H-NMR functional groups & tracers conc., GVB, Ny-Alesund, May2019-Jun2020

Project: Italian National Research Council - Institute of Atmospheric Sciences and Climate Name: Marco Paglione Email: m.paglione@isac.cnr.it Institution: Italian National Research Council - Institute of Atmospheric Sciences and Climate InfoURL: https://metadata.iadc.cnr.it/geonetwork/srv/api/records/0e110925-1f3d-4013-b048-e5a47ca3be6f Source URL: (local files) H-NMR functional groups & tracers conc., GVB, Ny-Alesund, May2019-Jun2020 Unknown tabular digital data -, -, IT ERDDAP, version 2.24, at CNR-ISP https://data.iadc.cnr.it/erddap/tabledap/hnmr_functional_groups__tracers_conc__gvb_nyalesund__may2019jun2020_7bdtje.html https://data.iadc.cnr.it/erddap/tabledap/hnmr_functional_groups__tracers_conc__gvb_nyalesund__may2019jun2020_7bdtje.graph Italian National Research Council - Institute of Atmospheric Sciences and Climate H-NMR functional groups & tracers conc. - GVB, Ny-Alesund - May2019-Jun2020. PM1 organic aerosol functional groups distribution as measured by H-NMR, expressed both in 𝜇molH m-3 and 𝜇gC m-3 (using conversion factors described in Decesari et al., 2007) & mass concentrations of some molecular tracers (namely Methane-sulphonate (MSA), Hydroxy methane-sulfonate (HMSA) Di- and Tri- methyl amines (DMA and TMA)), levoglucosan, expressed in 𝜇g m-3 Unknown https://metadata.iadc.cnr.it/geonetwork/srv/api/records/0e110925-1f3d-4013-b048-e5a47ca3be6f 20190524 20200601 ground condition Complete As needed 11.8942 11.8942 78.9177 78.9177 Uncontrolled dimethyl-amine DMA H-NMR H-NMR functional groups HMSA Hydroxymethane-sulphonate Levoglucosan MA trimethyl-amine methane-sulphonate methyl-amine MSA Organic aerosol organic molecular tracers TMA WSOC CF Standard Name Table v70 time mass_concentration_of_aromatic_functional_groups_in_organic_aerosol mass_concentration_of_anomeric-vynil_functional_groups_in_organic_aerosol mass_concentration_of_h-c-o_functional_groups_in_organic_aerosol mass_concentration_of_h-c-c=_functional_groups_in_organic_aerosol mass_concentration_of_methane-sulphonate_hydrogen_in_organic_aerosol mass_concentration_of_methyl-amines_hydrogen_in_organic_aerosol mass_concentration_of_h-c_functional_groups_in_organic_aerosol mass_concentration_of_aromatic_functional_groups_in_organic_aerosol mass_concentration_of_h-c-o_functional_groups_in_organic_aerosol mass_concentration_of_h-c-c=_functional_groups_in_organic_aerosol mass_concentration_of_methane-sulphonate_carbon_in_organic_aerosol mass_concentration_of_methyl-amines_carbon_in_organic_aerosol mass_concentration_of_h-c_functional_groups_in_organic_aerosol atmosphere_mass_content_of_particulate_organic_matter_dry_aerosol_particles mass_concentration_of_methane-sulphonate_in_organic_aerosol mass_concentration_of_levoglucosan_in_organic_aerosol mass_concentration_of_hmsa_in_organic_aerosol mass_concentration_of_tma_in_organic_aerosol mass_concentration_of_dma_in_organic_aerosol gruvebadet latitude longitude None. CC BY-NC: This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator. Italian National Research Council - Institute of Atmospheric Sciences and Climate Marco Paglione Unknown Mailing and Physical Address

Unknown

Unknown Unknown Unknown Unknown Unknown m.paglione@isac.cnr.it https://data.iadc.cnr.it/erddap/tabledap/hnmr_functional_groups__tracers_conc__gvb_nyalesund__may2019jun2020_7bdtje.graph Web page to make a customized map or graph of the data HTML Contributor Name: Marco Paglione Contributor Email: m.paglione@isac.cnr.it Unknown Unknown Unknown Unknown to 2020-06-01T00:00:00Z Ambient aerosol particles with Dp<1 μm (PM1) were sampled by a High-Volume Sampler (TECORA eco-highvol equipped with digital PM1 sampling inlet, nominal flow 500 lpm) on pre-washed and pre-baked quartz-fiber filters (PALL, Ø= 18cm). Sampling time: 3-4 days per sample for collecting sufficient aerosol loading for the detailed chemical analyses on the filters. 2020-09-30T00:00:00Z After sampling the filters were stored in a freezer and then shipped in thermal insulated boxes to the CNR-ISAC laboratory in Bologna, Italy, where they were kept frozen at about -20º C until extraction and chemical analyses. About half of each filter was used for the off-line characterization by TOC-analyzer, Ion-chromatography and H-NMR (as described in the paper) performed in Bologna. 2021-01-01T00:00:00Z Aliquots of the aerosol extracts were dried under vacuum and re-dissolved in deuterium oxide (D2O) for organic functional group characterization by H-NMR spectroscopy), as described in the present paper and in previous works (i.e., Paglione et al., 2024). The H-NMR spectra were acquired at 600 MHz in a 5 mm tube using a Varian Unity INOVA spectrometer, at the NMR facility of the Department of Industrial Chemistry of the Bologna University. 2022-01-01T00:00:00Z On the basis of the range of frequency shifts, the signals are attributed to H-C containing specific functionalities (Decesari et al., 2000, 2007). Organic hydrogen concentrations directly measured by H-NMR were converted to organic carbon using stoichiometric H/C ratios specifically assigned to functional groups using the same rationale described in previous works (Paglione et al., 2024). The sum of NMR functional group concentrations expressed in C constitutes the total WSOC measured by H-NMR. 2022-01-01T00:00:00Z Some organic tracers were identified in the H-NMR spectra on the basis of their characteristic patterns of resonances and chemical shifts, using for this scope libraries of reference spectra from the literature (of standard single compounds and/or mixtures from laboratory/chamber experiments and/or from ambient field studies at near-source stations). Among such tracers, methane-sulfonic acid (MSA) and low-molecular-weight alkyl amines (namely, di- and tri- methyl amines, DMA and TMA respectively) were quantified, as well as levoglucosan and hydroxy-methane sulfonate (HMSA) 20190524 Point Point CNR-ISP Giulio Verazzo Software Engineer Mailing and Physical Address

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- - - IT - admin@iadc.cnr.it Content Standard for Digital Geospatial Metadata FGDC-STD-012-2002 universal time None. CC BY-NC: This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator.