Emission of polycyclic aromatic hydrocarbons and particulate matter from domestic combustion of selected fuels
Emission of polycyclic aromatic hydrocarbons and particulate matter from domestic combustion of selected fuels
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DOI：
10.1021/es980853f
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发表时间：
1999-08-15
影响因子：
11.4
通讯作者：
Dung, NT
中科院分区：
文献类型：
--
作者：
Oanh, NTK;Reutergårdh, LB;Dung, NT
对东南亚地区桉树木棒露天燃烧、木炭炉和煤球炉三种常见燃料炉系统的多环芳烃（PAH）和颗粒物（PM）排放进行了监测。从通风柜烟道等速采集烟样，用HPLC/FLD和UV分析多环芳烃。以能量为基础的排放因子（mg/MJ）、排放率和烟气中污染物浓度衡量，燃烧木材产生的18种多环芳烃和11种遗传毒性多环芳烃的排放量最高，而木炭产生的排放量最少。在燃料重量的基础上，木质燃料产生的18种多环芳烃（110毫克/千克）的排放系数与煤块几乎相同，但是遗传毒性多环芳烃的两倍，分别为13.4毫克/千克和6.5毫克/千克。然而，木材燃料的高燃烧速率导致最高的总18多环芳烃排放率（208 mg/h）和浓度（957 μ g/m(3)），导致有毒污染物的高暴露。木材、木炭和煤块的PM排放系数（毫克/公斤）分别为51,36,7。多环芳烃在PM中所占比例最大的是木材燃料燃烧产生的烟雾。一个2-3人家庭的平均每日烹饪释放出40毫克的遗传毒性多环芳烃，来自木质燃料，来自煤块9毫克，来自木炭燃烧3.3毫克。在不考虑木炭生产过程中污染物排放的情况下，木炭燃料炉被确定为最清洁的系统。
Polycyclic aromatic hydrocarbons (PAH) and particulate matter(PM) emission were monitored for three common fuel-stove systems in Southeast Asia, namely, Eucalyptus wood sticks open burning, charcoal stove, and coal briquette stove. Smoke samples were taken isokinetically from the flue pipe of a hood and analyzed for PAH using HPLC/FLD and UV. Wood fuel burning produced the highest emission of 18 PAH and 11 genotoxic PAH in terms of the emission factor on energy basis (mg/MJ), emission rate, and pollutant concentration in smoke, while the charcoal produced the least. On a fuel-weight basis, wood fuel produced almost the same emission factor of the total of 18 PAH (110 mg/kg) as coal briquettes but twice as much as genotoxic PAH, 13.4 vs 6.5 mg/kg. The wood fuel high burning rate, however, resulted in the highest total 18 PAH emission rate (208 mg/h) and concentration (957 mu g/m(3)), leading to a high exposure to toxic pollutants. The PM emission factor in milligrams per kilogram of fuel was 51, 36, and 7 for the wood, charcoal, and coal briquettes, respectively. The largest fraction of PAH in PM was found for wood fuel burning smoke. The average daily cooking of a household of 2-3 releases 40 mg of genotoxic PAH from wood fuel, 9 mg from coal briquettes, and 3.3 mg from charcoal burning. The charcoal fuel stove was identified as the cleanest system, not taking into account the pollutant emission during charcoal production.