{"title":"希腊塞萨洛尼基雨的化学成分与气象条件的关系","authors":"C. Samara , R. Tsitouridou , Ch. Balafoutis","doi":"10.1016/0957-1272(92)90011-G","DOIUrl":null,"url":null,"abstract":"<div><p>Wet precipitation was collected in Thessaloniki, Greece, during the period March 1989–December 1990 by using an automatic wet-only precipitation sampler.</p><p>Rainwater samples were analysed for major cations (H<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>) and anions (Cl<sup>−</sup>, NO<sub>3</sub><sup>−</sup>, SO<sub>4</sub><sup>2−</sup>), in addition to acidity and conductivity measurements. The majority of rain had a neutral or alkaline character as a result of neutralization, primarily caused by calcareous soil dust and secondarily by atmospheric ammonia. In all rain, SO<sub>4</sub><sup>2−</sup> concentration exceeded NO<sub>3</sub><sup>−</sup> concentration. The contribution of maritime sources to the total SO<sub>4</sub><sup>2−</sup> concentration was very low (<2%).</p><p>The chemical composition of precipitation was analysed in conjunction with meteorological variables (season of the year, precipitation type, airflow patterns) to evaluate temporal variations and chemical source influence. Rain caused by weak, localized flows showed the highest acidity and the minimum influence of neutralization processes.</p></div>","PeriodicalId":100140,"journal":{"name":"Atmospheric Environment. Part B. Urban Atmosphere","volume":"26 3","pages":"Pages 359-367"},"PeriodicalIF":0.0000,"publicationDate":"1992-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0957-1272(92)90011-G","citationCount":"80","resultStr":"{\"title\":\"Chemical composition of rain in Thessaloniki, Greece, in relation to meteorological conditions\",\"authors\":\"C. Samara , R. Tsitouridou , Ch. Balafoutis\",\"doi\":\"10.1016/0957-1272(92)90011-G\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Wet precipitation was collected in Thessaloniki, Greece, during the period March 1989–December 1990 by using an automatic wet-only precipitation sampler.</p><p>Rainwater samples were analysed for major cations (H<sup>+</sup>, NH<sub>4</sub><sup>+</sup>, Na<sup>+</sup>, K<sup>+</sup>, Ca<sup>2+</sup>, Mg<sup>2+</sup>) and anions (Cl<sup>−</sup>, NO<sub>3</sub><sup>−</sup>, SO<sub>4</sub><sup>2−</sup>), in addition to acidity and conductivity measurements. The majority of rain had a neutral or alkaline character as a result of neutralization, primarily caused by calcareous soil dust and secondarily by atmospheric ammonia. In all rain, SO<sub>4</sub><sup>2−</sup> concentration exceeded NO<sub>3</sub><sup>−</sup> concentration. The contribution of maritime sources to the total SO<sub>4</sub><sup>2−</sup> concentration was very low (<2%).</p><p>The chemical composition of precipitation was analysed in conjunction with meteorological variables (season of the year, precipitation type, airflow patterns) to evaluate temporal variations and chemical source influence. Rain caused by weak, localized flows showed the highest acidity and the minimum influence of neutralization processes.</p></div>\",\"PeriodicalId\":100140,\"journal\":{\"name\":\"Atmospheric Environment. Part B. Urban Atmosphere\",\"volume\":\"26 3\",\"pages\":\"Pages 359-367\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0957-1272(92)90011-G\",\"citationCount\":\"80\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Atmospheric Environment. Part B. Urban Atmosphere\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/095712729290011G\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Atmospheric Environment. Part B. Urban Atmosphere","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/095712729290011G","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Chemical composition of rain in Thessaloniki, Greece, in relation to meteorological conditions
Wet precipitation was collected in Thessaloniki, Greece, during the period March 1989–December 1990 by using an automatic wet-only precipitation sampler.
Rainwater samples were analysed for major cations (H+, NH4+, Na+, K+, Ca2+, Mg2+) and anions (Cl−, NO3−, SO42−), in addition to acidity and conductivity measurements. The majority of rain had a neutral or alkaline character as a result of neutralization, primarily caused by calcareous soil dust and secondarily by atmospheric ammonia. In all rain, SO42− concentration exceeded NO3− concentration. The contribution of maritime sources to the total SO42− concentration was very low (<2%).
The chemical composition of precipitation was analysed in conjunction with meteorological variables (season of the year, precipitation type, airflow patterns) to evaluate temporal variations and chemical source influence. Rain caused by weak, localized flows showed the highest acidity and the minimum influence of neutralization processes.
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