Investigation of the concentration ratios of anthropogenic metal elements in fresh snow at mountain area as a tracer for the discrimination between short- and long-range transport contributions
Investigation of the concentration ratios of anthropogenic metal elements in fresh snow at mountain area as a tracer for the discrimination between short- and long-range transport contributions
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DOI：
10.1007/s44211-022-00261-w
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发表时间：
2023-01
影响因子：
1.6
通讯作者：
Yuhei Yamamoto;Kentaro Oka;Shunichi Tokoro;Naomichi Nishii;Yoichi Kikuchi;J. Nishimoto;S. Imai
中科院分区：
文献类型：
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作者：
Yuhei Yamamoto;Kentaro Oka;Shunichi Tokoro;Naomichi Nishii;Yoichi Kikuchi;J. Nishimoto;S. Imai
日本研究了与可持续发展目标有关的人为气溶胶的大气沉积。测定了山区冬季湿沉降（新雪）中作为化石燃料燃烧源指标的微量金属元素（V、Ni、Cd、Pb）的浓度。雪样中V、Ni、Cd、Pb的平均浓度分别为0.338±0.289 μ L−1、0.409±0.724 μ L−1、0.109±0.110 μ L−1和1.77±1.81 μ L−1。在边远山区的积雪样品中，V和Ni之间没有显著的相关性。Cd和Pb在东北和华北地区形成降雪的气团后轨迹中具有显著的相关性。当气团经过东北和华北地区时，在山区V和Pb之间存在显著的相关性。同一降雪期积雪中痕量金属元素标准化浓度的变化表明近郊近距离交通的影响。金属元素浓度比是判别雪中人为元素短期和长期贡献的有效示踪剂。图形抽象
Atmospheric deposition of anthropogenic aerosols, which is concerned about several targets of SDGs, was investigated in Japan. Concentrations of trace metal elements (V, Ni, Cd, and Pb), which are index of source for fossil fuel combustion, in winter wet deposition (fresh snow) in mountain area were determined. Average concentrations of snow samples were 0.338 ± 0.289 μg L−1for V, 0.409 ± 0.724 μg L−1for Ni, 0.109 ± 0.110 μg L−1for Cd, and 1.77 ± 1.81 μg L−1for Pb μg L−1. No significant correlations between V and Ni were found for snow samples at remote mountains. A significant correlation between Cd and Pb was observed when the back trajectories of air mass deriving snowfall passed through Northeast China and Huabei. Significant correlations between V and Pb were found in mountains when the air mass passed through Northeast China and Huabei. Changes in normalized concentrations of trace metal elements in snow at the same snowfall event indicated contributions from short-range transportation in suburb area. The metal element concentration ratios were shown to be useful tracers for discrimination between short- and long-range contributions of anthropogenic elements in snow.Graphical abstract