Dosimeter wearing

Among the first dermal dosimeters used in exposure research were 4 x 4-in cellulose or gauze patches which were pinned to the outer and inner surfaces of clothing or vests which farm workers would wear during the application or re-entry phase of the smdy. These patches were easy to manufacture and when pinned to the shirt or pants of the worker made for an easily used dosimeter pad. The major advantage to the use of the patch to estimate worker exposure was this method s ability to differentiate the relative contributions of pesticide residues to different parts of the worker s body. This sampling technique in turn could lead to recommendations (i.e., the use of... 

Care should be taken to have plastic sheeting available to cover the tables if sudden rain occurs. Alternatively, the tables with the matrices may be moved under the cover of a shed in the case of rain. Some would argue that the matrices should be left in the rain to mimic the exact conditions of the test site however, generally, the workers wearing the test dosimeters will not work in the rain or the researcher may decide to bring the workers out of the rain in order to have more control of the interpretation of the results of the study at a later time. Generally, more experienced researchers will opt for removing the held fortifications and workers from a rainy situation. 

The WBDs retained an average potential dermal exposure (PDE) of 13,757 pg chlorpyrifos. If clothing penetration is assumed to be 10% and dermal absorption 9.6% per 24 hr, then the absorbed dose would be 132 pg, and the absorbed dosage would be about 1.9 pg/kg. Biological monitoring of the 13 volunteers wearing cotton dosimeters indicated that the absorbed daily dose that penetrated the WBD and was absorbed was 2 pg chlorpyrifos equivalents/kg (Table 2). 

Dosimeters under protective clothing represent those that are worn between normal clothing and protective clothing (e.g. protective coveralls) or under protective clothing but in contact with skin (as in the case of a forearm dosimeter for a worker wearing a short-sleeve shirt and protective coveralls). 

True or false It is okay to be in a room without wearing an individual dosimeter when the source of x-rays is energized as long you are not involved in the experiment. 

When a Ford plant was reconstructed] noise was eliminated by design. Ford s efforts have paid off. Recent tests that equipped 300 employees in the plant with noise dosimeters showed none were being exposed to noise above 85 dBA. Of 700 employees in the new plant, fewer than 60 are required to wear hearing protection or undergo testing. Any company that buys equipment can specify maximum noise levels for new purchases. 

The personnel monitors normally used for individual monitoring must be processed by a dosimetry processor holding personnel dosimetry accreditation from the National Voluntary Laboratory Accreditation Program (NVLAP) of the National Institute of Standards and Technology for the type of radiation or radiations included in the NVLAP program that most closely approximates the exposure characteristics for the individual wearing the dosimeter. 

Dosimeters are the primary means of assessing external exposures. When required by a technical work document, personnel are required to wear dosimeters. Dosimeters are issued and monitored on a monthly or a quarterly basis, dependent on work requirements. Thermoluminescent Dosimeters (TLD s) are used at SNL as the basis for personnel dose exposure records. Self-reading dosimeters are used on an as-needed basis for specific jobs. Dosimeters are routinely maintained and calibrated by the SNL radiation protection organization In the ES H Center.. ... 

Current regulations in the United States require that no member of the public may receive more than 500 mrem/year whole-body exposure from nonmedical x-ray equipment. On the other hand, a designated radiation worker may receive up to 5 rem/year whole-body exposure and 75 rem/year to hands and forearms. In order to record this exposure value, radiation workers wear film badges or similar dosimeters since it is assumed that they will be working around operating radiation sources and it is potentially possible to exceed this permissible exposure. 

Emergency responders entering an area where they may be exposed to radiation need to wear radiation dosimeters. A dosimeter records the amount of gamma... 

Tfou may enter the scene wearing Level G PPE with a radiation dosimeter. 

You should always wear both a TLD and a responder-readable dosimeter (pencil dosimeter). The pencil dosimeter gives you an immediate but rough estimate of cumulative exposure, while the TLD (calculated later) gives you a more accurate determination of total dose exposure. 

Dosimeters Many workers wear noise dosimeters during a work day. Some dosimeters are pocket-sized or smaller. A dosimeter continuously records the sound level. It may also integrate sound level over time relative to an... 

There will be local rules that define things that must be done (e.g., wear dosimeters) and things that must not be done (e.g., do not eat, drink, smoke or apply cosmetics) in the working area. Personal handkerchiefs should never be used instead, disposable tissues must always be used. Workers should never use mouth-operated equipment or put anything in their mouths. Cuts or abrasions of the skin should be covered with an impervious dressing before entry into the work area. Items should not be removed from the area until they have been properly monitored and cleaned. 

Sv or Gy) or equivalent Wearing personal dosimeters Electronic dosimeter Direct display Alarm function Costly ... 

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