Iodine-129 in animal thyroids from Argentina.
(129)I and (127)I concentrations in animal thyroids coming from several regions of Argentina were determined by accelerator mass spectrometry (AMS) and gas chromatography (GC), respectively. The measured (129)I/(127)I ratios, ranging from 3 × 10(-12) to 4 × 10(-10), are significantly lower than those typical for areas in the northern hemisphere (10(-10)-10(-7)). The (129)I concentrations show a clear dependence with latitude and season, which can be understood considering tropospheric circulation patterns, possible (129)I sources and regional precipitation rates.
Laboratorio TANDAR, CNEA, Av. Gral. Paz 1499, B1650KNA, San Martín, Buenos Aires, Argentina. negri@tandar.cnea.gov.ar
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AE
Negri
J O
JO
Fernández Niello
A
A
Wallner
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A
Arazi
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Steier
D000396:Air Pollutants, Radioactive / Q000032:analysis*; D000818:Animals; D001118:Argentina; D002417:Cattle; D002849:Chromatography, Gas / Q000662:veterinary; D004781:Environmental Exposure; D004784:Environmental Monitoring; D007455:Iodine / Q000032:analysis*; D007457:Iodine Radioisotopes / Q000032:analysis; D013058:Mass Spectrometry / Q000662:veterinary; D012621:Seasons; D013961:Thyroid Gland / Q000737:chemistry*
D000396:Air Pollutants, Radioactive; D007457:Iodine Radioisotopes; D007455:Iodine