Search results for "mercury"

showing 6 items of 396 documents

Mercury concentration and speciation in volcanic aquifers: measurements in Italy and Guadeloupe (Lesser Antilles)

2008

speciation volcanic aquifers total and dissolved mercury mercury cycling.
researchProduct

Investigation of Nonlinear Optical Processes in Mercury Sulfide Quantum Dots

2022

European Regional Development Fund (1.1.1.5/19/A/003), State Assignment to Higher Educational Institutions of Russian Federation (FZGU-2020-0035), Russian Foundation for Basic Research (18-29-20062). Institute of Solid State Physics, University of Latvia as the Center of Excellence acknowledges funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART2.

third-harmonic generationGeneral Chemical Engineeringnonlinear refractionPhysics::OpticsGeneral Materials Science:NATURAL SCIENCES::Physics [Research Subject Categories]quantum dotsnonlinear absorptionCondensed Matter::Mesoscopic Systems and Quantum Hall Effectquantum dots; mercury sulfide; third-harmonic generation; nonlinear refraction; nonlinear absorptionmercury sulfideNanomaterials; Volume 12; Issue 8; Pages: 1264
researchProduct

Magmatic Volatile Emissions from Ambrym and Yasur Volcanoes (Vanuatu Arc)

2008

vanuatumercury emissionSettore GEO/08 - Geochimica E Vulcanologia
researchProduct

Active volcanoes as emission point sources of atmospheric mercury

2008

ercury emissions from active volcanoes are of interest for estimating the volcanogenic contribution of Hg to the atmosphere and for monitoring volcanic activity. The global Hg flux from natural sources is poorly known and considerable uncertainty still exists with respect to the complex physical and chemical reactions taking place in the atmosphere among the various Hg forms. The environmental hazard of Hg have been widely demonstrated for its high toxicity. Previous estimates from volcanic plumes are based on limited measurements and poorly determined speciation of Hg in volcanic emissions which is crucial for making reliable estimates of volcanic Hg source strengths and for predicting atm…

volcanic mercury
researchProduct

Mercury emissions from active volcanic areas of Italy

2005

volcanic mercury vapor phaseSettore GEO/08 - Geochimica E Vulcanologia
researchProduct

MOBILITY OF MERCURY IN THE VOLCANIC/GEOTHERMAL AREA OF NISYROS (GREECE)

2017

Το καλοκαίρι του 2013, προσδιορίστηκαν οι συγκεντρώσεις υδραργύρου στο έδαφος και τον αέρα του ενεργού ηφαιστείου της Νισύρου (Ελλάδα), το οποίο ανήκει στο ενεργό ηφαιστειακό τόξο του νοτίου Αιγαίου. 102 δείγματα εδάφους συλλέχθηκαν και 2119 αναλύθηκαν για υδράργυρο με τη χρήση ψυχρού ατμού ατομικής απορρόφησης αναλυτή, σύμφωνα με τη μέθοδο ΕΡΑ 7473. Ταυτόχρονα, στα ίδια σημεία πραγματοποιήθηκαν συγκεντρώσεις υδραργύρου στον αέρα, με φορητό φασματοφωτόμετρο (Lumex RA- 915M). Οι τιμές των εδαφικών συγκεντρώσεων υδραργύρου κυμαίνονται από 0.023 έως 13.7 mg/g. Οι συγκεντρώσεις υδραργύρου στον αέρα έδειξαν υψηλότερες τιμές υποβάθρου στην περιοχή Λακκί της καλδέρας, μεταξύ 21 και 36 ng/m3 και μέ…

ατμοσφαιρικός υδράργυροςυδροθερμικά αέριαatmospheric mercurycarbon dioxidesoil mercury atmospheric mercury hydrothermal gases carbon dioxide hydrogen sulphide010501 environmental sciences010502 geochemistry & geophysics01 natural sciencesεδαφικός υδράργυροhydrothermal gasesυδρόθειοMaterials Chemistrysoil mercuryTheologyδιοξείδιο του άνθρακαhydrogen sulphideGeomorphologyGeology0105 earth and related environmental sciencesBulletin of the Geological Society of Greece
researchProduct