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Heavy metal pollution, particularly lead contamination, poses significant environmental and public health risks in urban areas. This study investigates the spatial distribution of lead in snowmelt within Jelgava, Latvia, to identify pollution sources, assess potential environmental impacts, and provide insights into urban pollution management. From 2020 to 2024, snow samples were collected from diverse urban locations, including highways, railway-adjacent zones, industrial districts, and residential areas. Inducti...

The research was carried out to examine the influence of tributary inflows on the hydrochemical properties of the Svete River, which traverses intensive agricultural regions. Sixteen monitoring sites were selected along the main channel and at major tributary junctions. Water samples were collected monthly from surface layers (0 5 cm) over a one-year period, and concentrations of total nitrogen, total phosphorus, and selected metals were evaluated. A multi-parameter probe and an inductively coupled plasma optical ...