Seasonal variations of PM10 — Trace elements, PAHs and Levoglucosan: Rural sugarcane growing area versus coastal urban area in Southeastern Florida, USA. Part II: Elemental concentrations

PIXE technique was applied to measurement of trace elements in total diet samples collected in Japan for estimation of their daily dietary intake. Results of PIXE analysis were compared with INAA Concentration of Cl, K, Mn and Zn by PIXE analysis well agreed with the results from NAA, while Ca, Fe and Cu showed different results between these two techniques. Preliminary data of elemental concentrations in Mate-cha, a kind of tea popular in South America, determined by ICP-AES indicated a little higher concentration of Cu than that by PIXE and much lower value than that by INAA For Zn. concentrations by PIXE and ICP well agreed to each other, while INAA gave much lower value. Japanese internal radiation doses by 137 Cs and 90 Sr were estimated to be 2.30µSv/year and 1.27µSv/year respectively as the effective dose equivalents using the daily intake data obtained for K and Ca.

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The stability of major and trace element concentrations from musts to Champagne during the production process

OENO One ◽

10.20870/oeno-one.2022.56.1.4520 ◽

2022 ◽

Vol 56 (1) ◽

pp. 29-40

Author(s):

Robin Cellier ◽

Sylvain Berail ◽

Ekaterina Epova ◽

Julien Barre ◽

Fanny Claverie ◽

...

Keyword(s):

Trace Elements ◽

Production Process ◽

Trace Element ◽

Narrow Range ◽

Grape Juice ◽

Elemental Concentrations ◽

Element Concentrations ◽

Production Processes ◽

Overall Stability ◽

The Stability

Thirty-nine Champagnes from six different brands originating from the AOC Champagne area were analyzed for major and trace element concentrations in the context of their production processes and in relation to their geographical origins. Inorganic analyses were performed on the must (i.e., grape juice) originating from different AOC areas and the final Champagne. The observed elemental concentrations displayed a very narrow range of variability. Typical concentrations observed in Champagne are expressed in mg/L for elements such as K, Ca, Mg, Na, B, Fe, A, and Mn. They are expressed in µg/L for trace elements such as Sr, Rb, Ba, Cu, Ni, Pb Cr and Li in decreasing order of concentrations. This overall homogeneity was observed for Sr and Rb in particular, which showed a very narrow range of concentrations (150 < Rb < 300 µg/L and 150 < Sr < 350 µg/L) in Champagne. The musts contained similar levels of concentration but showed slightly higher variability since they are directly influenced by the bedrock, which is quite homogenous in the AOC area being studied. Besides the homogeneity of the bedrock, the overall stability of the concentrations recorded in the samples can also be directly linked to the successive blending steps, both at the must level and prior to the final bottling. A detailed analysis of the main additives, sugar, yeast and bentonite, during the Champagne production process, did not show a major impact on the elemental signature of Champagne.

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Seasonal variations in the surface energy and CO 2 flux over a high‐rise, high‐population, residential urban area in the East Asian monsoon region

International Journal of Climatology ◽

10.1002/joc.6463 ◽

2020 ◽

Vol 40 (10) ◽

pp. 4384-4407

Author(s):

Je‐Woo Hong ◽

Sang‐Dae Lee ◽

Keunmin Lee ◽

Jinkyu Hong

Keyword(s):

Surface Energy ◽

Urban Area ◽

Seasonal Variations ◽

Asian Monsoon ◽

East Asian Monsoon ◽

East Asian ◽

High Population ◽

Monsoon Region ◽

Asian Monsoon Region ◽

High Rise

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Seasonal variations of sulfate, carbonaceous species (black carbon and polycyclic aromatic hydrocarbons), and trace elements in fine atmospheric aerosols collected at subtropical islands in the East China Sea

Journal of Geophysical Research Atmospheres ◽

10.1029/2003jd004137 ◽

2004 ◽

Vol 109 (D6) ◽

pp. n/a-n/a ◽

Cited By ~ 29

Author(s):

Naoki Kaneyasu ◽

Hideshige Takada

Keyword(s):

Trace Elements ◽

Polycyclic Aromatic Hydrocarbons ◽

Black Carbon ◽

East China Sea ◽

Aromatic Hydrocarbons ◽

Atmospheric Aerosols ◽

Seasonal Variations ◽

The East China Sea ◽

Carbonaceous Species ◽

Polycyclic Aromatic

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Physical and chemical characterization of the particulate matter suspended in aerosols from the urban area of Belgrade

Journal of the Serbian Chemical Society ◽

10.2298/jsc0911319j ◽

2009 ◽

Vol 74 (11) ◽

pp. 1319-1333 ◽

Cited By ~ 7

Author(s):

Jasminka Joksic ◽

Milena Jovasevic-Stojanovic ◽

Alena Bartonova ◽

Mirjana Radenkovic ◽

Karl-Espen Yttri ◽

...

Keyword(s):

Trace Elements ◽

Particulate Matter ◽

Urban Area ◽

Chemical Characterization ◽

Ambient Air ◽

Pollution Sources ◽

Limit Values ◽

Secondary Ions ◽

Physical And Chemical ◽

Mass Concentrations

Within this study, attempts were made to characterize the coarse and fine particulate aerosol fractions in urban area of Belgrade and define the inorganic chemical composition of the aerosol fractions. For this purpose, daily deposits of PM10, PM2.5 and PM1 aerosol fractions were collected during spring and autumn sampling periods in 2007 and analyzed for the PM mass concentrations, trace elements and secondary ions. The results obtained in the two campaigns showed average daily mass concentrations of 37 and 44 ?g/m3 for PM10, 22 and 23 ?g/m3 for PM2.5 and 15 and 17 ?g/m3 for the finest particulate matter fraction PM1 with the maximums exceeding the limit values set by the EU air quality regulations. A correlation with the gas-phase ambient air pollutants SO2, NO2 and O3 was found and is discussed. The concentrations of trace elements (Mg, Al, K, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Mo, Cd, Sb, Ba, Tl, Pb and Th) and secondary ions (NO3 -, SO4 2-, NH4 +, K+, Ca2+ and Na+) determined in the PM10, PM2.5 and PM1 aerosol fractions showed levels and distributions indicating soil and traffic-related sources as the main pollution sources. This study was conducted as the first step of PM assessment in order to point out main air pollution sources and suggest a remedy strategy specific for this region.

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