DOI: 10.1016/j.atmosenv.2020.117596
论文题名: Photochemical emissions of HONO, NO2 and NO from the soil surface under simulated sunlight
作者: Yang W. ; Yuan H. ; Han C. ; Yang H. ; Xue X.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 234 语种: 英语
英文关键词: Atmospheric humidity
; Irradiation
; Nitrogen oxides
; Soils
; Ambient pressures
; Atmospheric implications
; Different soils
; Emission fluxes
; Enhanced Emission
; Environmental conditions
; Irradiation intensity
; Simulated sunlight
; Soil pollution
; nitrogen dioxide
; nitrogen oxide
; nitrous acid
; air-soil interaction
; atmospheric pollution
; emission
; environmental conditions
; nitric oxide
; nitrogen dioxide
; photochemistry
; simulation
; soil pollution
; soil surface
; solar radiation
; Article
; atmosphere
; chemoluminescence
; environmental temperature
; humidity
; irradiation
; photochemistry
; priority journal
; soil acidity
; soil analysis
; soil property
; sunlight
; surface property
学科: HONO
; NO
; NO2
; Photochemical emission
; Soil
中文摘要: Emissions of HONO, NO2 and NO from different soils under simulated sunlight were investigated using a flow reactor at ambient pressure. Enhanced emissions of HONO, NO2 and NO were observed when soils were exposed to the simulated sunlight. NO3− and NO2− partly contributed to the HONO and NO formations, whereas NH4+ and NH2OH played minor roles in HONO, NO2 and NO emissions from the soil. The emission flux densities of HONO (FHONO), NO2 (FNO2) and NO (FNO) significantly depended on environmental conditions, including irradiation intensity, relative humidity (RH), temperature and pH. FHONO, FNO2 and FNO linearly increased with increasing irradiation intensity in the range of 0–320 W/m2. Maximum values of FHONO, FNO2 and FNO appeared at RH = 55%. FHONO and FNO increased while FNO2 decreased with increasing the temperature in the range of 278–338 K. Maximum FHONO and FNO2 values appeared at pH = 8 while larger FNO values occurred at pH of 2 and 8. Atmospheric implications about the photochemical emission of HONO from soil contributing to HONO in the atmosphere were also discussed. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160725
Appears in Collections: 气候变化与战略
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作者单位: School of Metallurgy, Northeastern University, Shenyang, 110819, China
Recommended Citation:
Yang W.,Yuan H.,Han C.,et al. Photochemical emissions of HONO, NO2 and NO from the soil surface under simulated sunlight[J]. Atmospheric Environment,2020-01-01,234