Centro de Estudios Transdisciplinarios del Agua (CETA), Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Av. Chorroarín 280, CP1427 Buenos Aires, Argentina.
Bull Environ Contam Toxicol. 2011 Jan;86(1):129-32. doi: 10.1007/s00128-010-0177-8. Epub 2010 Dec 14.
In this paper, the geographic distribution of arsenic and other trace elements in surface waters of 39 lotic ecosystems of central Argentina was evaluated. Manganese and arsenic were the most conspicuous elements, being present in 82% and 59% of the sampled ecosystems of this region, respectively. As concentration averaged 113.69 μg L⁻¹ varying between 55 and 198 μg L⁻¹, other trace elements were hardly detected or not detected at all. It was remarkable the absence of detectable concentrations of anthropogenically derived metals as lead (Pb) and cadmium (Cd).
本研究评估了阿根廷中部 39 个流动生态系统地表水的砷和其他微量元素的地理分布。锰和砷是最显著的元素，分别存在于该地区 82%和 59%的采样生态系统中。砷的浓度平均为 113.69μg/L，范围在 55 至 198μg/L 之间，其他微量元素则很难检测到或根本没有检测到。值得注意的是，没有检测到人为来源的金属（如铅和镉）的可检出浓度。
