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Park GH, Lee SE, Kim YI, Kim D, Lee K, Kang J, Kim YH, Kim H, Park S, Kim TW. Atmospheric deposition of anthropogenic inorganic nitrogen in airborne particles and precipitation in the East Sea in the northwestern Pacific Ocean. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 681:400-412. [PMID: 31108360 DOI: 10.1016/j.scitotenv.2019.05.135] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 05/08/2019] [Accepted: 05/10/2019] [Indexed: 06/09/2023]
Abstract
The atmospheric deposition of anthropogenic nitrogen is an increasingly important new source of nitrogen to the ocean. Coastal areas east of the Korean Peninsula are suitable for the investigation of the effects of atmospheric anthropogenic nitrogen on the ocean nutrient system because of the low riverine discharge rates and the prevailing influence of the East Asian outflow. Thus, we measured the concentrations of nitrate (NO3-) and ammonium (NH4+) in airborne particles and in precipitation from March 2014 to February 2016 at a coastal site (37.08°N, 129.41°E) on the east coast of Korea. The dry deposition of NO3- (27-30 mmol N m-2 yr-1) was far greater than that of NH4+ (6-8 mmol N m-2 yr-1). The greater rate of dry NO3- deposition was associated with air masses traveling over northeastern China and central Korea. In contrast, the rates of wet deposition of NO3- (17-24 mmol N m-2 yr-1) and NH4+ (14-27 mmol N m-2 yr-1) were comparable and were probably associated with in-cloud scavenging of these ions. The results indicate that the total deposition of NO3- and NH4+ combined could contribute to ~2.4% and ~1.9% of the primary production in the coastal areas east of the Korean Peninsula and in the East Asian marginal seas, respectively, which would be a lower bound because the dry deposition of reactive nitrogen gas was not included. Our study shows that the atmospheric input of anthropogenic NO3- and NH4+ may substantially increase phytoplankton biomass in the coastal waters of the East Sea near the Korean Peninsula.
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Affiliation(s)
- Geun-Ha Park
- Marine Environmental Research Center, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea
| | - Seon-Eun Lee
- Marine Environmental Research Center, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea
| | - Young-Il Kim
- East Sea Research Institute, Korea Institute of Ocean Science & Technology, Uljin 36315, Republic of Korea
| | - Dongseon Kim
- Marine Environmental Research Center, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea
| | - Kitack Lee
- Division of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang 37673, Republic of Korea
| | - Jeongwon Kang
- Korean Seas Geosystem Research Unit, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea
| | - Yeo-Hun Kim
- Global Ocean Research Center, Korea Institute of Ocean Science & Technology, Busan 49111, Republic of Korea
| | - Haryun Kim
- Fundamental Research Division, National Marine Biodiversity Institute of Korea, Janghang 33662, Republic of Korea
| | - Seunghee Park
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Tae-Wook Kim
- Division of Environmental Science and Ecological Engineering, Korea University, Seoul 02841, Republic of Korea; OJeong Eco-Resilience Institute, Korea University, Seoul 02841, Republic of Korea.
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Goto D. Modeling of black carbon in Asia using a global-to-regional seamless aerosol-transport model. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2014; 195:330-5. [PMID: 24993453 DOI: 10.1016/j.envpol.2014.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 05/08/2014] [Accepted: 06/05/2014] [Indexed: 05/26/2023]
Abstract
In Asia, the evaluation of black carbon (BC) using global aerosol-transport models has been incomplete due to a lack of available measurements. Recently, new measurements and datasets at various Asian sites have become available for use in model validation. In this study, we compared the BC mass concentrations obtained by an aerosol-coupled global nonhydrostatic model adopting a uniform-grid system with in-situ measurements and other models over Asia. The results revealed that our model, as well as other global models, was unable to reproduce the observed BC values at most sites in China and India, most likely due to strong local hotspots. To overcome the inconsistency between the models and measurements, we developed a new aerosol-transport model using a stretched-grid system for high-resolution simulations with up to approximately 10 km grids. Our model can be used as a global-to-regional seamless aerosol-transport model for low to high horizontal resolution simulations.
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Affiliation(s)
- Daisuke Goto
- National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
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Hsu SC, Liu SC, Huang YT, Chou CCK, Lung SCC, Liu TH, Tu JY, Tsai F. Long-range southeastward transport of Asian biosmoke pollution: Signature detected by aerosol potassium in Northern Taiwan. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2009jd011725] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lin P, Hu M, Deng Z, Slanina J, Han S, Kondo Y, Takegawa N, Miyazaki Y, Zhao Y, Sugimoto N. Seasonal and diurnal variations of organic carbon in PM2.5in Beijing and the estimation of secondary organic carbon. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jd010902] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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