Microplastics are small particles of plastic, less than 5 mm in size, and are considered to be a modern-day pollutant. Its presence in the water cycle and its impact on ecosystems are a serious threat to the environment. Groundwater is the main source of drinking water, so it is essential to monitor the presence of microplastics in groundwater and to investigate their sources and pathways. This article reviews the main pathways of microplastic contamination from surface water, seawater and soil to groundwater. The paper also discusses the difficulties in monitoring microplastics in groundwater and highlights the need for standardised sampling and determination techniques. The authors stress the importance of understanding the specific hydrogeological conditions, collecting representative samples and preventing contamination at all stages of the monitoring process. The review provides valuable guidance for improving the reliability and comparability of research in this field.

Taken from the article:

COLMENAREJO CALERO, Elvira, KOVAČ VIRŠEK, Manca, MALI, Nina. Microplastics in groundwater: pathways, occurrence, and monitoring challenges. Water. 2024, vol. 16, no. 9, 22 p. ISSN 2073-4441. DOI: 10.3390/w16091228. [COBISS.SI-ID 194725635]