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Spatial Distribution of Carbonaceous Aerosol in the Southeastern Baltic Sea Region (Event of Grass Fires)

Dudoitis V., Byčenkienė S., Plauškaitė K., Bozzetti C., Fröhlich R., Mordas G., Ulevičius V.

Acta Geophysica

2016

Vol. 64, no. 3

711--731

The aerosol chemical composition in air masses affected by large vegetation fires transported from the Kaliningrad region (Russia) and southeast regions (Belarus and Ukraine) during early spring (March 2014) was characterized at the remote background site of Preila, Lithuania. In this study, the chemical composition of the particulate matter was studied by high temporal resolution instruments, including an Aerosol Chemical Speciation Monitor (ACSM) and a seven-wavelength aethalometer. Air masses were transported from twenty to several hundred kilometres, arriving at the measurement station after approximately half a day of transport. The concentration-weighted trajectory analysis suggests that organic aerosol particles are mainly transported over the Baltic Sea and the continent (southeast of Belarus). Results show that a significant fraction of the vegetation burning organic aerosol is transformed into oxidised forms in less than a half-day. Biomass burning aerosol (BBOA) was quantified from the ACSM data using a positive matrix factorization (PMF) analysis, while its spatial distribution was evaluated using air mass clustering approach.

Analysis of organic compounds in aerosols : a review

Kotianová P., Matisová E., Puxbaum X., Lehotay J.

Chemia Analityczna

2004

Vol. 49, No. 6

833-844

In the review the organic aerosol analysis has been presented. The interest has been focused on the procedures and methods used for identification and quantification of organic compounds in the particulate matter. The common procedure for organic aerosol analysis includes several steps: sample collection on the fiber filters, extraction of organics, sample pretreatment (e.g. pre-separation, derivatisation, pre-concentration), analysis by gas chromatography. There are also alternative instrumental techniques, which allow one to overcome the limitations of the conventional capillary gas chromatography and to avoid complicated and time-consuming sample handling. They have been also discussed in this paper.

Prezentowany przegląd dotyczy analizy organicznych aerozoli. Położono nacisk na procedury i metody stosowane do identyfikacji i oznaczania ilościowego związków organicznych w rozdrobnionej materii. Procedury analizy organicznych aerozoli zawierają wiele wspólnych etapów: akumulacja próbki na włóknach filtrów, ekstrakcja związku organicznego, przygotowanie próbki (np. wstępne rozdzielenie, derywatyzacja, prekoncentracja), analiza w chromatografie gazowym. Dyskutowano również alternatywne techniki instrumentalne pozwalające na przezwyciężenie ograniczeń konwencjonalnej kapilarnej chromatografii gazowej i na uniknięcie skomplikowanego i pochłaniającego czas przygotowania próbki.