Blue-green infrastructure is a critical tool for improving stormwater quality, but the removal of dissolved, hydrophilic contaminants remains a major challenge. The authors propose a tiered conceptual framework of progressively more complex, costly, and resource-intensive interventions to remove dissolved, hydrophilic contaminants and thus minimize risks to ecosystems and drinking water sources.

Microplastics are ubiquitous – in the environment and in the human body. However, accurately detecting these particles poses major challenges for researchers from various disciplines. The authors described the methodological difficulties in the journal and call for more standardized methods in biomonitoring.

Lowlands and plains provide important ecosystem services such as agricultural and forestry production, groundwater recharge, streamflow generation and drinking water supply. This Special Issue collects scientific papers advancing understanding of the mechanisms underlying the movement and storage of water in lowland and plain environments.