Studding the behaviour and danger of nanoparticles (NPs, minerals and amorphous phases) in the estuarine ecosystem is presently incomplete by the lack of measureable description of NPs in the ecological conditions, such as suspended-sediments (SS). In the last years, several works have revealed the toxic consequences of ultra-fine and nanoparticulate compounds on diverse systems, raising apprehensions over the nanocontaminants behaviour and destiny in the numerous ecological partitions. The general objective of the manuscript is to explain the geochemical conditions of the LES (Laguna estuarine system, southern Brazil) suspended sediments covering an area around the main South American coal plant, enhancing the creation of future public policies for environmental recovery projects. Subsequently the discharge of nanoparticles and toxic element (TE) in the ecosystem, NPs react with several constituents of the nature and suffers active alteration progressions. Contamination coming from engineering actions, wastewater, are something identifiable, however when these contaminations are accompanied by other contamination sources (e.g. mining and farming) the work gets defaulted. By combining material about the concentration of TE contaminants and NPs occurrences, this work offers novel visions into contaminant contact and the possible effects of such exposure on estuarine systems in Brazil. The results presented here will be useful for different areas of estuaries around the world.

由于缺乏在生态条件下对纳米颗粒的可测量描述，例如悬浮沉积物（SS），目前在河口生态系统中研究纳米颗粒（纳米颗粒，矿物和无定形相）的行为和危险尚不完整。在过去的几年中，几项工作揭示了超细和纳米颗粒化合物对各种系统的毒性结果，引起了人们对许多生态分区中纳米污染物行为和命运的担忧。该手稿的总体目的是解释覆盖南美主要煤炭工厂周围地区的LES（巴西南部拉古纳河口系统）悬浮沉积物的地球化学条件，从而为环境恢复项目制定未来的公共政策。随后，生态系统中的纳米颗粒和有毒元素（TE）排放，NPs与大自然的几种成分发生反应，并经历了活跃的变化过程。可以识别出来自工程活动，废水的污染，但是当这些污染伴随其他污染源（例如采矿和耕作）时，工作就被拖欠了。通过结合有关TE污染物和NPs的浓度的资料，这项工作为污染物接触以及这种接触对巴西河口系统的可能影响提供了新颖的见解。此处给出的结果将对世界各地的河口地区有所帮助。可以识别出来自工程活动，废水的污染，但是当这些污染伴随其他污染源（例如采矿和耕作）时，工作就被拖欠了。通过结合有关TE污染物和NPs的浓度的资料，这项工作为污染物接触以及这种接触对巴西河口系统的可能影响提供了新颖的见解。此处给出的结果将对世界各地的河口地区有所帮助。可以识别出来自工程活动，废水的污染，但是当这些污染伴随其他污染源（例如采矿和耕作）时，工作就被拖欠了。通过结合有关TE污染物和NPs的浓度的资料，这项工作为污染物接触以及这种接触对巴西河口系统的可能影响提供了新颖的见解。此处给出的结果将对世界各地的河口地区有所帮助。这项工作为接触污染物以及这种接触对巴西河口系统的可能影响提供了新颖的见解。此处给出的结果将对世界各地的河口地区有所帮助。这项工作为接触污染物以及这种接触对巴西河口系统的可能影响提供了新颖的见解。此处给出的结果将对世界各地的河口地区有所帮助。