Polycyclic aromatic hydrocarbons in dust emitted from stoker - fired boilers.
In the present paper, results of investigations of Polycyclic Aromatic Hydrocarbons (PAHs) in granulometric fractions of dust, emitted from 9 hard coal fired mechanic stoker boilers, are presented. Exhaust gases were sampled with a Mark III dust sampler. Extracts derived from the dust fractions were analysed by using Gas Chromatography (GC). The 16 PAHs, total PAHs and equivalent benzo(a)pyrene (B(a)P) were determined. Results of measurements averaged over all examined boilers are presented as concentrations, contents and contributions of investigated hydrocarbons to particular standardised fractions of dust classified according to particle sizes. Distributions of PAHs and their profiles in the dust fractions were determined. The emission factors for B(a)P and Toxic Equivalent B(a)P (TE B(a)P) were determined and proved to be several times higher than for pulverised fuel fired boilers. In the emitted dust, 73% of the total PAHs most hazardous to human health are comprised in PM1.
Kozielska
B
B
The Silesian University of Technology, Faculty of Energy and Environmental Engineering, Department of Air Protection, 2 Akademicka St., 44-101 Gliwice, Poland.
Konieczynski
J
J
D000393:Air Pollutants / Q000032:analysis*; D002244:Carbon / Q000032:analysis*; D003031:Coal; D060729:Coal Ash; D004784:Environmental Monitoring; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis*; D011044:Poland; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D011210:Power Plants
D000393:Air Pollutants; D003031:Coal; D060729:Coal Ash; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons; D002244:Carbon