Aerial observations for nitrogen compounds over the East China Sea

Aerial observations were conducted over the East China Sea in October 2009 (autumn), December 2010 (winter) and March 2012 (spring). The base airport was Goto Fukue Airport in Fukue Island, Nagasaki, Japan. The flights were performed between Fukue Island and the southern offing of Jeju Island and the flight altitudes were 500, 1000, 2000 and 3000 metres. The concentration ratios of particulate nitrate (NO3(p)) to inorganic total nitrate (T.NO3) were less than 0.5 in most of the flights except under high concentrations of dust particles (Kosa) or trans-boundary air pollutants. Most of the NO3(p) would be comprised of NaNO3 formed by the reaction of gaseous nitric acid (HNO3(g)) with sea salt aerosols during the observations in autumn and winter, with the exceptions of October 17 and December 11, when high concentrations of Kosa were transported. In the spring observation, the fraction of NaNO3 in NO3(p) was low and a large part of NO3(p) would be originated from reactions of HNO3(g) with gas phase ammonia and soil dust particles.

[1]  Kei Sato,et al.  Aerial Observation of Aerosols Transported from East Asia — Chemical Composition of Aerosols and Layered Structure of an Air Mass over the East China Sea , 2011 .

[2]  H. Bandow,et al.  Measurement system for particulate nitrate based on the scrubber difference NO-O3 chemiluminescence method in remote areas. , 2010, Analytical chemistry.

[3]  H. Kimoto,et al.  Quantitative reduction of particulate nitrate to nitric oxide by a molybdenum catalyst: Implications for NOy measurements in the marine boundary layer , 2008 .

[4]  Y. Sadanaga,et al.  A Gaseous Nitric Acid Analyzer for the Remote Atmosphere Based on the Scrubber Difference/NO-Ozone Chemiluminescence Method , 2008, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry.

[5]  Leiming Zhang,et al.  Low cost measurements of nitrogen and sulphur dry deposition velocities at a semi-alpine site: gradient measurements and a comparison with deposition model estimates. , 2008, Environmental pollution.

[6]  Chun-mei Geng,et al.  Aircraft measurements of vertical ultrafine particles profiles over Northern China coastal areas during dust storms in 2006 , 2008 .

[7]  Xiaoxiu Lun,et al.  Transport and transformation of total reactive nitrogen over the East China Sea , 2008 .

[8]  W. Malm,et al.  Observations of fine and coarse particle nitrate at several rural locations in the United States , 2008 .

[9]  A. Takami,et al.  Transport of anthropogenic aerosols from Asia and subsequent chemical transformation , 2007 .

[10]  Zhiliang Yao,et al.  NOx emission trends for China, 1995–2004: The view from the ground and the view from space , 2007 .

[11]  P. Hopke,et al.  Characteristics of the major chemical constituents of PM2.5 and smog events in Seoul, Korea in 2003 and 2004 , 2007 .

[12]  H. Akimoto,et al.  An Asian emission inventory of anthropogenic emission sources for the period 1980-2020 , 2007 .

[13]  A. Takami,et al.  Aircraft measurement of organic aerosols over China. , 2007, Environmental science & technology.

[14]  Jian-hua Chen,et al.  Study on acidity and acidic buffering capacity of particulate matter over Chinese eastern coastal areas in spring , 2006 .

[15]  B. Lapointe,et al.  Atmospheric nitrogen deposition from a remote source enriches macroalgae in coral reef ecosystems near Green Turtle Cay, Abacos, Bahamas. , 2005, Marine pollution bulletin.

[16]  Wei Wang,et al.  Aerial observation of air pollutants and aerosols over Bo Hai,China , 2005 .

[17]  N. Sugimoto,et al.  Aerial measurement of air pollutants and aerosols during 20-22 March 2001 over the East China Sea , 2004 .

[18]  Henry E. Fuelberg,et al.  Uptake of nitrate and sulfate on dust aerosols during TRACE‐P , 2003 .

[19]  Michael Q. Wang,et al.  An inventory of gaseous and primary aerosol emissions in Asia in the year 2000 , 2003 .

[20]  Ikuko Mori,et al.  Change in size distribution and chemical composition of kosa (Asian dust) aerosol during long-range transport , 2003 .

[21]  Thomas A. Cahill,et al.  Asian aerosols in North America: Frequency and concentration of fine dust , 2002 .

[22]  G. Mcconville,et al.  Nitric acid dry deposition to conifer forests:. Niwot Ridge spruce-fir-pine study , 2001 .

[23]  Itsushi Uno,et al.  Transport of Asian air pollution to North America , 1999 .

[24]  T. Meyers,et al.  Estimation of Dry Deposition of Inorganics Using Filter Pack Data and Inferred Deposition Velocity , 1996 .

[25]  H. Akimoto,et al.  The 1991 PEACAMPOT aircraft observation of ozone, NO x , and SO2 over the East China Sea, the Yellow Sea, and the Sea of Japan , 1995 .

[26]  J. Hlavay,et al.  Fractionation of elements by particle size and chemical bonding from aerosols followed by ETAAS determination , 2001 .