T. Miyazaki, K. Funasaka, Yoshikazu Teraminami, Toshikazu Kamiura
{"title":"大阪市的粉尘和水溶性离子浓度","authors":"T. Miyazaki, K. Funasaka, Yoshikazu Teraminami, Toshikazu Kamiura","doi":"10.11468/SEIKATSUEISEI.54.33","DOIUrl":null,"url":null,"abstract":"Dust and water-soluble ion concentrations in Osaka City were measured by high-volume air sampler and the factors causing high concentrations of dust and water-soluble ions investigated. An examination of the annual change in dust concentration showed a sudden decrease in the 1980s and 1990s and a gentler decrease in the 2000s. Concentrations of chloride and nitrate have remained at the same level while concentrations of sulfate and ammonium ion have shown a slight increasing trend in the last ten years. Regarding the correlation between dust and water-soluble ion concentrations, a strong correlation was observed between dust concentration and nitrate concentration. Regarding the correlation between dust and water-soluble ion concentrations and meteorological factors, a strong correlation of the temperature differences between Ikoma and Osaka to dust concentration and nitrate and ammonium ion concentrations was observed. Continental sand particle data showed a correlation of low relative humidity to high concentration of chloride, nitrate, and sulfate, and to low concentration of ammonium ions, while typhoon data showed a correlation of high wind velocity to high chloride concentration.","PeriodicalId":17443,"journal":{"name":"Journal of Urban Living and Health Association","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2010-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Dust and Water-soluble Ion Concentrations in Osaka City\",\"authors\":\"T. Miyazaki, K. Funasaka, Yoshikazu Teraminami, Toshikazu Kamiura\",\"doi\":\"10.11468/SEIKATSUEISEI.54.33\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Dust and water-soluble ion concentrations in Osaka City were measured by high-volume air sampler and the factors causing high concentrations of dust and water-soluble ions investigated. An examination of the annual change in dust concentration showed a sudden decrease in the 1980s and 1990s and a gentler decrease in the 2000s. Concentrations of chloride and nitrate have remained at the same level while concentrations of sulfate and ammonium ion have shown a slight increasing trend in the last ten years. Regarding the correlation between dust and water-soluble ion concentrations, a strong correlation was observed between dust concentration and nitrate concentration. Regarding the correlation between dust and water-soluble ion concentrations and meteorological factors, a strong correlation of the temperature differences between Ikoma and Osaka to dust concentration and nitrate and ammonium ion concentrations was observed. Continental sand particle data showed a correlation of low relative humidity to high concentration of chloride, nitrate, and sulfate, and to low concentration of ammonium ions, while typhoon data showed a correlation of high wind velocity to high chloride concentration.\",\"PeriodicalId\":17443,\"journal\":{\"name\":\"Journal of Urban Living and Health Association\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-01-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Urban Living and Health Association\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.11468/SEIKATSUEISEI.54.33\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Urban Living and Health Association","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.11468/SEIKATSUEISEI.54.33","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Dust and Water-soluble Ion Concentrations in Osaka City
Dust and water-soluble ion concentrations in Osaka City were measured by high-volume air sampler and the factors causing high concentrations of dust and water-soluble ions investigated. An examination of the annual change in dust concentration showed a sudden decrease in the 1980s and 1990s and a gentler decrease in the 2000s. Concentrations of chloride and nitrate have remained at the same level while concentrations of sulfate and ammonium ion have shown a slight increasing trend in the last ten years. Regarding the correlation between dust and water-soluble ion concentrations, a strong correlation was observed between dust concentration and nitrate concentration. Regarding the correlation between dust and water-soluble ion concentrations and meteorological factors, a strong correlation of the temperature differences between Ikoma and Osaka to dust concentration and nitrate and ammonium ion concentrations was observed. Continental sand particle data showed a correlation of low relative humidity to high concentration of chloride, nitrate, and sulfate, and to low concentration of ammonium ions, while typhoon data showed a correlation of high wind velocity to high chloride concentration.
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