title: Field survey of trans-boundary air pollution with high time resolution at coastal sites on the Sea of Japan during winter in Japan.
abstract: An intensive field survey, with 6-h measurement intervals, of concentrations of chemical species in particulate matter and gaseous compounds was carried out at coastal sites on the Sea of Japan during winter. The concentration variation of SO(2)(g) and HNO(3)(g) were well correlated, whereas the NH(3)(g) concentration variation had no correlation with those of SO(2)(g) and HNO(3)(g). The NH(4) (+) (p)/non-sea-salt- (nss-)SO(4) (2 -)(p) ratio in particulate matter was mainly affected by the location of the sampling site. One or more concentration peaks of nss-Ca(2 +) for survey period were observed. Backward trajectories analyses for the highest nss-Ca(2 +) concentration peaks showed some inconsistency in pathways. We consider that insufficient mixing of the atmosphere and/or insufficient time for the transported air pollutants to react with those discharged locally are the most likely explanations for the discrepancies between the measured products [HNO(3)][NH(3)] and the calculated values.
authors.affiliation: Hyogo Prefectural Institute of Public Health and Environmental Sciences, 3-1-27 Yukihira-cho, Suma-ku, Kobe, Hyogo 654-0037, Japan. Masahide_Aikawa@pref.hyogo.jp
authors.forename: Masahide
authors.initials: M
authors.lastname: Aikawa
authors.forename: Takatoshi
authors.initials: T
authors.lastname: Hiraki
authors.forename: Motonori
authors.initials: M
authors.lastname: Tamaki
authors.forename: Mikio
authors.initials: M
authors.lastname: Kasahara
authors.forename: Akira
authors.initials: A
authors.lastname: Kondo
authors.forename: Itsushi
authors.initials: I
authors.lastname: Uno
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Mukai
authors.forename: Atsushi
authors.initials: A
authors.lastname: Shimizu
authors.forename: Kentaro
authors.initials: K
authors.lastname: Murano
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis*; D004784:Environmental Monitoring; D007564:Japan; D009792:Oceans and Seas; D012621:Seasons; D013997:Time Factors
chemical_list: D000393:Air Pollutants