We present an assessment on the sediment flux caused by the tailing dam failure at Mariana, Minas Gerais Estate, Brazil. Field data of water level, water flow, and suspended sediment concentrations (SSCs) were obtained during the period from 21 November to 5 December 2015, when the muddy waters reached the coast. A rating curve of the coastal tidal signal was built, allowing a robust estimate of the flow at the mouth of the Doce River. Together with SSC data, early sediment delivered to the coastal sea was of 15 × 104 t, what may account for only 0.5% of the total material remobilized at the accident site. This accounted for >25 000 t of Fe and between 1 and 4 t of other trace metals, such as Co, Ni, and Zn. Integr Environ Assess Manag 2020;16:661–668. © 2020 SETAC

中文翻译：

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从马里亚纳的尾矿坝故障到沿海海域的悬浮泥沙和金属负荷。

我们对巴西米纳斯吉拉斯州马里亚纳的尾矿坝破坏引起的泥沙通量进行了评估。在2015年11月21日至12月5日期间，当浑水到达海岸时，获得了水位，水流量和悬浮沉积物浓度（SSC）的现场数据。建立了沿海潮汐信号的等级曲线，从而可以可靠地估算多西河口的流量。加上南南合作的数据，输送到沿海海域的早期沉积物为15×104 t，仅占事故现场转移的全部物质的0.5％。这占了> 25,000吨的铁和1至4吨的其他微量金属（例如Co，Ni和Zn）。Integr环境评估管理2020； 16：661-668。©2020 SETAC