气候变化领域集成服务门户(CCPortal): Photochemical emissions of HONO, NO2 and NO from the soil surface under simulated sunlight

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DOI	10.1016/j.atmosenv.2020.117596
	Photochemical emissions of HONO, NO2 and NO from the soil surface under simulated sunlight
	Yang W.; Yuan H.; Han C.; Yang H.; Xue X.
发表日期	2020
ISSN	1352-2310
卷号	234
英文摘要	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
关键词	HONO NO NO2 Photochemical emission Soil
语种	英语
scopus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
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/249107
作者单位	School of Metallurgy, Northeastern University, Shenyang, 110819, China
推荐引用方式 GB/T 7714	Yang W.,Yuan H.,Han C.,et al. Photochemical emissions of HONO, NO2 and NO from the soil surface under simulated sunlight[J],2020,234.
APA	Yang W.,Yuan H.,Han C.,Yang H.,&Xue X..(2020).Photochemical emissions of HONO, NO2 and NO from the soil surface under simulated sunlight.ATMOSPHERIC ENVIRONMENT,234.
MLA	Yang W.,et al."Photochemical emissions of HONO, NO2 and NO from the soil surface under simulated sunlight".ATMOSPHERIC ENVIRONMENT 234(2020).