Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-15587-2019 |
Atmospheric mercury deposition over the land surfaces and the associated uncertainties in observations and simulations: a critical review | |
Zhang, Lei1,2; Zhou, Peisheng1; Cao, Shuzhen1; Zhao, Yu1,2 | |
2019-12-20 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:24页码:15587-15608 |
文章类型 | Review |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | One of the most important processes in the global mercury (Hg) biogeochemical cycling is the deposition of atmospheric Hg, including gaseous elemental mercury (GEM), gaseous oxidized mercury (GOM), and particulate-bound mercury (PBM), to the land surfaces. Results of wet, dry, and forest Hg deposition from global observation networks, individual monitoring studies, and observation-based simulations have been reviewed in this study. Uncertainties in the observation and simulation of global speciated atmospheric Hg deposition to the land surfaces have been systemically estimated based on assessment of commonly used observation methods, campaign results for comparison of different methods, model evaluation with observation data, and sensitivity analysis for model parameterization. The uncertainties of GOM and PBM dry deposition measurements come from the interference of unwanted Hg forms or incomplete capture of targeted Hg forms, while that of GEM dry deposition observation originates from the lack of a standardized experimental system and operating procedure. The large biases in the measurements of GOM and PBM concentrations and the high sensitivities of key parameters in resistance models lead to high uncertainties in GOM and PBM dry deposition simulation. Non-precipitation Hg wet deposition could play a crucial role in alpine and coastal regions, and its high uncertainties in both observation and simulation affect the overall uncertainties of Hg wet deposition. The overall uncertainties in the observation and simulation of the total global Hg deposition were estimated to be +/- (25-50) % and +/- (45-70) %, respectively, with the largest contributions from dry deposition. According to the results from uncertainty analysis, future research needs were recommended, among which a global Hg dry deposition network, unified methods for GOM and PBM dry deposition measurements, quantitative methods for GOM speciation, campaigns for comprehensive forest Hg behavior, and more efforts in long-term Hg deposition monitoring in Asia are the top priorities. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000504010900001 |
WOS关键词 | GASEOUS OXIDIZED MERCURY ; PARTICULATE-BOUND MERCURY ; PASSIVE SAMPLING SYSTEMS ; DECIDUOUS UPLAND FORESTS ; KCL-COATED DENUDERS ; HIGH-ELEVATION SITE ; DRY-DEPOSITION ; WET DEPOSITION ; ELEMENTAL MERCURY ; SPATIAL-PATTERNS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/224151 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Nanjing Univ, Sch Environm, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China; 2.Nanjing Univ, State Key Lab Pollut Control & Resource Reuse, 163 Xianlin Ave, Nanjing 210023, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Lei,Zhou, Peisheng,Cao, Shuzhen,et al. Atmospheric mercury deposition over the land surfaces and the associated uncertainties in observations and simulations: a critical review[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(24):15587-15608. |
APA | Zhang, Lei,Zhou, Peisheng,Cao, Shuzhen,&Zhao, Yu.(2019).Atmospheric mercury deposition over the land surfaces and the associated uncertainties in observations and simulations: a critical review.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(24),15587-15608. |
MLA | Zhang, Lei,et al."Atmospheric mercury deposition over the land surfaces and the associated uncertainties in observations and simulations: a critical review".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.24(2019):15587-15608. |
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