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首页> 外文期刊>Chinese science bulletin >Elemental composition of aerosols collected in the glacier area on Nyainqentanglha Range, Tibetan Plateau, during summer monsoon season
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Elemental composition of aerosols collected in the glacier area on Nyainqentanglha Range, Tibetan Plateau, during summer monsoon season

机译：夏季风季期间，青藏高原念青唐古拉山脉冰川地区收集的气溶胶的元素组成

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摘要

In order to investigate the elemental composition in atmospheric aerosols and its sources in the glacier area over the Tibetan Plateau (TP), seven totally suspended particle samples were collected continuously at the col of the Zhadang glacier (30°28'N, 90°39'E, 5800 m a.s.L), Nyainqentangiha Range, southern TP, from June to October 2006. Twenty-seven elements (Li, Be, B, Na, Mg, Al, K, Ca, Sc, Ti, V, Fe, Mn, Zn, Ga, As, Rb, Sr, Y, Cd, Cs, Ba, TI, Pb, Bi, Th, U) were analyzed by Inductively CoupledPlasma Mass Spectrometry (ICP-MS). The result indicates that the concentrations of most elements (especially crustal elements) are lower than values at the Nam Co Station during the same period of 2005, and also much lower than other sites in the TP such as Wudaoliang and Waliguan. This suggests that elemental compositions of aerosols in the Zhadang glacier area may represent the background levels of the middle/upper troposphere over the TP. Crustal enrichment factors (EFs) reveal that several elements(e.g. B, Zn, As, Cd, Pb and Bi) may have anthropogenic sources. The southern TP is mainly influenced by the summer Indian monsoon during the sampling period. Backward air mass trajectory analysis suggests that air masses in the region may originate fromSouth Asia. Therefore, anthropogenic pollutants from South Asia may be transported by the summer Indian monsoon to the region which clearly affects the atmospheric environment in the southern TP during the summer monsoon season.
机译：为了调查青藏高原（TP）冰川地区大气气溶胶的元素组成及其来源，在扎当冰川（30°28'N，90°39）连续采集了七个完全悬浮的颗粒样品。 'E，5800 m asL），TP南部Nyainqentangiha Range，从2006年6月至10月。27种元素（Li，Be，B，Na，Mg，Al，K，Ca，Sc，Ti，V，Fe，Mn通过电感耦合等离子体质谱法（ICP-MS）分析了Zn，Ga，As，Rb，Sr，Y，Cd，Cs，Ba，TI，Pb，Bi，Th，U）。结果表明，大多数元素（尤其是地壳元素）的浓度低于2005年同期的南Co站，而且也大大低于TP的其他站点如五道梁和瓦里关。这表明扎当冰川地区气溶胶的元素组成可能代表了TP上方对流层中/上层的背景水平。地壳富集因子（EFs）表明，某些元素（例如B，Zn，As，Cd，Pb和Bi）可能具有人为来源。在采样期间，南部的TP主要受夏季印度季风的影响。向后的气团轨迹分析表明，该地区的气团可能起源于南亚。因此，来自南亚的人为污染物可能在夏季印度季风之前被输送到该地区，这明显影响了夏季季风季节南部TP的大气环境。

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