appropriate course of action to make sure that the home is free of Pb. After that, another sampling is carried out to ensure that no lead is present.




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