Rascón Jesús, Cotrina Rioja Lesvi T, Huaman Vilca Shanndy, Santa Cruz Guerrero Carlos, Altamirano-Oporto Juan Carlos, Salas López Rolando, Silva López Jhonsy Omar
Research Institute for the Sustainable Development of Ceja de Selva, National University Toribio Rodríguez de Mendoza, Chachapoyas, Amazonas, Peru.
Research Institute of Tropical Diseases, National University Toribio Rodríguez de Mendoza, Chachapoyas, Amazonas, Peru.
Sci Rep. 2024 Oct 11;14(1):23793. doi: 10.1038/s41598-024-74648-2.
Lake Burlan, a lentic ecosystem artificially created by untreated runoff from adjacent rice fields, is located in the Amazon region within the dry forests of northern Peru. This body of water plays a fundamental role in agriculture and recreational activities in the area, which are fundamental to the local economy. This research aimed to evaluate the water quality of Lake Burlan using the Water Quality Index of Peru (WQI-PE). In addition, both spatial and depth variations of limnological parameters and trace elements were determined. The WQI-PE was calculated at seven sampling stations at two depths (surface level and one meter), using 18 limnological parameters and nine trace elements. The WQI-PE assessment indicated that the lake water quality ranged from poor to fair for both depths. Statistical analysis showed that nine limnological parameters and five trace elements showed spatial differences across seven sampling stations, while three limnological parameters and two trace elements showed depth-dependent variations. Concentrations of arsenic, cadmium, mercury, and lead were in exceedance of the national and international standards on environmental water quality. Therefore, the water quality of Lake Burlan is affected mainly by the impact of the surrounding rice fields and recreational activities. This research establishes a starting point for future monitoring to assist in the implementation of prevention and mitigation.
布尔兰湖是一个由邻近稻田未经处理的径流人工形成的静水生态系统，位于秘鲁北部干旱森林的亚马逊地区内。这片水域在该地区的农业和娱乐活动中发挥着重要作用，而这些活动对当地经济至关重要。本研究旨在使用秘鲁水质指数（WQI-PE）评估布尔兰湖的水质。此外，还测定了湖沼学参数和微量元素的空间及深度变化。在七个采样站的两个深度（水面和一米深处）计算WQI-PE，使用了18个湖沼学参数和9种微量元素。WQI-PE评估表明，两个深度的湖水水质均为差到一般。统计分析表明，九个湖沼学参数和五种微量元素在七个采样站之间存在空间差异，而三个湖沼学参数和两种微量元素呈现出深度依赖性变化。砷、镉、汞和铅的浓度超过了国家和国际环境水质标准。因此，布尔兰湖的水质主要受到周边稻田和娱乐活动的影响。本研究为未来的监测奠定了基础，以协助实施预防和缓解措施。
