Heatmap visualizations of arsenic, cadmium, and copper concentrations in streambed sediment in the Clark Fork River, Montana, 1996-2020

Long-term monitoring of stream-bed sediments reveals spatial and temporal trends in metal concentrations. Here we use concentration gradient “heat maps” as a...对河床沉积物的长期监测揭示了金属浓度的时空分布趋势。本研究采用浓度梯度热图（heat maps）作为……