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- W2390939880 abstract "Particle number density and PM_(2.5) mass concentration and meteorological data and visibility have been measured by Condensation Particle Counters and TEOM1400a(Tapered Element Oscillating Microbalance) and Present Weather Detectors at Guangzhou station in January 2008.The results showed that:The number of the days which the visibilities were less than 10km was 25 days.The number of the hazy days was 17 days.The particle number density and PM_(2.5) mass concentration are 22032±4731 /cm~3 and 123.1±64.5μg/m~3 in hazy days,respectively.The daily variation of particle number density was similar between the haze days and normal days,especially the variation of particle number density in normal days was more obvious than in hazy days during 13:00～16:00.The particle number density had a negative relationship with visibility and relative humidity and wind speed and had a positive relationship with PM_(2.5) mass concentration and temperature during observation period.The absolute values of correlation coefficients between particle number density and PM_(2.5) mass concentration and relative humidity in hazy days were much higher than in normal days." @default.
- W2390939880 created "2016-06-24" @default.
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- W2390939880 date "2009-01-01" @default.
- W2390939880 modified "2023-09-23" @default.
- W2390939880 title "Study on the Pollution Characteristics of Particle Number Density in Guangzhou during January 2008" @default.
- W2390939880 hasPublicationYear "2009" @default.
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