Characteristics and sources of nitrous acid in an urban atmosphere of northern China: Results from 1-yr continuous observations
Sign Up to like & getrecommendations! Published in 2018 at "Atmospheric Environment"
DOI: 10.1016/j.atmosenv.2018.03.033
Abstract: Abstract Nitrous acid (HONO) is a key reservoir of the hydroxyl radical (OH) and plays a central role in the atmospheric chemistry. To understand the sources and impact of HONO in the polluted atmosphere of… read more here.
Keywords: nitrous acid; hono; characteristics sources; china ... See more keywords
Heterogeneous photochemical uptake of NO2 on the soil surface as an important ground-level HONO source.
Sign Up to like & getrecommendations! Published in 2020 at "Environmental pollution"
DOI: 10.1016/j.envpol.2020.116289
Abstract: Nitrous acid (HONO) production from the heterogeneous photochemical reaction of NO2 on several Chinese soils was performed in a cylindrical reactor at atmospheric pressure. The NO2 uptake coefficient (γ) and HONO yield (YHONO) on different… read more here.
Keywords: hono; heterogeneous photochemical; photochemical uptake; no2 soil ... See more keywords
Long-term winter observation of nitrous acid in the urban area of Beijing.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of environmental sciences"
DOI: 10.1016/j.jes.2021.09.010
Abstract: The particulate matter (PM) pollution has been significantly improved by carrying out various valid emission control strategies since 2013 in China. Meanwhile the variation trend of nitrous acid (HONO) is worthy to investigate due to… read more here.
Keywords: hono; observation; urban area; area beijing ... See more keywords
Collection Method for Isotopic Analysis of Gaseous Nitrous Acid.
Sign Up to like & getrecommendations! Published in 2018 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.7b03561
Abstract: The sources and chemistry of gaseous nitrous acid (HONO) in the environment are of great interest. HONO is a major source of atmospheric hydroxyl radical (OH), which impacts air quality and climate. HONO is also… read more here.
Keywords: isotopic analysis; hono; chemistry; method ... See more keywords
Unexpectedly High Indoor HONO Concentrations Associated with Photochemical NO2 Transformation on Glass Windows.
Sign Up to like & getrecommendations! Published in 2020 at "Environmental science & technology"
DOI: 10.1021/acs.est.0c05624
Abstract: Nitrous acid (HONO) is an important gaseous pollutant contributing to indoor air pollution because it causes adverse health effects and is the main source of hydroxyl radicals (OH). Here, we present direct measurements of HONO… read more here.
Keywords: hono; unexpectedly high; high indoor; glass ... See more keywords
Heterogeneous Formation of HONO Catalyzed by CO2.
Sign Up to like & getrecommendations! Published in 2021 at "Environmental science & technology"
DOI: 10.1021/acs.est.1c02706
Abstract: Gas-phase nitrous acid (HONO) is a major precursor of hydroxyl radicals that dominate atmospheric oxidizing capacity. Nevertheless, pathways of HONO formation remain to be explored. This study unveiled an important CO2-catalysis mechanism of HONO formation,… read more here.
Keywords: formation hono; hono; heterogeneous formation; mechanism ... See more keywords
HONO Measurement by Catalytic Conversion to NO on Nafion Surfaces.
Sign Up to like & getrecommendations! Published in 2022 at "Environmental science & technology"
DOI: 10.1021/acs.est.2c05944
Abstract: A selective catalytic converter has been developed to quantify nitrous acid (HONO), a photochemical precursor to NO and OH radicals that drives the formation of ozone and other pollutants in the troposphere. The converter is… read more here.
Keywords: catalytic conversion; measurement catalytic; nafion; hono measurement ... See more keywords
Vertical Differences in NO2-to-HONO Heterogeneous Conversion and HONO-Driven OH Production over Inland, Coastal, and Island Regions.
Sign Up to like & getrecommendations! Published in 2025 at "Environmental science & technology"
DOI: 10.1021/acs.est.5c10318
Abstract: Photolysis of nitrous acid (HONO) is a key source of hydroxyl radicals (OH), but the vertical distribution of its generation mechanism and photolysis effects across different land-sea locations remains unclear. This study used ground-based hyperspectral… read more here.
Keywords: island regions; hono; coastal island; island ... See more keywords
Changing aerosol chemistry is redefining HONO sources
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DOI: 10.1038/s41467-025-60614-7
Abstract: Heterogeneous reactions of NO2 on particulate matter have been considered an important source of HONO (Nitrous acid) in the troposphere, whereas its contribution is controversial due to the lack of uptake coefficient of NO2 (γNO2)… read more here.
Keywords: chemistry; aerosol chemistry; chemistry redefining; redefining hono ... See more keywords
Indoor heterogeneous photochemistry of molds and their contribution to HONO formation.
Sign Up to like & getrecommendations! Published in 2021 at "Indoor air"
DOI: 10.1111/ina.12971
Abstract: To better understand the impact of molds on indoor air quality, we studied the photochemistry of microbial films made by Aspergillus niger species, a common indoor mold. Specifically, we investigated their implication in the conversion… read more here.
Keywords: indoor heterogeneous; hono; photochemistry molds; heterogeneous photochemistry ... See more keywords
The seasonal variations and potential sources of nitrous acid (HONO) in the rural North China Plain.
Sign Up to like & getrecommendations! Published in 2022 at "Environmental pollution"
DOI: 10.2139/ssrn.4112814
Abstract: Nitrous acid (HONO), an essential precursor of hydroxyl radicals (OH) in the troposphere, plays an integral role in atmospheric photochemistry. However, potential HONO sources remain unclear, particularly in rural areas, where long-term (including seasonal) measurements… read more here.
Keywords: summer; winter; hono; summer autumn ... See more keywords