Gaisa aerosola daļiņu izmēra, morfoloģiskās struktūras un satura noteikšana
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Latvijas Universitāte
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Abstract
Darbā apskatītas apkārtējā gaisa aerosolu daļiņu sastāvs un morfoloģija, to īpašības,
sagatavošana analīzei priekš mikroskopijas metodēm. Veikta gaisa aerosolu daļiņu
frakcionēta atdalīšana un ievākšana uz membrānu filtriem Rīgas pilsētas centrā. Ar elektronu
un optiskās mikroskopijas metodēm eksperimentāli izpētīta aerosolu daļiņu morfoloģija un
skaits uz membrānu filtriem. Ar elektrotermālo atomabsorbcijas spektrometriju un induktīvi
saistītās plazmas masspektrometriju noteiktas dažu metālisko elementu masas koncentrācijas
gaisa aerosolu daļiņu paraugos.
GAISA PIESĀRŅOJUMS, METĀLISKIE ELEMENTI, BINOKULĀRAIS
MIKROSKOPS, IMPAKTORI, OPTISKĀ MIKROSKOPIJA, ELEKTRONU
MIKROSKOPIJA, GAISA AEROSOLA DAĻIŅAS, MEMBRĀNU FILTRI, KVĒPI,
LĪDOJOŠIE PELNI
In this paper composition, properties, morphology and preparation for microscopic analysis of particulate matter were described. Fractional separation and sampling of airborne particulate matter on membrane filters were carried out in Riga city centre. Composition and morphology of particulate matter were determinated experimentally by optical and electron microscopy methods. Some of the metals mass concentrations in aerosol were identified using electrothermal atomic absorption spectrometry and inductively coupled plasma mass spectrometry methods. AIR POLLUTION, METALLIC ELEMENTS, BINOCULAR MICROSCOPY, IMPACTORS, OPTICAL MICROSCOPY, ELECTRON MICROSCOPY, PARTICULATE MATTER, MEMBRANE FILTERS, SOOT, FLY ASHES
In this paper composition, properties, morphology and preparation for microscopic analysis of particulate matter were described. Fractional separation and sampling of airborne particulate matter on membrane filters were carried out in Riga city centre. Composition and morphology of particulate matter were determinated experimentally by optical and electron microscopy methods. Some of the metals mass concentrations in aerosol were identified using electrothermal atomic absorption spectrometry and inductively coupled plasma mass spectrometry methods. AIR POLLUTION, METALLIC ELEMENTS, BINOCULAR MICROSCOPY, IMPACTORS, OPTICAL MICROSCOPY, ELECTRON MICROSCOPY, PARTICULATE MATTER, MEMBRANE FILTERS, SOOT, FLY ASHES