Volcanic ashes as a source for nitrated and oxygenated polycyclic aromatic hydrocarbon pollution
Sign Up to like & getrecommendations! Published in 2020 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-020-08130-7
Abstract: In this study, a novel, simple, and highly sensitive analytical procedure for the quantitative evaluation of oxygenated and nitrated polycyclic aromatic hydrocarbons in volcanic ash samples based on dispersive solid–liquid microextraction (DSLME) coupled to ultra… read more here.
Keywords: volcanic ashes; pollution; nitrated oxygenated; ashes source ... See more keywords
Changes in the As solid speciation during weathering of volcanic ashes: A XAS study on Patagonian ashes and Chacopampean loess
Sign Up to like & getrecommendations! Published in 2017 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2017.06.016
Abstract: Abstract X-ray absorption spectroscopy (XAS) was used to determine the oxidation state of As, local chemical coordination and the relative proportion of different As species in recent and ancient Andean volcanic ashes, as well as… read more here.
Keywords: speciation weathering; solid speciation; volcanic ashes; changes solid ... See more keywords
Rational utilization of volcanic ashes based on factors affecting their alkaline activation
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Non-crystalline Solids"
DOI: 10.1016/j.jnoncrysol.2017.02.024
Abstract: Abstract The present study evaluates the criteria that affect the characteristics of both volcanic ashes and their alkaline activated products, hence their rational utilization. To that end, five samples of volcanic ash were examined chemically,… read more here.
Keywords: volcanic ashes; amorphous phase; rational utilization; utilization volcanic ... See more keywords
FILTER-FREE LIGHT ABSORPTION MEASUREMENT OF VOLCANIC ASHES AND AMBIENT PARTICULATE MATTER USING MULTI-WAVELENGTH PHOTOACOUSTIC SPECTROSCOPY
Sign Up to like & getrecommendations! Published in 2019 at "Progress In Electromagnetics Research"
DOI: 10.2528/pier19100603
Abstract: Accurate measurement of atmospheric particulate matter (PM) absorption coefficient is highly required for study of earth climate change and for monitoring of air quality. In addition, multiwavelength measurements of PM absorption can provide information on… read more here.
Keywords: absorption; volcanic ashes; filter free; measurement ... See more keywords