Stable isotope ratio of atmospheric and seawater nitrate in the East Sea in the northwestern Pacific ocean
SCIE
SCOPUS
- Title
- Stable isotope ratio of atmospheric and seawater nitrate in the East Sea in the northwestern Pacific ocean
- Authors
- Kim, H.; Park, G.-H.; Lee, S.-E.; Kim, Y.-I.; Lee, K.; Kim, Y.-H.; Kim, T.-W.
- Date Issued
- 2019-12
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- The nitrogen and oxygen isotopic values of anthropogenic NOx- (including NO2- and NO3-) are preserved in precipitation and airborne total suspended particles. Hence, isotope analyses of these atmospheric samples allow for the identification of the NOx- sources. In this study, atmospheric delta N-15- and delta O-18-NOx- values were measured in an eastern coastal site of South Korea over a three-year period, and compared with seawater values observed from coastal waters of the East Sea. The highest seasonal atmospheric delta N-15-NOx- values were associated with wintertime air masses blowing from northeastern China, and similar to those produced by coal and biomass burning. By contrast, the lowest atmospheric delta N-15-NO(x)(- )values were observed in summer, and the major source appeared to be vehicle exhaust. In addition, the reductions in the seawater delta(15) N-NOx- and Delta(15 -18) (i.e., delta(15) N-NOx- minus delta(18) O-NOx-) values in the East Sea could be at least partially attributed to atmospheric deposition.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/100480
- DOI
- 10.1016/j.marpolbul.2019.110610
- ISSN
- 0025-326X
- Article Type
- Article
- Citation
- MARINE POLLUTION BULLETIN, vol. 149, page. 110610, 2019-12
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- There are no files associated with this item.
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