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http://dx.doi.org/10.5338/KJEA.2004.23.2.099

The Impacts of Barley Straw Burning Having Different Moisture Contents and Harvesting Timing on Air Pollutant Emission  

Ko, Jee-Yeon (National Institute of Crop Science, Yeongnam Agricultural Research Institute, Plant Environment Division)
Kang, Hang-Won (National Institute of Crop Science, Yeongnam Agricultural Research Institute, Plant Environment Division)
Lee, Jae-Sang (National Institute of Crop Science, Yeongnam Agricultural Research Institute, Plant Environment Division)
Kim, Chun-Song (National Institute of Crop Science, Yeongnam Agricultural Research Institute, Plant Environment Division)
Park, Seong-Tae (National Institute of Crop Science, Yeongnam Agricultural Research Institute, Plant Environment Division)
Kim, Bok-Jin (Yeongnam University College of Natrual Resources)
Publication Information
Korean Journal of Environmental Agriculture / v.23, no.2, 2004 , pp. 99-103 More about this Journal
Abstract
This study was carried out to determine impacts of burning of barley straw produced from rice-barley double cropping paddy field on air quality by investigating emissions of greenhouse gases ($CO_2$, $CH_4$ and $N_2O$), air pollution gases (CO, $SO_2$, $H_2S$, $NH_3$ and NO) and particulate matters (PM 10 and PM 2.5). When the barley straw at a rate of 4.5 t/ha was burned at open status, the emitted GHGs amounts were $CO_2$ 376.8 kg/l0a, $CH_4$ 1.56 and $N_2O$ 0.06. The amount of CO emission was the largest among air pollution gases. These results showed that the range of $45{\sim}55%$ of total C in barley straw was emitted as $CO_2-C$, followed by CO-C ($6.4{\sim}5.9%$) and $CH_4-C$ ($0.5{\sim}0.7%$). As far as moisture content in barley straw is concerned, the higher moisture content that the barley straw contains, the larger amount of air pollution gases and the higher portion of PM 2.5 in PM 10 were emitted when it burned. In case of harvesting time of barley straw, emission amounts of greenhouse, air pollution gases and PM 2.5 portion in PM 10 had tendency to increase when earlier harvested barley straw was burned.
Keywords
barley straw burning; air pollution gas; greenhouse gas; PM 10; PM 2.5;
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