کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6339375 | 1620379 | 2014 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Isotopic compositions of elemental carbon in smoke and ash derived from crop straw combustion
ترجمه فارسی عنوان
ترکیبات ایزوتوپ کربن عنصری در دود و خاکستر حاصل از احتراق کاه
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کلمات کلیدی
نی کرت، دود، خاکستر، کربن المان ایزوتوپ،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علم هواشناسی
چکیده انگلیسی
Six cultivars of straw for rice, maize and wheat, respectively, were burned under flaming and smoldering conditions, and carbon isotopic ratio values of elemental carbon (EC) in smoke and ash determined. The results showed that mean carbon isotopic fractionation (Î13C) between EC in flaming and smoldering smoke from rice straw, and the starting material was â2.7â° and â3.0â°, respectively. Moreover, the corresponding Î13C values for EC in flaming and smoldering smoke from wheat straw were â0.1â° and +0.4â°, respectively. Î13C for EC in the two types of smoke from maize straw were â3.4â° and +0.2â°, respectively. Î13C for EC in flaming and smoldering ash from rice straw were â1.8â° and â1.6â° in turn. Î13C for EC in flaming and smoldering ash from wheat straw were +0.9â° and +2.4â°, respectively. Additionally, the ones for EC in the two types of ash from maize straw were â1.2â° and â1.0â°, respectively. If δ13CEC values for pollutants, such as straw smoke, soot from coal and diesel-powered vehicles, and ambient PM2.5 in a region, are determined in summer and autumn, the contribution of straw burning to ambient EC is likely to be estimated with the approach of carbon isotopic mass balance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Atmospheric Environment - Volume 92, August 2014, Pages 303-308
Journal: Atmospheric Environment - Volume 92, August 2014, Pages 303-308
نویسندگان
Gang Liu, Jiuhai Li, Hui Xu, Dan Wu, Yan Liu, Hui Yang,