کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6316839 1619166 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterizations of wet mercury deposition on a remote high-elevation site in the southeastern Tibetan Plateau
ترجمه فارسی عنوان
خصوصیات رسوبدهی جیوه مرطوب در یک محل بلند پرواز از راه دور در پلاتو جنوب شرقی تبت
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
چکیده انگلیسی
Accurate measurements of wet mercury (Hg) deposition are critically important for the assessment of ecological responses to pollutant loading. The Hg in wet deposition was measured over a 3-year period in the southeastern Tibetan Plateau. The volume-weighted mean (VWM) total Hg (HgT) concentration was somewhat lower than those reported in other regions of the Tibetan Plateau, but the VWM methyl-Hg concentration and deposition flux were among the highest globally reported values. The VWM HgT concentration was higher in non-monsoon season than in monsoon season, and wet HgT deposition was dominated by the precipitation amount rather than the scavenging of atmospheric Hg by precipitation. The dominant Hg species in precipitation was mainly in the form of dissolved Hg, which indicates the pivotal role of reactive gaseous Hg within-cloud scavenging to wet Hg deposition. Moreover, an increasing trend in precipitation Hg concentrations was synchronous with the recent economic development in South Asia.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 206, November 2015, Pages 518-526
نویسندگان
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