Atmospheric wet deposition of trace elements to a suburban environment, Reston, Virginia, USA

2004 ◽  
Vol 38 (24) ◽  
pp. 4025-4033 ◽  
Author(s):  
Kathryn M Conko ◽  
Karen C Rice ◽  
Margaret M Kennedy
Keyword(s):  
Trace Elements ◽  
Wet Deposition ◽  
Suburban Environment

Trace elements and Pb isotope composition of annual tree rings and pine needles growing in highly industrialized region in southern Poland

2021 ◽  
Author(s):  
Barbara Sensuła ◽  
Nathalie Fagel
Keyword(s):  
Trace Elements ◽  
Chemical Composition ◽  
Tree Rings ◽  
Wet Deposition ◽  
Isotope Ratio ◽  
Isotope Composition ◽  
Pine Needles ◽  
Pb Isotope ◽  
Southern Poland ◽  
Icp Ms

<p>Trees can provide annual records of ecosystem changes connected with human activity over several decades. These changes can be recorded in the pattern of variation of tree-rings widths and in the variation in the elemental composition of wood. Analysis of trace metal pollution is based on the assumption that element concentrations in tree foliage and tree rings represent element availability in the environment.</p><p>We determined the chemical composition of pine needles and annual tree rings to monitor environmental contamination in an urban forest environment in the most industrialized part of southern Poland.</p><p>The concentrations of trace elements (Cr, Co, Ni, Cu, Zn, Pb) and the Pb isotope composition were measured in needles from Pinus sylvestris L. growing in nine urban forests near five factories. Trace elemental concentration and Pb isotope ratio were determined by ICP-MS and MC-ICP-MS, respectively. The needles were characterized based on the concentrations of Cr, ranging from 0.05 to 0.7 mg/kg, Co, from 0.005 to 0.075 mg/kg, Ni, from 0.12 to 0.66 mg/kg, Cu, from 0.49 to 1.0 mg/kg, Zn, from 3.9 to 14 mg/kg, and Pb, from 0.06 to 0.53 mg/kg. The <sup>208</sup>Pb/<sup>206</sup>Pb ratio ranged from 2.08 to 2.11 and the <sup>206</sup>Pb/<sup>207</sup>Pb ratio between 1.15 and 1.17. The heterogeneity of Pb isotope ratio indicates that there are different sources affecting the Pb isotopic composition of pine needles (Sensuła et al., 2021).</p><p>In one of the investigated site, a radial trace-element profiles were determined by Laser Ablation Inductively Coupled Plasma-Mass Spectrometry (Laser ablation: New Wave Research UP-193 FX Fast Excimer, ICP-MS: Thermo Scientific X-Series2 with CCT -Collision Cell Technology) at Royal Museum for Central Africa (Belgium). LA-ICP-MS provides a repeatable, minimally destructive, sensitive method for determining many elements in wood tissue, with relatively high spatial resolution.Temporal variations of element concentration (median) in annual tree-rings of pines were compared with time series of wet deposition of pollutant and air pollutant concentration in the investigated area. The similar trends of magnitudes changes can be observed between analysed elements concentration (Na, Mg, Fe, Ni, Zn) and total wet deposition of these elements in the environment during vegetation period or these elements concentration in the rain (Sensuła et al. 2017). </p><p>Different space-time patterns of element accumulation in pine needles and annaul tree rings were observed. The variation in isotopic composition reflects a mix between different anthropogenic sources.</p><p> </p><p>References:</p><p>Sensuła, B., Wilczyński, S., Monin, L., Allan, M., Pazdur, A., & Fagel, N. (2017). Variations of tree ring width and chemical composition of wood of pine growing in the area nearby chemical factories, Geochronometria, 44(1), 226-239. doi: https://doi.org/10.1515/geochr-2015-0064</p><p>Sensuła, B., Fagel, N., & Michczyński, A. (2021). Radiocarbon, trace elements and pb isotope composition of pine needles from a highly industrialized region in southern Poland. Radiocarbon, 1-14. doi:10.1017/RDC.2020.132</p>

Measurement of mercury, other trace elements and major ions in wet deposition at Jomsom: The semi-arid mountain valley of the Central Himalaya

2020 ◽  
Vol 234 ◽  
pp. 104691 ◽  
Author(s):  
Lekhendra Tripathee ◽  
Junming Guo ◽  
Shichang Kang ◽  
Rukumesh Paudyal ◽  
Chhatra Mani Sharma ◽  
...  
Keyword(s):  
Trace Elements ◽  
Wet Deposition ◽  
Major Ions ◽  
Central Himalaya ◽  
Mountain Valley ◽  
Semi Arid

Atmospheric wet deposition of trace elements to chesapeake bay: CBAD study year 1 results

1994 ◽  
Vol 28 (8) ◽  
pp. 1487-1498 ◽  
Author(s):  
Joseph R. Scudlark ◽  
Kathryn M. Conko ◽  
Thomas M. Church
Keyword(s):  
Trace Elements ◽  
Chesapeake Bay ◽  
Wet Deposition

Trace elements and rare earth elements in wet deposition of Lijiang, Mt. Yulong region, southeastern edge of the Tibetan Plateau

2017 ◽  
Vol 52 ◽  
pp. 18-28 ◽  
Author(s):  
Junming Guo ◽  
Shichang Kang ◽  
Jie Huang ◽  
Mika Sillanpää ◽  
Hewen Niu ◽  
...  
Keyword(s):  
Trace Elements ◽  
Rare Earth ◽  
Tibetan Plateau ◽  
Rare Earth Elements ◽  
Wet Deposition ◽  
The Tibetan Plateau

scholarly journals The Influence of Meteorological Conditions on the Wet Deposition of Mercury in Southern Florida

2005 ◽  
Vol 44 (9) ◽  
pp. 1421-1435 ◽  
Author(s):  
J. Timothy Dvonch ◽  
Gerald J. Keeler ◽  
Frank J. Marsik
Keyword(s):  
Trace Elements ◽  
Wet Deposition ◽  
Dominant Role ◽  
Waste Incineration ◽  
Meteorological Conditions ◽  
Anthropogenic Sources ◽  
Precipitation Event ◽  
Southern Florida ◽  
Urban Emissions ◽  
Source Receptor Relationships

Abstract Source–receptor relationships for mercury (Hg) and other trace elements wet deposited in southeastern Florida were investigated using daily event precipitation samples collected over a 1-yr period in 1995–96. Data collected in Davie, Florida, showed significantly higher (2.2 times) volume-weighted mean (VWM) Hg concentrations during the spring and summer seasons relative to winter. A meteorological tracer analysis, utilizing the ratio of trace elements lanthanum (La) to cerium (Ce), determined that “feed” air to precipitation cells arriving at the site incorporated local urban emissions more frequently during the spring and summer seasons. Using Weather Surveillance Radar-1988 Doppler (WSR-88D) data, analysis of precipitation-cell path histories for events collected at 17 sites in southeastern Florida over 1 month in the summer of 1995 showed significantly higher (2.0 times) VWM Hg concentrations in events with easterly cell paths than in those with westerly paths for storms arriving at Everglades sites. Significantly higher VWM concentrations for known anthropogenic elements vanadium (V) and nickel (Ni) (oil combustion) and lead (Pb) and antimony (Sb) (waste incineration) were also observed in events with easterly paths. In addition, events arriving from the east (offshore) that impacted the coastal sites were significantly lower in Hg (a factor of 2.6) than were events from the east that impacted the urban sites (after events moved inland over emission sources). This study demonstrates that source–receptor relationships can be established by analyzing the meteorological conditions corresponding to each precipitation event, and it supports the previous finding that local anthropogenic sources played the dominant role in the wet deposition of Hg to southern Florida and the Everglades during the study period.

Wet deposition of major ions and trace elements in rural and coastal-urban sites in Monastir Region, Eastern Tunisia

2020 ◽  
Vol 13 (2) ◽  
Author(s):  
Iness Chabbi ◽  
Moez Bahloul ◽  
Rym Dammak ◽  
Houda Baati ◽  
Chafai Azri
Keyword(s):  
Trace Elements ◽  
Wet Deposition ◽  
Major Ions ◽  
Urban Sites

Concentrations of trace elements in wet deposition over the central Himalayas, Nepal

2014 ◽  
Vol 95 ◽  
pp. 231-238 ◽  
Author(s):  
Lekhendra Tripathee ◽  
Shichang Kang ◽  
Jie Huang ◽  
Chhatra Mani Sharma ◽  
Mika Sillanpää ◽  
...  
Keyword(s):  
Trace Elements ◽  
Wet Deposition ◽  
Central Himalayas

scholarly journals Mercury and trace metal wet deposition across five stations in Alaska: controlling factors, spatial patterns, and source regions

2018 ◽  
Author(s):  
Christopher Pearson ◽  
Dean Howard ◽  
Christopher Moore ◽  
Daniel Obrist
Keyword(s):  
Trace Elements ◽  
Trace Metal ◽  
Wet Deposition ◽  
Enrichment Factors ◽  
The Arctic ◽  
Lower Latitude ◽  
Diffuse Source ◽  
Source Regions ◽  
Kodiak Island ◽  
Annual Deposition

Abstract. A total of 1,360 weeks of mercury (Hg) wet deposition data were collected by the State of Alaska Department of Environmental Conservation and the U.S. National Park Service, across five stations covering up to eight years. Here, we analyze concentration patterns, source regions, and seasonal and annual deposition loadings across these five sites in Alaska, along with auxiliary trace metals including Cr, Ni, As, and Pb. We found that Hg concentrations in precipitation at the two northern-most stations, Nome (64.5° N) along the coast of the Bering Sea and the inland site of Gates of the Arctic (66.9° N), were significantly higher (average of 5.3 ng L−1 and 5.5 ng L−1, respectively) than those at the two lowest-latitude sites, Kodiak Island (57.7° N, 2.7 ng L−1) and Glacier Bay (58.5° N, 2.6 ng L−1). These differences were largely explained by different precipitation regimes, with higher amounts of precipitation at the lower latitude stations leading to dilution effects. Highest annual Hg deposition loads were consistently observed at Kodiak Island (4.80 +/− 1.04 µg m−2), while lowest annual deposition was at Gates of the Arctic (2.11 +/− 0.67 µg m−2). Across all stations and collection years, annual precipitation overwhelmingly controlled annual Hg deposition, explaining 73 % of the variability in observed annual Hg deposition. Our analyses further showed that annual Hg deposition loads across all five Alaska sites were consistently among the lowest in the United States, ranking in the lowest 1 to 5 percent of over 99 monitoring stations. Detailed back trajectory analyses showed diffuse source regions for most Hg deposition sites, which were almost identical with precipitation origins, suggesting global or regional Hg sources. One notable exception was Nome where we found pronounced differences between precipitation and Hg source origins with increased Hg contributions from the western Pacific Ocean downwind of East Asia. Analysis of multiple trace elements from Dutch Harbor, Nome, and Kodiak Island showed generally higher trace metal concentrations at the northern station Nome compared to Kodiak Island further to the south, with concentrations at Dutch Harbor falling in-between. Across all sites, we find two distinct groups of correlating elements: Cr and Ni and As and Pb. We attribute these associations to possibly different source origins, whereby sources of Ni and Cr may be derived from crustal (e.g., dust) sources while As and Pb may include long-range transport of anthropogenic pollution. Neither Hg nor any of the other trace elements analyzed, consistently associated with these two groups of elements, suggesting largely diffuse source origins. Calculations of enrichment factors (i.e., elemental enrichment compared to the upper continental crust) show low enrichment for Cr and Ni which is in support of a predominantly crustal source. High enrichment factors for Pb and Se are indicative of anthropogenic or additional natural sources for these elements. For most other elements including Hg, enrichment factors fell in-between these groups showing no clear source attribution to either crustal or anthropogenic source origins.

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