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- W2388646977 abstract "Using observation data of negative oxygen ions in Changsha from January to December in 2013,the seasonal,monthly and daily variation characteristics of negative oxygen ions in Changesha were analyzed,as well as the correlation between air negative oxygen ion and meteorological factors. The results showed that the annual average concentration of negative oxygen ions is 806 /cm3 in Changsha City,the average autumn of negative oxygen ions concentration is 1 072 /cm3,the maximum,minimum the average concentration of negative oxygen ions in the spring is 551 /cm3. There are obvious differences in the diurnal variation of negative oxygen ions in the four seasons,January in winter and September in autumn negative oxygen ions concentration changes are basically shows two peak distribution,just January in winter maximum value appeared 04:00 and 15:00. September in autumn maximum value appeared in 05:00 and 17:00; spring April,negative oxygen ions concentration day changes basic rendering three peak distribution,maximum value appeared in 03:00,12:00 and 15:00; summer July,negative oxygen ions concentration day changes one peak distribution,maximum value appeared in 06:00. Negative oxygen ions concentrations and meteorological factors are closely related,which was positively correlated with temperature and humidity." @default.
- W2388646977 created "2016-06-24" @default.
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- W2388646977 date "2014-01-01" @default.
- W2388646977 modified "2023-09-25" @default.
- W2388646977 title "Variation Features of Negative Ion Concentration and Its Correlation with Meteorological Factors in Changsha" @default.
- W2388646977 hasPublicationYear "2014" @default.
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