title: Emission factors of polycyclic aromatic hydrocarbons from domestic coal combustion in China.
abstract: Domestic coal stove is widely used in China, especially for countryside during heating period of winter, and polycyclic aromatic hydrocarbons (PAHs) are important in flue gas of the stove. By using dilution tunnel system, samples of both gaseous and particulate phases from domestic coal combustion were collected and 18 PAH species were analyzed by GC-MS. The average emission factors of total 18 PAH species was 171.73 mg/kg, ranging from 140.75 to 229.11 mg/kg for bituminous coals, while was 93.98 mg/kg, ranging from 58.48 to 129.47 mg/kg for anthracite coals. PAHs in gaseous phases occupied 95% of the total of PAHs emission of coal combustion. In particulate phase, 3-ring and 4-ring PAHs were the main components, accounting for 80% of the total particulate PAHs. The total toxicity potency evaluated by benzo[a]pyrene-equivalent carcinogenic power, sum of 7 carcinogenic PAH components and 2,3,7,8-tetrachlorodibenzodioxin had a similar tendency. And as a result, the toxic potential of bituminous coal was higher than that of anthracite coal. Efficient emission control should be conducted to reduce PAH emissions in order to protect ecosystem and human health.
authors.forename: Chunmei
authors.initials: C
authors.lastname: Geng
authors.forename: Jianhua
authors.initials: J
authors.lastname: Chen
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Yang
authors.forename: Lihong
authors.initials: L
authors.lastname: Ren
authors.forename: Baohui
authors.initials: B
authors.lastname: Yin
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Liu
authors.forename: Zhipeng
authors.initials: Z
authors.lastname: Bai
mesh_terms: D002681:China; D003031:Coal; D005740:Gases / Q000032:analysis* / Q000633:toxicity; D052638:Particulate Matter / Q000032:analysis* / Q000633:toxicity; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis* / Q000633:toxicity
chemical_list: D003031:Coal; D005740:Gases; D052638:Particulate Matter; D011084:Polycyclic Aromatic Hydrocarbons