Department of Ecology and Zoology, Laboratory of Continental Water Ecology (LIMNOS), Federal University of Santa Catarina, Campus Universitário, S/N, Sala 210, Bloco B, Térreo - Córrego Grande, ZIP: 88.040-900, Florianópolis, SC, Brazil.
Department of Ecology and Zoology, Laboratory of Continental Water Ecology (LIMNOS), Federal University of Santa Catarina, Campus Universitário, S/N, Sala 203, Bloco B, Térreo - Córrego Grande, ZIP: 88.040-900, Florianópolis, SC, Brazil.
Environ Sci Pollut Res Int. 2024 Apr;31(20):28870-28889. doi: 10.1007/s11356-024-33029-y. Epub 2024 Apr 2.
Urbanization in watersheds leads to the introduction of sources of microplastics and other pollutants in water bodies. However, the effect of urbanization on microplastic pollution and the relationship between microplastics and water quality are not well understood. We assessed the distribution of microplastics in tributaries urbanized, non-urbanized and in the receiving lagoon body of Conceição Lagoon watershed. The results show that urbanization significantly affects water quality but does not differentiate tributaries in terms of microplastic concentrations. Microplastic concentrations were lower in the receiving lagoon body compared with the tributaries, highlighting their importance in microplastic pollution in the studied lagoon. Microplastic concentration was correlated with low N:P ratios in the lagoon and associated with high levels of total phosphorus, which indicate the discharge of effluents. The correlations between microplastic concentration, water temperature, and dissolved oxygen in the lagoon were based on the temporal variations of these variables. Precipitation and wind velocity had influence on microplastic distribution in the watershed. Our findings underscore the importance of evaluating water quality parameters and meteorological variables to comprehend the microplastic distribution at small watersheds.
流域的城市化导致微塑料和其他污染物源进入水体。然而，城市化对微塑料污染的影响以及微塑料与水质之间的关系还不是很清楚。我们评估了 Conceição 拉古纳流域城市化、非城市化支流和受纳泻湖体内微塑料的分布。结果表明，城市化显著影响水质，但在微塑料浓度方面没有区分支流。与支流相比，受纳泻湖体内的微塑料浓度较低，这突出了它们在研究泻湖微塑料污染中的重要性。微塑料浓度与泻湖中的低 N:P 比值相关，与总磷水平相关，表明有废水排放。微塑料浓度与泻湖内的水温、溶解氧之间的相关性是基于这些变量的时间变化。降雨量和风速对流域内微塑料的分布有影响。我们的研究结果强调了评估水质参数和气象变量的重要性，以了解小流域的微塑料分布。
