Process-based VOCs Source Profiles and Contributions to Ozone Formation in Typical Organic Solvent-used Industries in Hangzhou

Abstract

The solvent-used industry plays an important role in volatile organic compounds (VOCs) emission, which has caused an increasing concern. Herein, VOCs samples collected before and after treatments from the painting industry, printing industry and dyeing & printing industry in Hangzhou were measured. Then, the VOCs removal efficiencies of different treatments were detailedly investigated. Among them, hightemperature incineration technology achieved the highest VOCs removal efficiency, averaging 93.0%. Process-based source profiles suggested that aromatics and alkanes accounted for more than 76.5% of VOCs, mainly including toluene, styrene, n-decane, n-undecane and n-dodecane. Furthermore, the ozone formation potentials (OFPs) based on processes suggested that toluene, meta-xylene, n-butene, styrene and ortho-xylene should be preferentially controlled to reduce the OFPs in painting industry and printing & dyeing industry. For printing industry, the contributions of top five species to the OFPs were relatively balanced, which indicated these species should all be given more attention. Finally, the low-temperature plasma technology and the combined

Review on Source Profiles of Volatile Organic Compounds (VOCs) in Typical Industries in China

“…This was attributed to the water-based paints and solvent-based paints used in the sampling objects, respectively. Compared with the two studies above, OVOC components were not detected in Li et al [82], probably owing to the loss of OVOC species due to air bag sampling.…”

“…The chemical groups emitted from the printing and dyeing industry are illustrated in Figure 3. The chemical groups emitted from the sector-based surface coating industry and the processbased profiles of the automobile industry are shown in Figure 4 [7,18,34,36,74,[77][78][79][80][81][82]. Most of the measurements mentioned in Figures 3 and 4 were collected in SUMMA canisters and analyzed by GC-MS; thus, the profiles were reliable and highly comparative.…”

“…In previous studies, samples of the chemical industry were mainly collected from the flues of enclosed plants, from stacks, and within production areas of incompletely enclosed plants [32,41]. Usually, product-based VOC profiles were carried out in the basic chemical industry and synthetic material manufacturing industry [28,33,41], whereas the profiles based on solvent properties were extensively studied in the paint and ink production industries [82].…”

Development of a CMAQ-PMF-based composite index for prescribing an effective ozone abatement strategy: A case study of sensitivity of surface ozone to precursor VOC species in southern Taiwan

“…The dominant sources of aromatic-related emissions (XYL, TOL) are mainly attributed to solvent usage and mixed industry. Solvent usage, including building coatings, paint thinners, and other products thinners (Chen et al, 2019;Huang and Hsieh, 2020;Li et al, 2021;Wu et al, 2016) The dominant source of alkane-related emissions (i.e. PAR) is attributed to vehicle emissions in all three stations.…”

Emission of Volatile Organic Compounds from Consumer Products

“…Therefore, the exposure of humans to toxins in an indoor environment is of concern. Most studies determine the VOC emissions from industrial processes and facilities (Chen et al, 2020;Lu et al, 2020;Li et al, 2021) and their effect on ambient air quality (Gao et al, 2020;Guan et al, 2020;Wang et al, 2020;Wu et al, 2021) and the increase in risk to human health but consumer products that are used indoors have a more direct effect on the human inhalation (Even et al, 2020;Moxon et al, 2020;Palmisani et al, 2020). Consumer products contain biogenic VOCs and their emission can be the precursor to the emission of ozone and secondary organic aerosols (Martinsson et al, 2020;Ahn et al, 2021).…”