{"title":"尼日利亚地下水系统中Rn-222的年变率","authors":"I.P. Farai, A.O. Sanni","doi":"10.1016/0899-5362(92)90024-7","DOIUrl":null,"url":null,"abstract":"<div><p>Radon 222 was measured continuously in a groundwater system in Nigeria for one year by γ-spectroscopy. The mean Rn concentration for a particular month is 15,1 Bq/l with a standard deviation of 1.0 Bq/l while the mean for the whole year is 14.8 Bq/l with a standard deviation of 1.4 Bq/l. All the values for the year lie essentially within ±δ of the mean. Rainfall appears to be the only major factor causing variations.</p></div>","PeriodicalId":100750,"journal":{"name":"Journal of African Earth Sciences (and the Middle East)","volume":"15 3","pages":"Pages 399-403"},"PeriodicalIF":0.0000,"publicationDate":"1992-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0899-5362(92)90024-7","citationCount":"13","resultStr":"{\"title\":\"Year-long variability of Rn-222 in a groundwater system in Nigeria\",\"authors\":\"I.P. Farai, A.O. Sanni\",\"doi\":\"10.1016/0899-5362(92)90024-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Radon 222 was measured continuously in a groundwater system in Nigeria for one year by γ-spectroscopy. The mean Rn concentration for a particular month is 15,1 Bq/l with a standard deviation of 1.0 Bq/l while the mean for the whole year is 14.8 Bq/l with a standard deviation of 1.4 Bq/l. All the values for the year lie essentially within ±δ of the mean. Rainfall appears to be the only major factor causing variations.</p></div>\",\"PeriodicalId\":100750,\"journal\":{\"name\":\"Journal of African Earth Sciences (and the Middle East)\",\"volume\":\"15 3\",\"pages\":\"Pages 399-403\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1992-10-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0899-5362(92)90024-7\",\"citationCount\":\"13\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of African Earth Sciences (and the Middle East)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0899536292900247\",\"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 African Earth Sciences (and the Middle East)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0899536292900247","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Year-long variability of Rn-222 in a groundwater system in Nigeria
Radon 222 was measured continuously in a groundwater system in Nigeria for one year by γ-spectroscopy. The mean Rn concentration for a particular month is 15,1 Bq/l with a standard deviation of 1.0 Bq/l while the mean for the whole year is 14.8 Bq/l with a standard deviation of 1.4 Bq/l. All the values for the year lie essentially within ±δ of the mean. Rainfall appears to be the only major factor causing variations.
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