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 (NO 3 − ) and ammonium (NH 4 + ) 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 NO 3 − (27–30 mmol N m −2 yr −1 ) was far greater than that of NH 4 + (6–8 mmol N m −2 yr −1 ). The greater rate of dry NO 3 − deposition was associated with air masses traveling over northeastern China and central Korea. In contrast, the rates of wet deposition of NO 3 − (17–24 mmol N m −2 yr −1 ) and NH 4 + (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 NO 3 − and NH 4 + 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 NO 3 − and NH 4 + may substantially increase phytoplankton biomass in the coastal waters of the East Sea near the Korean Peninsula.
| Original language | English |
|---|---|
| Pages (from-to) | 400-412 |
| Number of pages | 13 |
| Journal | Science of the Total Environment |
| Volume | 681 |
| DOIs | |
| Publication status | Published - 2019 Sep 1 |
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Keywords
- Air-mass backward trajectory analysis
- Marine productivity
- Ocean nitrogen biogeochemistry
- Transboundary pollution
ASJC Scopus subject areas
- Environmental Engineering
- Environmental Chemistry
- Waste Management and Disposal
- Pollution
Cite this
Atmospheric deposition of anthropogenic inorganic nitrogen in airborne particles and precipitation in the East Sea in the northwestern Pacific Ocean. / Park, Geun Ha; Lee, Seon Eun; Kim, Young il; Kim, Dongseon; Lee, Kitack; Kang, Jeongwon; Kim, Yeo Hun; Kim, Haryun; Park, Seunghee; Kim, Tae-Wook.
In: Science of the Total Environment, Vol. 681, 01.09.2019, p. 400-412.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Atmospheric deposition of anthropogenic inorganic nitrogen in airborne particles and precipitation in the East Sea in the northwestern Pacific Ocean
AU - Park, Geun Ha
AU - Lee, Seon Eun
AU - Kim, Young il
AU - Kim, Dongseon
AU - Lee, Kitack
AU - Kang, Jeongwon
AU - Kim, Yeo Hun
AU - Kim, Haryun
AU - Park, Seunghee
AU - Kim, Tae-Wook
PY - 2019/9/1
Y1 - 2019/9/1
N2 - 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 (NO 3 − ) and ammonium (NH 4 + ) 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 NO 3 − (27–30 mmol N m −2 yr −1 ) was far greater than that of NH 4 + (6–8 mmol N m −2 yr −1 ). The greater rate of dry NO 3 − deposition was associated with air masses traveling over northeastern China and central Korea. In contrast, the rates of wet deposition of NO 3 − (17–24 mmol N m −2 yr −1 ) and NH 4 + (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 NO 3 − and NH 4 + 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 NO 3 − and NH 4 + may substantially increase phytoplankton biomass in the coastal waters of the East Sea near the Korean Peninsula.
AB - 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 (NO 3 − ) and ammonium (NH 4 + ) 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 NO 3 − (27–30 mmol N m −2 yr −1 ) was far greater than that of NH 4 + (6–8 mmol N m −2 yr −1 ). The greater rate of dry NO 3 − deposition was associated with air masses traveling over northeastern China and central Korea. In contrast, the rates of wet deposition of NO 3 − (17–24 mmol N m −2 yr −1 ) and NH 4 + (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 NO 3 − and NH 4 + 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 NO 3 − and NH 4 + may substantially increase phytoplankton biomass in the coastal waters of the East Sea near the Korean Peninsula.
KW - Air-mass backward trajectory analysis
KW - Marine productivity
KW - Ocean nitrogen biogeochemistry
KW - Transboundary pollution
UR - http://www.scopus.com/inward/record.url?scp=85065705288&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85065705288&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2019.05.135
DO - 10.1016/j.scitotenv.2019.05.135
M3 - Article
C2 - 31108360
AN - SCOPUS:85065705288
VL - 681
SP - 400
EP - 412
JO - Science of the Total Environment
JF - Science of the Total Environment
SN - 0048-9697
ER -