Chemical composition monitoring of tropical rainwater during an atypical dry year

Mimura, Aparecida Maria Simões; Almeida, Joseane; Vaz, Fernando Antônio Simas; Oliveira, Marcone Augusto Leal de; Ferreira, Cássia de Castro Martins; Silva, J.C.J.

doi:10.1016/j.atmosres.2015.11.001

Cited by 52 publications

(29 citation statements)

References 29 publications

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“…These calculations supposed that sodium originated from sea spray and had a conservative behavior. An EF > 1 indicated a contribution of non-sea sources, which was generally the case in the literature for most of elements, except for Cl with EF ranging from 0.6 to 0.9 in precipitation from various environments such as Sahelian savannas, tropical Brazil, Benin or Puerto Rico (Singh et al, 2007;Laouali et al, 2012;Mimura et al, 2016;Akpo et al, 2015).…”

Section: Sea-salt Contributionsupporting

confidence: 54%

“…Indeed, due to the distance from the sea (600 km), the influence of sea salt in precipitation was lowered. The mean annual Na concentration in OFP was 12.3 mmol l −1 , notably lower than those measured in coastal areas (70-150 mmol l −1 , Mimura et al, 2016). Indeed, part of the Na in precipitation might be terrigenous with (partial) dissolution of soil dust components (Galy Lacaux et al, 2009).…”

Section: Sea-salt Contributionmentioning

confidence: 70%

“…The chemical elements in atmospheric precipitation originated from various sources such as continental terrigenous dust, volcanic or anthropogenic emissions and sea salts, with regional and long-range transport (McDowell et al, 1990;Laouali et al, 2012;Akpo et al, 2015;Mimura et al, 2016;Keene et al, 1986). To identify the natural sea-salt contribution, the enrichment factor (EF) of an element X may be calculated as follows (Keene et al, 1986;Akpo et al, 2015):…”

Section: Sea-salt Contributionmentioning

confidence: 99%

“…The average EF and nss concentration values for K + , Mg 2+ , Ca 2+ , Cl − and SO 4 2− (with the (X/Na) seawater ratios from Singh et al, 2007;Mimura et al, 2016) were calculated for open field precipitation and throughfalls from the Strengbach catchment and summarized in Table 1. Open field precipitation and throughfalls exhibited higher EFs for Cl, ranging from 1.05 to 1.14 and with a very large dispersion (0.1-8), and even much higher for K, Ca and SO 4 , compared with the studies noted above.…”

Section: Sea-salt Contributionmentioning

confidence: 99%

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Twenty-five year record of chemicals in open field precipitation and throughfall from a medium-altitude forest catchment (Strengbach - NE France): An obvious response to atmospheric pollution trends

Pierret

Viville

Dambrine

et al. 2019

Atmospheric Environment

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Twenty-five year record of chemicals in open field precipitation and throughfall from a medium-altitude forest catchment (Strengbach -NE France): an obvious response to atmospheric pollution trends. (2019) Atmospheric Environment, 202. (A. Probst).T 2 enhanced the capture of particles and water, accentuating the acidity of the deposition and leading to the intensification of acidification processes, nutrient leaching in soils and forest decline. In contrast, beech leaves were able to neutralize a portion of the atmospheric protons, which minimized and reduced the negative effects of acid rain. In addition, the throughfalls represented an important part of the biological cycle of trees for some elements such as K or N, as indicated by the contrasting patterns at year and long-term scales regarding the vegetation type. However, our study indicated that the influence of tree species might change over time with changes in atmospheric pollution, in precipitation regime, or in stand structure.This study outlined the importance of the long-term record of open field precipitation and throughfalls under various tree types to better evaluate the real inputs of elements to forest ecosystems and among them, essential mineral nutrients.

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Section: Sea-salt Contributionsupporting

confidence: 54%

Section: Sea-salt Contributionmentioning

confidence: 70%

Section: Sea-salt Contributionmentioning

confidence: 99%

Section: Sea-salt Contributionmentioning

confidence: 99%

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Twenty-five year record of chemicals in open field precipitation and throughfall from a medium-altitude forest catchment (Strengbach - NE France): An obvious response to atmospheric pollution trends

Pierret

Viville

Dambrine

et al. 2019

Atmospheric Environment

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“…Firstly, environmental conditions (e.g. pollutants in the immediate environment) [28][29][30] can significantly change the composition and structure of building materials. Secondly, bio-deterioration can destroy the structural materials via mechanical interaction (e.g.…”

Section: Introductionmentioning

confidence: 99%

Recent progress in instrumental techniques for architectural heritage materials

et al. 2019

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Both conservation and intervention methods must be compatible with each other and appropriate for the original building materials. Therefore, the characterization of historic building materials is indispensable for investigating chemical composition, micro-structure and morphological features to study the current condition, environmental influence and change mechanism due to natural aging or man-made decay processes. Given the great variety of chemicals which can be analyzed, complex problems related to architectural heritage materials are investigated via optimized methodologies. Among the existing techniques, optical microscopy (OM) is an inexpensive and dominating tool to obtain preliminary information on complex samples. Atomic force microscopy (AFM) can provide real three-dimensional topographies showing sample surface properties. Electron microscopes combined with energy dispersion X-ray analysis (EM-EDX) are the instruments specifically developed to acquire images of target materials at high magnification. Infrared and Raman spectroscopies are frequently used to characterize inorganic and organic compounds. Thermal analysis can rapidly and accurately measure changes in crystalline structure, dehydration and decomposition. X-ray based technologies have a wide range of applications as follows. X-ray fluorescence (XRF) is one of the most frequently used techniques for elemental analysis. X-ray diffraction (XRD) is a fast and inexpensive technique for the characterization of man-made and natural materials. X-ray photoelectron spectroscopy (XPS) is applied to quantify the valence and electronic levels of specific elements. X-ray absorption spectroscopy (XAS) is a powerful technique for detecting the electronic structure of matter. UV-visible (UV-vis) spectroscopy is also of great importance in architectural heritage, which can reveal different physicochemical mechanisms causing color. Laserinduced breakdown spectroscopy (LIBS) can effectively eliminate the pollution on the surface and detect the internal elements of the target material. Ion beam analysis can quantify trace elements with high sensitivity. Mass-based techniques are mainly applied to identify unknown organic substances at the molecular level. This review describes some classical applications of individual techniques and provides scientific support for scientists and engineers to make decisions in the context of architectural heritage.

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Impact of Phytophthora agathidicida infection on canopy and forest floor plant nutrient concentrations and fluxes in a kauri‐dominated forest

Schwendenmann

Michalzik

2021

Ecology and Evolution

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Chemical composition monitoring of tropical rainwater during an atypical dry year

Cited by 52 publications

References 29 publications

Twenty-five year record of chemicals in open field precipitation and throughfall from a medium-altitude forest catchment (Strengbach - NE France): An obvious response to atmospheric pollution trends

Twenty-five year record of chemicals in open field precipitation and throughfall from a medium-altitude forest catchment (Strengbach - NE France): An obvious response to atmospheric pollution trends

Recent progress in instrumental techniques for architectural heritage materials

Impact of Phytophthora agathidicida infection on canopy and forest floor plant nutrient concentrations and fluxes in a kauri‐dominated forest

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