FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2564164550> ?p ?o ?g. }

• W2564164550 endingPage "58" @default.
• W2564164550 startingPage "48" @default.
• W2564164550 abstract "Real-time measurements of GEM and H2S discharged from natural and anthropogenic sources are a valuable tool to investigate the dispersion dynamics of these contaminants in air. In this study, a new approach to measure GEM and H2S concentrations in air, carried out by coupling a portable Zeeman atomic absorption spectrometer with high frequency modulation of light polarization (Lumex RA-915M) and a pulsed fluorescence gas analyzer (Thermo Scientific Model 450i), was applied to two distinct areas: (i) in the surroundings of Piancastagnaio (Siena, Central Italy), located in the eastern flanks of Mt. Amiata (a 200,000 years old volcano), where three geothermal plants are operating and whose exhaust gases are dispersed in the atmosphere after passing through the turbines and an abatement system to mitigate the environmental impact on air, and (ii) at Solfatara Crater (Campi Flegrei, Southern Italy), a volcanic apparatus characterized by intense hydrothermal activity. In 2014, seven GEM and H2S surveys were carried out in the two areas along pre-defined pathways performed by car at both the study sites. The lowest and highest recorded GEM and H2S concentrations at Piancastagnaio were up to 194 and 77 ng/m3, respectively, whilst at Solfatara Crater were up to 690 and 3392 μg/m3, respectively. Although the GEM concentrations at Piancastagnaio were lower than the limit value recommended by local regulations for outdoor environment (300 ng/m3), they were almost one order of magnitude higher than the GEM background both in Tuscany (~ 3.5 ng/m3) and Mt. Amiata (3–5 ng/m3), suggesting that the main source of GEM was likely related to the geothermal plants. At Solfatara Crater, the highest GEM values were recognized in proximity of the main fumarolic gas discharges. As far as the H2S concentrations are concerned, the guideline value of 150 μg/m3, recommended by WHO (2000), was frequently overcome in the study areas. Dot (in the surroundings of Piancastagnaio) and contour (at Solfatara Crater) maps for GEM and H2S concentrations built for each survey highlighted the important effects played by the meteorological parameters, the latter being measured by a Davis® Vantage Vue weather station. In particular, the GEM and H2S plumes were strongly affected by the wind speed and direction that were able to modify the dispersion of the two parameters in air in a matter of hours, indicating that the proposed analytical approach is able to produce a more realistic picture of the distribution of these air pollutants than that provided by using passive traps. Finally, the H2S/GEM ratio, calculated by normalizing the measured GEM and H2S concentrations to their highest values (nH2S/GEM), was used as a good proxy for the chemical-physical processes that these two gas species can suffer once emitted in the air. In particular, H2S resulted to be more affected by secondary processes than GEM, possibly related to photochemical oxidation reactions." @default.
• W2564164550 created "2017-01-06" @default.
• W2564164550 creator A5013359159 @default.
• W2564164550 creator A5020265649 @default.
• W2564164550 creator A5032258603 @default.
• W2564164550 creator A5037284647 @default.
• W2564164550 creator A5040436822 @default.
• W2564164550 creator A5078177497 @default.
• W2564164550 creator A5089189296 @default.
• W2564164550 date "2017-04-01" @default.
• W2564164550 modified "2023-09-30" @default.
• W2564164550 title "A new approach for the measurement of gaseous elemental mercury (GEM) and H 2 S in air from anthropogenic and natural sources: Examples from Mt. Amiata (Siena, Central Italy) and Solfatara Crater (Campi Flegrei, Southern Italy)" @default.
• W2564164550 cites W1876973471 @default.
• W2564164550 cites W1964037709 @default.
• W2564164550 cites W1964641506 @default.
• W2564164550 cites W1965703309 @default.
• W2564164550 cites W1967398887 @default.
• W2564164550 cites W1967900895 @default.
• W2564164550 cites W1971967747 @default.
• W2564164550 cites W1978139227 @default.
• W2564164550 cites W1981121449 @default.
• W2564164550 cites W1983448574 @default.
• W2564164550 cites W1986816126 @default.
• W2564164550 cites W1988729840 @default.
• W2564164550 cites W1992878642 @default.
• W2564164550 cites W1994710544 @default.
• W2564164550 cites W2000971658 @default.
• W2564164550 cites W2002414526 @default.
• W2564164550 cites W2002499895 @default.
• W2564164550 cites W2006530584 @default.
• W2564164550 cites W2007188793 @default.
• W2564164550 cites W2012080385 @default.
• W2564164550 cites W2012121450 @default.
• W2564164550 cites W2013481157 @default.
• W2564164550 cites W2016476180 @default.
• W2564164550 cites W2016654225 @default.
• W2564164550 cites W2016715641 @default.
• W2564164550 cites W2020828844 @default.
• W2564164550 cites W2022503572 @default.
• W2564164550 cites W2028426169 @default.
• W2564164550 cites W2030418110 @default.
• W2564164550 cites W2033042200 @default.
• W2564164550 cites W2033502042 @default.
• W2564164550 cites W2034480224 @default.
• W2564164550 cites W2035426897 @default.
• W2564164550 cites W2037355896 @default.
• W2564164550 cites W2038120193 @default.
• W2564164550 cites W2038652463 @default.
• W2564164550 cites W2039611873 @default.
• W2564164550 cites W2039840997 @default.
• W2564164550 cites W2040205527 @default.
• W2564164550 cites W2041838506 @default.
• W2564164550 cites W2041852140 @default.
• W2564164550 cites W2042149676 @default.
• W2564164550 cites W2042291728 @default.
• W2564164550 cites W2043836871 @default.
• W2564164550 cites W2044563541 @default.
• W2564164550 cites W2052876250 @default.
• W2564164550 cites W2053080100 @default.
• W2564164550 cites W2063058870 @default.
• W2564164550 cites W2063672192 @default.
• W2564164550 cites W2066227596 @default.
• W2564164550 cites W2066939967 @default.
• W2564164550 cites W2071721366 @default.
• W2564164550 cites W2076095595 @default.
• W2564164550 cites W2076164656 @default.
• W2564164550 cites W2079512923 @default.
• W2564164550 cites W2080302770 @default.
• W2564164550 cites W2080568856 @default.
• W2564164550 cites W2084341057 @default.
• W2564164550 cites W2085138176 @default.
• W2564164550 cites W2085311334 @default.
• W2564164550 cites W2088889026 @default.
• W2564164550 cites W2089275011 @default.
• W2564164550 cites W2112057463 @default.
• W2564164550 cites W2112617685 @default.
• W2564164550 cites W2116061094 @default.
• W2564164550 cites W2124088034 @default.
• W2564164550 cites W2142715455 @default.
• W2564164550 cites W2142959160 @default.
• W2564164550 cites W2145881899 @default.
• W2564164550 cites W2147789113 @default.
• W2564164550 cites W2149845415 @default.
• W2564164550 cites W2156967038 @default.
• W2564164550 cites W2488026258 @default.
• W2564164550 cites W2503860182 @default.
• W2564164550 cites W2520934483 @default.
• W2564164550 doi "https://doi.org/10.1016/j.gexplo.2016.12.017" @default.
• W2564164550 hasPublicationYear "2017" @default.
• W2564164550 type Work @default.
• W2564164550 sameAs 2564164550 @default.
• W2564164550 citedByCount "24" @default.
• W2564164550 countsByYear W25641645502017 @default.
• W2564164550 countsByYear W25641645502018 @default.
• W2564164550 countsByYear W25641645502019 @default.
• W2564164550 countsByYear W25641645502020 @default.
• W2564164550 countsByYear W25641645502021 @default.
• W2564164550 countsByYear W25641645502022 @default.

• next