کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4470393 1314423 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Polycyclic aromatic hydrocarbons from wood pyrolyis in charcoal production furnaces
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله
Polycyclic aromatic hydrocarbons from wood pyrolyis in charcoal production furnaces
چکیده انگلیسی

Polycyclic aromatic hydrocarbons (PAH) were measured in smoke samples from wood carbonization during charcoal production, in both particulate matter (PM) and gaseous phases. Samples were acquired using a medium-volume air sampler at 1.5 m distance from the furnace. Particle-bound PAH were collected on Fluoropore polytetrafluoroethylene filters and gas-phase PAH were collected into sorbent tubes with XAD-2 resin. PAH were extracted with dichloromethane–methanol and analyzed using gas chromatography–mass spectrometry. The results showed total emission from the furnace of 26 μg/m3 for the 16 PAH and 2.8 μg/m3 for the 10 genotoxic PAH (from fluoranthene to benzo[g,h,i]perylene). High emission of 16 PAH in the first 8 h of wood carbonization was detected (64 μg/m3; 56% of the total emission). Associated with PM, 11% of the total emission of 16 PAH (in both phases) and 60% of 10 genotoxic PAH were found. Relative ratios (for example, [Phe]/[Phe]+[Ant]) for the PAH of the same molecular weight were obtained and compared with the published data. The concentrations of benzo[a]pyrene equivalent (BaPeq) were estimated using the list of toxic equivalent factors suggested by Nisbet and LaGoy, 1992. The values of 0.30 and 0.06 mg/m3 were obtained for the total concentrations of BaPeq in PM and gaseous phase, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Research - Volume 101, Issue 3, July 2006, Pages 304–311
نویسندگان
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