Publications by authors named "Yi-Jin Qi"
Article Synopsis
- An online gas chromatograph (GC5000) monitored volatile organic compounds (VOCs) in Zhengzhou City from May to September 2022, focusing on their relationship with ozone (O) levels and meteorological conditions.
- The study found that high ozone pollution levels in June and September were linked to unfavorable weather conditions and elevated local concentrations of VOCs and NO.
- Analysis revealed that the average VOC concentration during the campaign was higher on days with ozone exceeding standards, with a significant portion of VOCs being oxygenated volatile organic compounds (OVOCs), highlighting the need to address emissions during morning and evening peaks.
To understand the characteristics and potential hazards of volatile organic compounds (VOCs) emitted from different industrial factories in Zhengzhou, several representative factories have been selected for sample collection using canisters; the samples were subsequently analyzed by GC-MS/FID system, from which the composition and risk of VOCs are discussed in this study. It was found that OVOCs, especially ethyl acetate and isopropanol, were the most important species originating from printing factories, which accounted for more than 93.1% of total VOCs.
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