Fig. 3. A scatter diagram showing the 17--ethinylestradiol (EE2) equivalent concentration (ng m^-3) against the total concentration of the 16 USEPA standard polycyclic aromatic hydrocarbons (PAHs) (ng m^-3) in flue gases from combustion of different material samples and their replicates. , Barbecue charcoal; , wood treated with copper naphthenate wood preservative; , wood treated with copper naphthenate combined with pentachlorophenol wood preservatives; , untreated wood; •, meat; , kitchen waste.

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