새만금 간척지 지역 공기 중 암모니아 농도의 연간 분포 = Annual Distribution of Atmospheric Ammonia Concentration in Saemangum Reclaimed Land Area

다국어 초록 (Multilingual Abstract)

BACKGROUND: More recently, it has been shown that atmospheric ammonia (NH₃) plays a primary role in the formation of secondary particulate matter by reacting with the acidic species, e.g. SO₂, NOx, to form PM2.5 aerosols in the atmosphere. The Jeonbuk region is an area with high concentration of particulate matter. Due to environmental changes in the Saemangeum reclaimed land with an area of 219 ㎢, it is necessary to evaluate the impact of the particulate matter and atmospheric ammonia in the Jeonbuk region.
METHODS AND RESULTS: Atmospheric ammonia concentrations were measured from June 2020 to May 2021 using a passive sampler and CRDS analyzer. Seasonal and annual atmospheric ammonia concentration measured using passive sampler was significantly lower in Jangjado (background concentration), and the concentration ranged from 11.4 ㎍/㎥ to 18.2 ㎍/㎥. Atmospheric ammonia concentrations in Buan, Gimje, Gunsan, and Wanju regions did not show a significant difference, although there was a slight seasonal difference. The maximum atmospheric ammonia concentration measured using the CRDS analyzer installed in the IAMS near the Saemangeum reclaimed land was 51.5 ㎍/㎥ in autumn, 48.0 ㎍/㎥ in summer, 37.6 ㎍ /㎥ in winter, and 32.7 ㎍/㎥ in spring. The minimum concentration was 4.9 ㎍/㎥ in spring, 4.2 ㎍/㎥ in summer, and 3.5 ㎍/㎥ in autumn and winter. The annual average concentration was 14.6 ㎍/㎥.
CONCLUSION(S): Long term monitoring of atmospheric ammonia in agricultural areas is required to evaluate the formation of fine particulate matter and its impact on the environment. In addition, continuous technology development is needed to reduce ammonia emitted from farmland.

참고문헌 (Reference)

1 Wu SY, "Modeling atmospheric transport and fate of ammonia in North Carolina-PartⅡ: Effect of ammonia emissions on fine particulate matter formation" 42 : 3437-3451, 2008

2 Sutton MA, "Introduction : fluxes and impacts of atmospheric ammonia on national, landscape and farm scales" 119 : 7-8, 2002

3 Clarisse L, "Global ammonia distribution derived from infrared satellite observations" 2 : 479-483, 2009

4 Sheppard LJ, "Dry deposition of ammonia gas drives species change faster than wet deposition of ammonia ions :evidence from a long-term field manipulation" 17 : 3589-3607, 2011

5 Hristov AN, "Contribution of ammonia emitted from livestock to atmospheric fine particulate matter(PM2. 5)in the United States" 94 (94): 3130-3136, 2011

6 Wang S, "Atmospheric ammonia and its impacts on regional air quality over the megacity of Shanghai China" 5 : 2015

7 박준수, "2019~2020년 전주지역 대기 중 암모니아 농도 분포와 기원 추적" 한국대기환경학회 36 (36): 262-274, 2020