ARSENIC , URINE

Reference values and Delivery Time Modification

Test code: 842

Effective update from 18/05/2018

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Less than 10 µg/g creatinine   B.E.I         :Less than 50 µg/g creatinine   B.L.V.(F.S.)  :          50 µg/g creatinine   DL(Detection limit)     : 1 µg/g creatinine   QL(Quantification limit): 3 µg/g creatinine  * Source: Bibliographic Values                 Delivery term: 5 days

Not exposed  : Less than 10 µg/g creatinine   B.E.I.       : Less than 50 µg/g creatinine   DL(Detection limit)     : 1 µg/g creatinine   QL(Quantification limit): 3 µg/g creatinine        1- Total arsenic concentration in urine is not the adequate indicator to assess the arsenic occupational exposure index.   2- The concentration of "total" arsenic in urine can be strongly conditioned by the type of diet. The possible presence of arsenic in foods of marine origin, especially in bivalves (clams, oysters, mussels), in crustaceans (crabs, lobsters), in certain cold-water fish that feed on the seabed and in marine algae, must be taken into account in the interpretation of the result. The organic forms of arsenic found in foods of marine origin (mainly arsenobetaina and arsenocolina) are generally considered non-toxic and are excreted in the urine 48 hours after being ingested. 3- The measurement of inorganic arsenic in urine at the end of the working day is recommended to assess the occupational exposure index.               * Source:     · Enciclopedia de salud y seguridad en el           trabajo, tomo I, 27 - INSHT     · ATSDR(Agency for Toxic Substances and        Disease Registry), 2007                   Delivery term: 4 days

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