• 수산해양기술연구
• /
• 제53권1호
• /
• pp.77-88
• /
• 2017

The concern on the greenhouse gas emissions is increasing globally. Especially, the greenhouse gas emission from fisheries is an important issue due to Cancun Agreements Mexico in 1992 and the Kyoto protocol in 2005. Furthermore, the Korean government has a plan to reduce the GHG emissions as 5.2% compared to the BAU in fisheries until 2020. However, the investigation on the GHG emissions from Korean fisheries has not been executed much. Therefore, the quantitative analysis of GHG emissions from Korean fishery industry is needed as the first step to find a relevant way to reduce GHG emissions from fisheries. The purpose of this research is to investigate which degree of GHG emitted from the major coastal fisheries such as coastal gillnet fishery, coastal dual purpose fishery, coastal pots fishery and coastal small scale stow net fishery. Here, we calculated the GHG emission from the fisheries using the LCA (Life Cycle Assessment) method. The system boundary and input parameters for each process level are defined for LCA analysis. The fuel use coefficients of the fisheries are also calculated according to the fuel type. The GHG emissions from sea activities by the fisheries will be dealt with. Furthermore, the GHG emissions for the unit weight of fishes are also calculated with consideration to the different consuming areas. The results will be helpful to understand the circumstances of GHG emissions from Korean fisheries.

• 대한건축학회논문집:구조계
• /
• 제35권7호
• /
• pp.187-195
• /
• 2019

In December 2015, The Paris Agreement was adopted to undertake ambitious efforts to combat climate change. Korean government announced its goal of reducing the country's greenhouse gas emissions by up to 37% below business as usual projections by 2030 in 2015. The purpose of this study was to set up the calculation methodology of GHG emission($CO_{2e}$) in building sector and to estimate the annual GHG emission in building sector based on national energy consumption statistic. The GHG emission from buildings is about 135.8 million ton $CO_{2e}$ as of 2015, taking up about 19.6% of Korea's entire emission and is about 144.7 million ton $CO_{2e}$ in 2017. The GHG emission of building sector is increasing at annual rate of 2.0% from 2001 to 2017. The GHG emission from electricity consumption in buildings is 91.8 million ton $CO_{2e}$ in 2017, is the highest $CO_2$ emission by energy source. The results show that the intensity of GHG emission of residential building sector is $40.6kg-CO_{2e}/m^2{\cdot}yr$ and that of commercial building sector is $68.4kg-CO_{2e}/m^2{\cdot}yr$.

• 한국축산시설환경학회지
• /
• 제18권2호
• /
• pp.75-84
• /
• 2012

현재 우리나라 축산부문의 온실가스 배출량 계산은 1996년에 출판된 '1996년 IPCC 국가 온실가스 인벤토리 지침서 (1996 IPCC지침)'에 따라 계산하고 있으며 그 배출량 데이터는 국가 인벤토리 보고서에 사용하고 있다. 하지만 새로운 지침서, '2006년 IPCC 국가 온실가스 인벤토리 지침서 (2006 IPCC 지침)'가 2006년에 출판되었기 때문에 온실가스 배출량 계산을 위한 새로운 지침서를 적용하기 위한 준비가 필요하다. 본 연구에서는 축산에서 1996 IPCC 지침과 2006 IPCC 지침을 비교하였다. 또한 2000년부터 2008년 사이의 온실가스 배출량을 Tier 1 방법으로 계산하였다. 2006 IPCC 지침으로 계산한 온실가스 배출량은 1996 IPCC 지침을 이용할 때와 비교하여 1.27~1.33배 더 많았다. 이는 배출계수의 차이에 의한 것으로 나타났다. 국가 온실가스 인벤토리의 불확실성을 감소시키기 위해 더 많은 연구가 필요하다.

• 수산해양기술연구
• /
• 제57권2호
• /
• pp.149-161
• /
• 2021

The concern on the greenhouse gas emission is strongly increasing globally. In fishery industry section, the greenhouse gas emissions are an important issue according to The Paris Climate Change Accord in 2015. The Korean government has a plan to reduce the GHG emissions as 4.8% compared to the BAU in fisheries until 2020. Furthermore, the Korean government has also declared to achieve the carbon neutrality in 2050 at the Climate Adaptation Summit 2021. However, the investigation on the GHG emissions from Korean fisheries did not carry out extensively. Most studies on GHG emissions from Korean fishery have dealt with the GHG emissions by fishery classification so far. However, follow-up studies related to GHG emissions from fisheries need to evaluate the GHG emission level by species to prepare the adoption of environmental labels and declarations (ISO 14020). The purpose of this research is to investigate which degree of GHG emitted to produce the species (hairtail and small yellow croaker) from various fisheries. Here, we calculated the GHG emission to produce the species from the fisheries using the Life Cycle Assessment method. The system boundary and input parameters for each process level are defined for the LCA analysis. The fuel use coefficients of the fisheries for the species are also calculated according to the fuel type. The GHG emissions from sea activities by the fisheries will be dealt with. Furthermore, the GHG emissions for producing the unit weight species and annual production are calculated by fishery classification. The results will be helpful to understand the circumstances of GHG emissions from Korean fisheries.

• 한국대기환경학회지
• /
• 제23권2호
• /
• pp.225-241
• /
• 2007

A closed flux chamber system was used for measuring major greenhouse gas (GHG) emission from tideland and/or wetland soils in estuarine area at Saemankum, Kunsan in southwestern Korea during from months of February to June 2006. Hourly averaged GHG soil emissions were measured two to three times a day during the ebb tide hours only. Site soils were analyzed for soil parameters (temperature, pH, total organic contents, N and C contents in soil) in the laboratory. Soil GHG fluxes were calculated based on the GHG concentration rate of change measured inside a closed chamber The analysis of GHG was conducted by using a Gas Chromatography (equipped with ECD/FID) at laboratory. Changes of daily, monthly GHGs' fluxes were examined. The relationships between the GHG emissions and soil chemical contents were also scrutinized with respect to gas production and consumption mechanism in the soil. Soil pH was pH $7.47{\pm}0.49$ in average over the experimental period. Organic matter contents in sample soil was $6.64{\pm}4.98\;g/kg$, and it shows relatively lower contents than those in agricultural soils in Kunsan area. Resulting from the soil chemistry data, soil nitrogen contents seem to affect GHG emission from the tidal land surface. The tidal soil was found to be either source or sink for the major GHG during the experimental periods. The annual average of $CH_{4}\;and\;CO_{2}$ fluxes were $0.13{\pm}0.86\;mg\;m^{-2}h^{-1}\;and\;5.83{\pm}138.73\;mg\;m^{-2}h^{-1}$, respectively, which will be as a source of these gases. However, $N_{2}O$ emission showed in negative flux, and the value was $-0.02{\pm}0.66\;mg\;m^{-2}h^{-1}$, and it implies tidal land surface act as a sink of $N_{2}O$. Over the experimental period, the absolute values of gas fluxes increased with soil temperature in general. Averages of the ambient gas concentration were $86.8{\pm}6.\;ppm$ in $CO_{2},\;1.63{\pm}0.34\;ppm\;in\;CH_{4},\;and\;0.59{\pm}0.15\;ppm\;in\;N_{2}O$, respectively. Generally, under the presence of gas emission from agricultural soils, decrease of gas emission will be observed as increase in ambient gas concentration. We, however, could not found significant correlation between the ambient concentrations and their emissions over the experimental period. There was no GHG compensation points existed in tide flat soil.

• 국제학술발표논문집
• /
• The 5th International Conference on Construction Engineering and Project Management
• /
• pp.213-218
• /
• 2013

To respond to global warming and climate change, Korean Government has implemented the GHG Target Management, which leads to a voluntary reduction in greenhouse gases from large businesses. Korean universities have put efforts on reducing GHG emissions and energy consumptions in the campuses, however, because of various activities and its characteristic of non-profit organization, establishing a long-term plan for reducing greenhouse gases is necessary. In this research, the Seoul National University's energy usage is analyzed and applicable technologies for reducing GHG emissions are extracted. Hence, three scenarios for performing the GHG Target Management are established. Proposed scenario is available for GHG Target Management and it would be expected to support decision- makings for reducing GHG emissions.

• Architectural research
• /
• 제19권4호
• /
• pp.95-99
• /
• 2017

Recently, it is becoming increasingly difficult to ignore carbon emission implication of building operations due to the significant rate of energy usage in buildings. In the building sector, our normal expectation implies that large building floor area induces more greenhouse gas (GHG) emission. In this research, the correlation between building total floor areas and GHG emission was explored by simple linear regression and analyzing the yielded residuals for confirming this seemingly obvious conjecture. By looking at the generated regression lines drawn based on the data sets representing public facilities in Ontario, Canada, we were able to confirm that carbon emission rate shows a proportional increase or decrease depending on the total floor area of buildings as has been implied as a conjecture. Some buildings were found to emit significantly large and small amount of GHG, and we addressed potential reasons why those buildings show the deviation from the confirmed proportional interrelation between a building's total floor area and the amount of GHG emission.

• 대한지리학회지
• /
• 제48권1호
• /
• pp.151-165
• /
• 2013

지방정부로 구성된 국제환경 협의회(ICLEI)는 범지구적 차원에서 기후변화를 완화시키기 위해 만들어진 기구이다. 지방정부들은 ICLEI를 통해 각 정부가 배출하는 온실가스를 정확히 측정하고자 관련 규약을 만들었다. 본 논문은 ICLEI 규약의 한계점을 지적한다. 온실가스배출관련 항목들을 지방정부관점에서 구분하고, 또 국가차원에서 요구하는 항목들과 일치시킨다는 점에서 이 규약은 실용적이라 할 수 있다. 특히 '이중측정'과 '탄소배출할당' 문제를 해결할 수 있는 사회적 기반을 마련한 부분은 지방정부들이 기후변화에 적극적으로 대응하고자 하는 의지로 해석할 수 있다. 하지만, 그 제한점은 다음과 같다. '생체연료연소에 의한 이산화탄소배출'을 온실가스로 취급하지 않는 점과 '간접이중측정'을 간과한 점은 온실가스배출량의 정확한 측정을 저해할 것으로 예상되며, 이들을 수정보완해야 지방정부들이 기후변화를 완화시키는데 있어 실제로 기여할 수 있을 것이다.

• 한국환경과학회지
• /
• 제23권9호
• /
• pp.1643-1654
• /
• 2014

The university is one of the main energy consumption facilities and thereby releases a large amount of greenhouse gas (GHG). Accordingly, efforts for reducing energy consumption and GHG have been established in many local as well as international universities. However, it has been limited to energy consumption and GHG, and has not included air pollution (AP). Therefore, we estimated GHG and AP integrated emissions from the energy consumed by Seoul National University of Science and Technology during the years between 2010 and 2012. In addition, the effect of alternative energy use scenario was analysed. We estimated GHG using IPCC guideline and Guidelines for Local Government Greenhouse Inventories, and AP using APEMEP/EEA Emission Inventory Guidebook 2013 and Air Pollutants Calculation Manual. The estimated annual average GHG emission was $11,420tonCO_{2eq}$, of which 27% was direct emissions from fuel combustion sectors, including stationary and mobile source, and the remaining 73% was indirect emissions from purchased electricity and purchased water supply. The estimated annual average AP emission was 7,757 kgAP, of which the total amount was from direct emissions only. The annual GHG emissions from city gas and purchased electricity usage per unit area ($m^2$) of the university buildings were estimated as $15.4kgCO_{2eq}/m^2$ and $42.4tonCO_{2eq}/m^2$ and those per person enrolled in the university were $210kgCO_{2eq}$/capita and $577kgCO_{2eq}$/capita. Alternative energy use scenarios revealed that the use of all alternative energy sources including solar energy, electric car and rain water reuse applicable to the university could reduce as much as 9.4% of the annual GHG and 34% of AP integrated emissions, saving approximately 400 million won per year, corresponding to 14% of the university energy budget.

• 한국산학기술학회논문지
• /
• 제12권7호
• /
• pp.3302-3309
• /
• 2011

본 연구는 기후변화 대응을 위한 온실가스 인벤토리 구축 및 공정진단을 통해 온실가스 배출 저감 결과를 나타내었다. 또한 기업체의 기후변화 대응에 대한 방향을 제시하였다. 울산지역은 산업단지 중심으로 석유화학, 자동차, 조선 등 에너지 다소비업체가 많으며, 이산화탄소 배출 저감을 체계적으로 실시 할 경우 국가적 차원에서 이산화탄소 배출량을 상당히 줄일 수 있을 것으로 판단되어 10개 기업체 대상으로 본 연구를 실시하였다. 10개 기업체 중 5개 기업체의 온실가스 배출량 산정 및 인벤토리 구축 결과 온실가스 배출량의 공정에 따른 직접배출이 높은 것을 알 수 있었다. 또한 에너지 및 온실가스 저감을 위해 약 온실가스저감 227,554만원 경제적 효과 및 온실가스 이산화탄소 50,740 ton/yr 절감효과를 발생하였다.