1. Development of an Integrated Platform to Assess the Physicochemical and Toxicological Properties of Wood Combustion Particulate Matter
- Author
-
Dilpreet Singh, Dereje Damte Tassew, Jordan Nelson, Marie-Cecile G. Chalbot, Ilias G. Kavouras, Philip Demokritou, and Yohannes Tesfaigzi
- Subjects
Air Pollutants ,Carbon Monoxide ,Volatile Organic Compounds ,Sugar Alcohols ,Smoke ,Carbohydrates ,Mucins ,Humans ,Particulate Matter ,General Medicine ,Toxicology ,Wood ,Transcription Factors - Abstract
Wood burning contributes to indoor and ambient particulate matter (PM) pollution and has been associated with increased morbidity and mortality. Here, we present an integrated methodology that allows to generate, sample, and characterize wood smoke derived from different moisture contents and representative combustion conditions using pine wood as a model. Flaming, smoldering, and incomplete combustion were assessed for low-moisture pine, whereas both low-moisture pine and high-moisture pine were investigated under flaming conditions. Real-time monitoring of carbon monoxide, volatile organic compounds, and aerosol number concentration/size in wood smoke was performed. The PM was size-fractionated, sampled, and characterized for elemental/organic carbon, organic functional groups, and inorganic elements. Bioactivity of PM was assessed by measuring the sterile alpha motif (SAM) pointed domain containing ETS (E-twenty-six) transcription factor (SPDEF) gene promoter activity in human embryonic kidney 293 (HEK-293T) cells, a biomarker for mucin gene expression. Findings showed that moisture content and combustion condition significantly affected the organic and inorganic elemental composition of PM
- Published
- 2023