Publication Date:
2024-02-09
Description:
To understand the characteristics of chemical components and diacids, oxoacids, and α-dicarbonyls in atmospheric aerosols at underground coal fire environment, we collected fine aerosols (PM2.5) in September, October, and December of 2018 from Wuhai, Inner Mongolia, North China, where the underground coal fire occurs severely. The datasets include the concentrations of PM2.5, and carbonaceous components (i.e., total carbon, TC; organic carbon, OC; Elemental carbon, EC; water-soluble OC, WSOC), inorganic ions, and diacids, oxoacids, and α-dicarbonyls and stable carbon isotope ratios of TC and diacids, oxoacids, and α-dicarbonyls in the PM2.5 samples (n =13).
OC and EC were measured using OC/EC analyzer (Sunset Laboratory Inc., USA), based on thermal light reflectance following the IMPROVE protocol of the protective visual environment. The concentration of WSOC was measured using a TOC analyzer (TOC-L, 5000A, Shimadzu, Japan). Inorganic ions were measured using ion chromatography (Thermo Fisher, ICS 5000+). Diacids and related compounds were measured using a capillary gas chromatography (GC; Agilent 7890B). δ13C (‰; PDB) of TC was determined using an elemental analyzer (EA, Flash 2000HT) coupled with a stable isotope ratio mass spectrometer (IRMS, 253Plus), while the compound-specific δ13C (‰; PDB) of diacids, oxoacids, and α-dicarbonyls were determined using the GC-IRMS (Thermo Fisher, Mat253).
Keywords:
201809-12; 2-Oxopropanedioic acid; 3-Oxopropanoic acid; 4-Oxobutanoic acid; 4-Oxoheptanedioic acid; 5-Oxopentanoic acid; 6-Oxooctanoic acid; 7-Oxoheptanoic acid; 8-Oxooctanoic acid; 9-Oxononanoic acid; Adipic acid; Adipic acid, δ13C; AEROS; Aerosol analyzer, Sunset Laboratory Inc., Lab OC-EC Aerosol Analyzer; Aerosol sampler; Ammonium; APsamples_Mongolia2018; Azelaic acid; Azelaic acid, δ13C; Calcium; Carbon, elemental; Carbon, organic; Carbon, organic, water soluble; carbon isotope ratio (δ13C); Chloride; Citraconic acid; Coalfield spontaneous combustion; Date/time end; Date/time start; Dicarboxylic acids; Dodecanedioic acid; Element analyzer, Thermo Scientific Flash 2000 HT; fine aerosols; Fumaric acid; Gas chromatography, Agilent 7890B; Gas chromatography–isotope ratio mass spectrometry (GC-IRMS), Thermo Fisher Scientific, MAT 253; Glutaric acid; Glyoxal; Glyoxal, δ13C; Glyoxylic acid; Glyoxylic acid, δ13C; Inner Mongolia; Ion chromatography (Thermo Fisher ICS 5000+); Maleic acid; Malonic acid; Malonic acid, δ13C; Methylglyoxal; Methylsuccinic acid; Nitrate; Oxalic acid; Oxalic acid, δ13C; Particulate matter, 〈 2.5 µm; Phthalic acid; Phthalic acid, δ13C; Pimelic acid; Potassium; Pyruvic acid; Pyruvic acid, δ13C; Sample ID; Sebacic acid; Sodium; Succinic acid; Succinic acid, δ13C; Sulfate; Terephthalic acid; TOC-5000A analyzer, Shimadzu, Japan; Undecanedioic acid; δ13C, total carbon
Type:
Dataset
Format:
text/tab-separated-values, 569 data points
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