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List of works by Heikki Junninen

A high-resolution mass spectrometer to measure atmospheric ion composition

scientific article published in 2010

A large source of low-volatility secondary organic aerosol

scientific article published in February 2014

Aerosol particle formation events and analysis of high growth rates observed above a subarctic wetland–forest mosaic

article published in 2008

An Instrumental Comparison of Mobility and Mass Measurements of Atmospheric Small Ions

article

Analysis of particle size distribution changes between three measurement sites in Northern Scandinavia

Analysis of particle size distribution changes between three measurement sites in northern Scandinavia

scholarly article

Atmospheric new particle formation from sulfuric acid and amines in a Chinese megacity

scientific article published on 19 July 2018

Atmospheric nucleation: highlights of the EUCAARI project and future directions

scholarly article

Atmospheric pressure thermal desorption chemical ionization mass spectrometry for ultra-sensitive explosive detection

scientific article published in November 2022

Atmospheric sulphuric acid and neutral cluster measurements using CI-APi-TOF

scholarly article

Biogenic and biomass burning organic aerosol in a boreal forest at Hyytiälä, Finland, during HUMPPA-COPEC 2010

scholarly article

Bisulfate – cluster based atmospheric pressure chemical ionization mass spectrometer for high-sensitivity (< 100 ppqV) detection of atmospheric dimethyl amine: proof-of-concept and first ambient data from boreal forest

Changes in concentration of nitrogen-containing compounds in 10nm particles of boreal forest atmosphere at snowmelt

Characterisation of corona-generated ions used in a Neutral cluster and Air Ion Spectrometer (NAIS)

article

Characterization of organic compounds in 10- to 50-nm aerosol particles in boreal forest with laser desorption-ionization aerosol mass spectrometer and comparison with other techniques

article

Chemical characterization of atmospheric ions at the high altitude research station Jungfraujoch (Switzerland)

scholarly article

Chemistry of stabilized Criegee intermediates in the CLOUD chamber

Cluster measurements at CLOUD using a high resolution ion mobility spectrometer-mass spectrometer combination

article

Comparing simulated and experimental molecular cluster distributions

scientific article

Competing atmospheric reactions of CH2OO with SO2and water vapour

scientific article published on 01 September 2014

Composition and temporal behavior of ambient ions in the boreal forest

scholarly article

Composition of negative air ions as a function of ion age and selected trace gases: Mass- and mobility distribution

article

Differing Mechanisms of New Particle Formation at Two Arctic Sites

scientific article published on 20 February 2021

Direct Observations of Atmospheric Aerosol Nucleation

scientific article published in Science

Does the onset of new particle formation occur in the planetary boundary layer?

Effect of ions on sulfuric acid-water binary particle formation: 2. Experimental data and comparison with QC-normalized classical nucleation theory

scientific article

Effect of ions on the measurement of sulfuric acid in the CLOUD experiment at CERN

Elemental composition and clustering behaviour of α-pinene oxidation products for different oxidation conditions

scholarly article published in 2015

Estimating the contribution of organic acids to northern hemispheric continental organic aerosol

article

Evolution of alpha-pinene oxidation products in the presence of varying oxidizers: CI-APi-TOF point of view

Evolution of α-pinene oxidation products in the presence of varying oxidizers: Negative APi-TOF point of view

Forest canopy mitigates soil N2O emission during hot moments

scientific article published in 2021

Formation of Low Volatility Organic Compounds and Secondary Organic Aerosol from Isoprene Hydroxyhydroperoxide Low-NO Oxidation

scientific article published on 24 July 2015

Gas phase formation of extremely oxidized pinene reaction products in chamber and ambient air

scholarly article

Gas-Phase Ozonolysis of Selected Olefins: The Yield of Stabilized Criegee Intermediate and the Reactivity toward SO2

H2SO4 formation from the gas-phase reaction of stabilized Criegee Intermediates with SO2: Influence of water vapour content and temperature

scholarly article by Torsten Berndt et al published June 2014 in Atmospheric Environment

Heterogeneous Nucleation onto Ions and Neutralized Ions: Insights into Sign-Preference

High-Resolution Mobility and Mass Spectrometry of Negative Ions Produced in a241Am Aerosol Charger

article

Highly Oxygenated Organic Molecules (HOM) from Gas-Phase Autoxidation Involving Peroxy Radicals: A Key Contributor to Atmospheric Aerosol

scientific article published on 25 February 2019

Influence of temperature on the molecular composition of ions and charged clusters during pure biogenic nucleation

scholarly article

Insight into acid-base nucleation experiments by comparison of the chemical composition of positive, negative, and neutral clusters

scientific article

Ion generation and CPC detection efficiency studies in sub 3-nm size range

Ion mobility spectrometry–mass spectrometry (IMS–MS) for on- and offline analysis of atmospheric gas and aerosol species

article

Ion-induced nucleation of pure biogenic particles. ⬇️

scientific article

Ion-induced sulfuric acid–ammonia nucleation drives particle formation in coastal Antarctica

scientific article published on 28 November 2018

Is reducing new particle formation a plausible solution to mitigate particulate air pollution in Beijing and other Chinese megacities?

scientific article published on 08 December 2020

Local Air Pollution versus Short–range Transported Dust Episodes: A Comparative Study for Submicron Particle Number Concentration

scholarly article by Tareq Hussein et al published 2011 in Aerosol and Air Quality Research

Long-term volatility measurements of submicron atmospheric aerosol in Hyytiälä, Finland

scholarly article

Major contribution of neutral clusters to new particle formation at the interface between the boundary layer and the free troposphere

scholarly article

Measurement of the nucleation of atmospheric aerosol particles

scientific article published on 16 August 2012

Measuring composition and growth of ion clusters of sulfuric acid, ammonia, amines and oxidized organics as first steps of nucleation in the CLOUD experiment

article

Molecular Composition of Oxygenated Organic Molecules and Their Contributions to Organic Aerosol in Beijing

scientific article published on 22 November 2021

Molecular steps of neutral sulfuric acid and dimethylamine nucleation in CLOUD

Molecular understanding of atmospheric particle formation from sulfuric acid and large oxidized organic molecules

scientific article published on 07 October 2013

Molecular understanding of sulphuric acid-amine particle nucleation in the atmosphere

scientific article published on 6 October 2013

Molecular-scale evidence of aerosol particle formation via sequential addition of HIO3.

scientific article published on 31 August 2016

Neutral molecular cluster formation of sulfuric acid-dimethylamine observed in real time under atmospheric conditions

scientific article

New insights into nocturnal nucleation

scholarly article

New particle formation in the free troposphere: A question of chemistry and timing.

scientific article published on 25 May 2016

Nucleation of H[sub 2]SO[sub 4] and oxidized organics in CLOUD experiment

Observation of regional new particle formation in the urban atmosphere

article

Observations of Nano-CN in the Nocturnal Boreal Forest

scholarly article by Katrianne Lehtipalo et al published 10 March 2011 in Aerosol Science and Technology

Observations of biogenic ion-induced cluster formation in the atmosphere.

scientific article published on 25 April 2018

Observations on nocturnal growth of atmospheric clusters

On atmospheric neutral and ion clusters observed in Hyytiälä spring 2011

article

On the composition of ammonia–sulfuric-acid ion clusters during aerosol particle formation

scholarly article

Online atmospheric pressure chemical ionization ion trap mass spectrometry (APCI-IT-MS<sup>n</sup>) for measuring organic acids in concentrated bulk aerosol – a laboratory and field study

Organic aerosol components derived from 25 AMS data sets across Europe using a consistent ME-2 based source apportionment approach

scholarly article

Organic condensation: a vital link connecting aerosol formation to cloud condensation nuclei (CCN) concentrations

scholarly article

Overview of the synoptic and pollution situation over Europe during the EUCAARI-LONGREX field campaign

scholarly article

Oxidation products of biogenic emissions contribute to nucleation of atmospheric particles ⬇️

scientific article

Prescribed burning of logging slash in the boreal forest of Finland: emissions and effects on meteorological quantities and soil properties

scholarly article

Production of extremely low volatile organic compounds from biogenic emissions: Measured yields and atmospheric implications

scientific article published on 26 May 2015

Quantification of the volatility of secondary organic compounds in ultrafine particles during nucleation events

scholarly article

Quantifying the impact of residential heating on the urban air quality in a typical European coal combustion region.

scientific article

Reactivity of stabilized Criegee intermediates (sCIs) from isoprene and monoterpene ozonolysis toward SO<sub>2</sub> and organic acids

scholarly article

Real-Time Detection of Arsenic Cations from Ambient Air in Boreal Forest and Lake Environments

article

Reduced anthropogenic aerosol radiative forcing caused by biogenic new particle formation ⬇️

scientific article

Remarks on Ion Generation for CPC Detection Efficiency Studies in Sub-3-nm Size Range

Resolving anthropogenic aerosol pollution types – deconvolution and exploratory classification of pollution events

scholarly article

Role of sulphuric acid, ammonia and galactic cosmic rays in atmospheric aerosol nucleation

scientific article

Seasonal and annual variation of carbon dioxide surface fluxes in Helsinki, Finland, in 2006–2010

scholarly article

Semicontinuous GC analysis and receptor modelling for source apportionment of ozone precursor hydrocarbons in Bresso, Milan, 2003.

scientific article published on April 2005

Sizing of neutral sub 3nm tungsten oxide clusters using Airmodus Particle Size Magnifier

scholarly article by J. Kangasluoma et al published September 2015 in Journal of Aerosol Science

Solar eclipse demonstrating the importance of photochemistry in new particle formation

scientific article published on 4 April 2017

Source characterization of highly oxidized multifunctional compounds in a boreal forest environment using positive matrix factorization

scholarly article

Sulphur dioxide and sulphuric acid concentrations in the vicinity of Kilpilahti industrial area

Sulphuric acid and aerosol particle production in the vicinity of an oil refinery

scholarly article by Nina Sarnela et al published October 2015 in Atmospheric Environment

Terpene emissions from boreal wetlands can initiate stronger atmospheric new particle formation than boreal forests

scientific article published in 2022

The Synergistic Role of Sulfuric Acid, Bases, and Oxidized Organics Governing New-Particle Formation in Beijing

scholarly article

The charging of neutral dimethylamine and dimethylamine-sulphuric acid clusters using protonated acetone

The charging of neutral dimethylamine and dimethylamine–sulfuric acid clusters using protonated acetone

The effect of H 2 SO 4 – amine clustering on chemical ionization mass spectrometry (CIMS) measurements of gas-phase sulfuric acid

scholarly article

The formation of highly oxidized multifunctional products in the ozonolysis of cyclohexene.

scientific article

The particle size magnifier closing the gap between measurement of molecules, molecular clusters and aerosol particles

The role of H2SO4-NH3 anion clusters in ion-induced aerosol nucleation mechanisms in the boreal forest

scholarly article

The role of low-volatility organic compounds in initial particle growth in the atmosphere. ⬇️

scientific article published on 25 May 2016

Thermodynamics of the formation of sulfuric acid dimers in the binary (H2SO4–H2O) and ternary (H2SO4–H2O–NH3) system

scholarly article

Toward direct measurement of atmospheric nucleation

scientific article

Trajectory analysis of atmospheric transport of fine particles, SO<sub>2</sub>, NO<sub>x</sub> and O<sub>3</sub> to the SMEAR II station in Finland in 1996–2008

scholarly article

Vertical characterization of highly oxygenated molecules (HOMs) below and above a boreal forest canopy

scholarly article

Warming-induced increase in aerosol number concentration likely to moderate climate change

article

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