scholarly journals Stable Lead Isotopic Ratios as Indicator of Urban Geochemical Processes

2021 ◽  
Vol 906 (1) ◽  
pp. 012098
Author(s):  
Nadezhda Reutova ◽  
Andrian Seleznev ◽  
Ilia Yarmoshenko ◽  
Maria Chervyakovskaya ◽  
Maria Streletskaya
Keyword(s):  
Soil Pollution ◽  
Isotope Ratios ◽  
Isotopic Ratios ◽  
Geochemical Processes ◽  
Residential Areas ◽  
Pb Isotope ◽  
Geochemical Conditions ◽  
Fingerprinting Technique ◽  
Multistory Buildings ◽  
Lead Isotopic Ratios

Abstract The study is aimed to apply the Pb isotope fingerprinting technique for tracing pollution of urban surface deposited sediment (USDS). USDS reflect changes in the geochemical conditions occurring in the environment. USDS samples were collected in residential areas with multistory buildings in Russian cities: Magnitogorsk, Nizhny Tagil, Tyumen, Ufa, and Chelyabinsk. Elements concentrations and stable Pb isotopic ratios were measured in the samples. The reconstruction of the initial geochemical baseline (IGB) relationship between potentially harmful element (PHE) Pb and conservative lithogenic element (CE) Fe was carried out for USDS sample populations in the cities. The IGB reconstruction divided USDS sample populations into the groups of ‘polluted’ and ‘unpolluted’ with Pb samples. Analysis of elements concentrations and Pb isotope ratios in the groups of USDS samples showed different trends in altering geochemical conditions for metals in the surveyed cities. The USDS is characterized by a decrease in the isotope ratios of 206Pb/204Pb and 208Pb/204Pb as a result of soil pollution by vehicles during the period of using leaded gasoline.

Interpretation of Pb isotope compositions of galenas from the Midland Valley of Scotland and adjacent regions

1984 ◽  
Vol 75 (2) ◽  
pp. 85-96 ◽  
Author(s):  
John Parnell ◽  
Ian Swainbank
Keyword(s):  
Lower Devonian ◽  
Lead Isotope ◽  
Sedimentary Rocks ◽  
Isotope Ratios ◽  
Igneous Rocks ◽  
Pb Isotope ◽  
Lower Carboniferous ◽  
Granite Magma ◽  
Lower Palaeozoic ◽  
Caledonian Granite

ABSTRACTThe lead isotope compositions of 61 galenas from central and southern Scotland vary markedly between different regions. Most galenas from the southern Grampian Highlands yield isotope ratios (206Pb/204Pb 17·77 ± 0·25, 207Pb/204Pb 15·47 ± 0·05, 208Pb/204Pb 37·63 ± 0·26) less radiogenic than those from Midland Valley galenas (18·22 ± 0·12, 15·55 ± 0·05, 38·13 ± 0·14) whilst galena lead from the Southern Uplands (18·28 ± 0·12, 15·56 ± 0·03, 38·21 ± 0·18) is more radiogenic than that from the southern Midland Valley (18·12 ± 0·06, 15·52 ± 0·02, 38·06 ±0·10). The change in isotopie composition across the Highland Boundary fault reflects the presence or absence of Dalradian rocks which included a magmatic component of lead. Galenas from the Dalradian sequence in Islay, where igneous rocks are lacking, have a composition (18·14±0·04, 15·51±0·01, 37·90±0·02) more like Midland Valley galenas. In the Southern Uplands, galenas yield lead isotope ratios similar to those of feldspars from Caledonian granite (18·30 ± 0·14, 15·57 ± 0·04, 37·96 ± 0·15) analysed by Blaxland et al. (1979). The similar ratios reflect the incorporation of Lower Palaeozoic sedimentary rocks into the granite magma, rather than a granitic source for the mineralisation. The granites were then thermal-structural foci for later mineralising fluids which leached metals from the surrounding rocks. Within the Midland Valley, galenas hosted in Lower Devonian-Lower Carboniferous lavas are notably more radiogenic (18·31 ±0·12, 15·58 ± 0·06, 38·20 ± 0·16) than sediment-hosted galenas (18·14 ± 0·07, 15·52 ± 0·02, 38·08 ± 0·10). The Devonian lavas at least may have inherited lead from subducted (? Lower Palaeozoic) rock incorporated in the primary magma.

Determination of lead isotopic ratios in Greenland and Antarctic snow and ice at picogram per gram concentrations

1995 ◽  
Vol 311 (2) ◽  
pp. 141-151 ◽  
Author(s):  
W. Chisholm ◽  
K.J.R. Rosman ◽  
C.F. Boutron ◽  
J.P. Candelone ◽  
S. Hong
Keyword(s):  
Isotopic Ratios ◽  
Antarctic Snow ◽  
Lead Isotopic Ratios ◽  
Snow And Ice

Pb isotope ratios of lake sediments in West Greenland: inferences on pollution sources

2001 ◽  
Vol 35 (27) ◽  
pp. 4675-4685 ◽  
Author(s):  
Richard Bindler ◽  
Ingemar Renberg ◽  
N. John Anderson ◽  
Peter G. Appleby ◽  
Ove Emteryd ◽  
...  
Keyword(s):  
Lake Sediments ◽  
Isotope Ratios ◽  
Pollution Sources ◽  
Pb Isotope ◽  
West Greenland

Geochemical sources of metal contamination in a coal mining area in Chhattisgarh, India using lead isotopic ratios

Chemosphere ◽  
2018 ◽  
Vol 197 ◽  
pp. 152-164 ◽  
Author(s):  
Avijit Das ◽  
Subhra Sarita Patel ◽  
Rajeev Kumar ◽  
K.V.S.S. Krishna ◽  
Saikat Dutta ◽  
...  
Keyword(s):  
Coal Mining ◽  
Metal Contamination ◽  
Mining Area ◽  
Isotopic Ratios ◽  
Coal Mining Area ◽  
Lead Isotopic Ratios

Benchmarking source specific isotopic ratios of levoglucosan to better constrain the contribution of domestic heating to the air pollution

2021 ◽  
Author(s):  
Nana Khundadze ◽  
Christoph Küppers ◽  
Beatrix Kammer ◽  
Andrius Garbaras ◽  
Agne Masalaite ◽  
...  
Keyword(s):  
Aerosol Particles ◽  
Carbon Isotopic Composition ◽  
Isotope Ratios ◽  
Total Carbon ◽  
Isotopic Ratios ◽  
Isotopic Age ◽  
C3 Plant ◽  
Domestic Heating ◽  
Plant Samples ◽  
The Impact

<p>Due to the potential to fingerprint emissions, carbon stable isotopes are considered a powerful tool to get insight into sources of air pollutants and to study their atmospheric life cycle. Including the independent isotopic knowledge into chemical models, not only concentration but also isotope ratios can be predicted. This provides the possibility to differentiate the impact of source strength from that of chemical reactions in the atmosphere. In a recent study comparing Lagrangian-particle-dispersion-simulations with ambient observations, Betancourt et al. [1] (ACPD2020) found that the observed isotopic age of levoglucosan, a biomass burning tracer, agrees well with the isotopic age derived from back-plumes analyses. This showed that the wintertime aerosol burden from domestic heating observed in residential areas of North-Rheine-Westphalia, Germany, is of local or regional origin. Error analyses though indicated that the largest source of uncertainty was the limited information on emission isotope ratios.</p><p>In this work, the stable isotope ratios of levoglucosan in aerosol particles emitted from the combustion of 18 different biomass fuels typically used for domestic heating in Western and Eastern Europe (soft and hard woods, brown coals and corn cobs, respectively) were measured by Thermal Desorption- Two-Dimensional Gas Chromatographie- Isotope Ratio Mass Spectrometry (TD-2DGC-IRMS). Additionally to the compound specific measurements, isotopic ratios of total carbon in the fuel parent material, in the precursor cellulose, as well as in sampled aerosol particles were determined.</p><p>Levoglucosan δ<sup>13</sup>C was found to vary between -23.6 and -21.7‰ for the C3 plant samples, showing good agreement with Sang et al [2] (EST2012). The brown coal and the C4 plant samples were isotopically heavier, showing isotopic ratios in the range of -21,1 to -18.6‰ and -12.9‰, respectively. In this presentation, the observed levoglucosan δ<sup>13</sup>C will be discussed with respect to the carbon isotopic composition of the parent materials. The potential of using compound specific δ<sup>13</sup>C measurements of levoglucosan for improved source apportionment will be addressed.</p><p>References:</p>

Intershield geochemical differences among Hawaiian volcanoes: implications for source compositions, melting process and magma ascent paths

1993 ◽  
Vol 342 (1663) ◽  
pp. 121-136 ◽  
Keyword(s):  
Melting Process ◽  
Isotope Ratios ◽  
Magma Ascent ◽  
Small Radius ◽  
Element Abundance ◽  
Isotopic Ratios ◽  
Large Radius ◽  
Major Element Composition ◽  
Mauna Loa ◽  
Melt Segregation

As Hawaiian volcanoes develop, their lavas systematically change in composition and isotopic ratios of Sr, Nd and Pb. These trends provide important constraints for understanding plume-related volcanism as a volcano migrates away from the hotspot. There are also geochemical differences between Hawaiian shields. In particular, lavas from adjacent shields such as Kilauea and Mauna Loa on Hawaii and Koolau and Waianae on Oahu have significant differences in abundances of some major and incompatible elements and isotopic ratios of Sr, Nd and Pb. Some incompatible element abundance ratios, such as Zr/Nb and Sr/Nb, are correlated with intershield differences in Sr and Nd isotope ratios, but these isotopic ratios are not correlated with intershield differences in major element composition, or even parent/daughter abundance ratios such as Rb/Sr and Sm/Nd. Moreover, at Kilauea and Mauna Loa the intershield differences have apparently persisted for a relatively long time, perhaps 100 ka. These intershield geochemical differences provide important constraints on plume volcanism. Specifically, (i) each volcano must have distinct magma ascent paths from the region of melt segregation; (ii) the 25-50 km distance between adjacent, but geochemically distinct, shields requires that the sources vary on a similar scale, and that the melt production region is similarly restricted. The absence of correlations between lava compositions and radiogenic isotope ratios provides evidence for significant differences in melting process such as each shield forming by a different mean extent of melting with melt segregation at different mean pressures. Two types of models are consistent with the intershield geochemical differences: (i) a relatively large radius, ca . 40 km, plume conduit with a systematic spatial distribution of geochemical heterogeneities; or (ii) a small radius, less than 20 km, plume conduit composed of geochemically distinct diapirs. Because relatively small radius diapirs of limited vertical extent are too small to create the large Hawaiian shields, a possible alternative is a continuous conduit containing solitary waves which transport geochemically distinct packets of material.

scholarly journals Analysis of lead isotopic ratios of glass objects with the aim of comparing them for forensic purposes

Talanta ◽  
2013 ◽  
Vol 105 ◽  
pp. 158-166 ◽  
Author(s):  
Agnieszka Martyna ◽  
Knut-Endre Sjastad ◽  
Grzegorz Zadora ◽  
Daniel Ramos
Keyword(s):  
Isotopic Ratios ◽  
Lead Isotopic Ratios

scholarly journals Study of Pb sources by Pb isotope ratios in the airborne PM10 of Zaragoza, Spain

2009 ◽  
Vol 11 (11) ◽  
pp. 2052 ◽  
Author(s):  
María Teresa de la Cruz ◽  
Francisco Laborda ◽  
María Soledad Callén ◽  
José Manuel López ◽  
Ana María Mastral
Keyword(s):  
Isotope Ratios ◽  
Pb Isotope
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