The management of pollutant emissions from industrial sites involves various crucial steps, including estimating emission quantities and assessing their impact on surrounding areas. While emissions from point sources, such as exhaust outlets, are relatively easier to manage, emissions from area sources, such as workshops and livestock facilities, are often challenging to measure due to various constraints. To address this issue, this study proposes a method for estimating emissions from area sources by utilizing data collected at site boundaries and applying a reverse modeling approach. Using data from actual livestock facilities, along with reverse modeling results, this study identified a strong correlation between the facility area and the number of livestock raised. Correlation analyses revealed positive relationships between the facility area and the average odor emission rate, as well as between the number of livestock and the average odor emission rate. In addition, the results of reverse modeling confirmed a significant correlation between odor emissions, the number of livestock, and the facility area. Based on these findings, this study developed an odor emission factor for livestock facilities using the number of livestock and the facility area as activity indicators. The odor emission factor is expressed in units of OU/s/pig/m², where “OU” represents odor units, “s” denotes seconds, “pig” corresponds to the number of livestock, and “m²” refers to the total facility area. By multiplying the number of livestock by the facility area, the total odor emission rate (OU/sec) can be calculated. Unlike traditional emission factors that rely solely on the number of livestock, this newly developed factor incorporates all facilities contributing to odor emissions within a livestock operation. This approach allows for the estimation of odor emissions using external measurement data and facility information, even in cases where direct measurements are impractical. The results of this study are expected to be effectively utilized for odor evaluation and management in livestock facilities.

Abstract
1. 서 론
2. 실험 방법
    2.1 돈사 형태
    2.2 현장 측정
    2.3 역 모델링
    2.4 CALPUFF 모델
    2.5 악취첨두농도
3. 결과 및 고찰
    3.1 현장측정 복합악취 농도
    3.2 배출계수 산정결과
4. 결 론
감사의 글
References

• 김아라(이투엠쓰리(주)) | A-ra Kim (E2M3 Inc.)
• 손은성(이투엠쓰리(주)) | Eun-sung Son (E2M3 Inc.)
• 한상우(이투엠쓰리(주)) | Sang-woo Han (E2M3 Inc.)
• 김성태(이투엠쓰리(주)) | Sung-tae Kim (E2M3 Inc.) Corresponding author