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Table 1 Chemicals detected in wood smoke in laboratory studies

From: Cardiovascular health impacts of wildfire smoke exposure

Pollutant category

Chemicals found in the wood smoke

Note

Particulate matter

PM1, PM2.5, PM10

The mass of PM ranges from tens to thousands in μg/m3 a

Gases

CO, NO, NO2, SO2

CO: 2.7–1385 ppm a

n-Alkane compounds

Pentadecane, Hexadecane, Octadecane, Nonadecane, Docosane, Tricosane, Tetracosane, Pentacosane, Heptacosane

% n-Alkane in PM mass: 0–0.9% a

Polyaromatic compounds

Phenanthrene, Anthracene, Methylphenanthrene, Methylanthracene, Fluoranthene, Pyrene, Benz(a)fluorene, Benz(b)fluorene, Methylchrysene, Naphthalene, Retene, Chrysene,

% PAH compounds in PM mass: 0–0.5% a

Methoxyphenol compounds

Guaiacol, Methoxymethyl phenol, Ethylguaiacol, Eugenol, Propylguaiacol, Vanillin, Isoeugenol, 3,5-Dimethoxyphenol, Syringaldehyde, Acetosyringone, Coniferyl aldehyde

% Methoxyphenol in PM mass: 0.1–6.5% a

Levoglucosan

Levoglucosan

% Levoglucosan in PM mass: 0.9–12.6% a

Inorganic constituents

Ca, Cd, Cr, Cu, K, Mg, Na, Pb, Si, Zn, Al, Ba, Fe, Mn, NH4+, PO43−, Cl−, NO3−, SO42−,

–

  1. Note: Representative chemicals and their values were adapted and summarized from published studies ([17, 57, 58, 83, 90, 100, 106]). Note: a indicated the detected range dependent on variations in wood types (e.g. red oak, birch, eucalyptus, peat, etc) and combustion conditions (e.g., incomplete versus complete)