Atmospheric Volatile Organic Compounds (VOCs) in China: a Review

Mozaffar, Ahsan; Zhang, Yanlin

doi:10.1007/s40726-020-00149-1

Cited by 145 publications

(44 citation statements)

References 96 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Furthermore, the available VOC species in the calibration standards control the VOCs detected in each investigation. As a result, the VOC concentrations reported in various investigations must be interpreted with caution [35]. For example, aromatic hydrocarbons (e.g., solvents toluene, benzene, ethylbenzene, xylenes, styrene, and phenol) which come from various sources such as the environment, waste combustion, and paints can be found in both urban and rural areas of human activities, as shown in this study and other studies in selected countries from Asia.…”

Section: Selected Country Of Comparison With Other Studies Performed ...mentioning

confidence: 58%

“…Several VOC species can have different chemical properties. VOC research is primarily undertaken in cities [35], and short-period VOC studies are more common than year-long studies. Furthermore, the available VOC species in the calibration standards control the VOCs detected in each investigation.…”

Section: Selected Country Of Comparison With Other Studies Performed ...mentioning

confidence: 99%

See 1 more Smart Citation

Comparison of Volatile Organic Compound Concentrations in Ambient Air among Different Source Areas around Khon Kaen, Thailand

et al. 2021

View full text Add to dashboard Cite

Volatile organic compounds (VOCs) are a complex group of chemicals that pose a direct risk to human health. They also lead to the formation of other air pollution constituents, including fine particulate matter (PM2.5) and ground level ozone (O₃). The ambient air concentrations of 19 VOCs were measured using multi-day 24 h sampling at two urban sites and two rural sites in the area of Khon Kaen, Thailand. Results showed that most VOCs were at concentrations considered acceptable according to the 24 h average standards established by the Thai Pollution Control Department. The VOC acrolein, however, was detected at concentrations (0.69–1.15 μg/m3) in excess of the 24 h average standard (0.55 μg/m3). Two other VOCs, benzene and 1,3-butadiene, were also detected at elevated levels (1.73–2.75 and 0.18–0.40 μg/m3, respectively) that indicated the potential to exceed the 1-year average standard. VOC concentrations were highest in the urban market monitoring site, suggesting that vehicle exhaust and food preparation using cooking oil at high temperatures may have been potential sources of the elevated VOCs.

show abstract

Section: Selected Country Of Comparison With Other Studies Performed ...mentioning

confidence: 58%

Section: Selected Country Of Comparison With Other Studies Performed ...mentioning

confidence: 99%

Comparison of Volatile Organic Compound Concentrations in Ambient Air among Different Source Areas around Khon Kaen, Thailand

et al. 2021

View full text Add to dashboard Cite

show abstract

“…有关 [30] 生成的重要前体物，可在光解反应后参与 O 3 的生成 [22] 。从全国平均水平来看，HO x 在 O 3 重污染情况下浓度可达 21 ppt，对比年平均值(5.5 ppt)上升率为 218%，这也与之前疫情期间的研究结果较为接近 [18,30] (主要 VOCs 的一种)光解过程也是主要的贡献者 [46,47] 。降低重点行业的 VOCs 排放，可降低 HO x 的生成速率，从而减低二次污染。从 HO x 的汇过程可以看出(图 3b) ，OH+NO 2 的途径是 HO x 主要的汇，50%以上的 HO x 通过此途径生成稳定的 HNO 3 产物被移除，和之前研究结果相符合 [18] 。在 NCP，此路 [9]…”

Section: National Centers For Environmental Prediction (Ncep) Fnl Operational Model Globalunclassified

Atmospheric oxidation capacity and its contribution tosecondary pollutants formation

Wang¹,

Zhu²,

Zhang³

et al. 2021

Chin. Sci. Bull.

View full text Add to dashboard Cite

“…As a safe and pollution-free environmental protection coating, it basically contains no volatile substances and has no unfriendly odor [ 6 , 7 ]. With the increasingly strict control of indoor VOCs standards [ 8 ], the traditional solvent-based coatings are gradually replaced, and the application of natural coatings and waterborne coatings is more and more extensive [ 9 ]. However, it is found that waterborne coatings have some disadvantages such as poor water resistance and mechanical properties [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Urea-Formaldehyde Microcapsule Containing Fluororesin and Its Effect on Performances of Waterborne Coatings on Wood Surface

Yan

Yin

2021

Polymers

View full text Add to dashboard Cite

In order to self-repair the cracks of waterborne coatings on Basswood at room temperature, with fluororesin and waterborne coatings embedded in the shell structure of urea formaldehyde (UF) resin, the microcapsules were fabricated via in-situ polymerization, and the effect of microcapsules on the chroma, gloss, mechanics and repair effect for waterborne coatings on wood was discussed. The results indicated that the coating effect was the most significant when the ratio value of the core materials to the shell material of microcapsules in mass was 0.75, and the agglomeration of particles was the least and the surface was the smoothest when the content of microcapsules was 1.0%. It was negative between the gloss of the film and microcapsule content. The ratio value of the core materials to the shell material in mass and the amount of microcapsules had great influence on the film hardness and adhesion, but had little effect on the impact resistance. When the ratio value of the core materials to the shell material of microcapsules in mass was 0.65 and the addition amount was 4.0–10.0%, the aging resistance of the film was improved most significantly. When the ratio value of the core materials to the shell material of microcapsules in mass was 0.65 and the addition amount was 7.0%, the overall properties of topcoat film on Basswood board was the most significant. It is for the application of fluororesin microcapsules possessing self-repairing effect in waterborne coating on Basswood board that a technical groundwork is provided by this study.

show abstract

Atmospheric Volatile Organic Compounds (VOCs) in China: a Review

Cited by 145 publications

References 96 publications

Comparison of Volatile Organic Compound Concentrations in Ambient Air among Different Source Areas around Khon Kaen, Thailand

Comparison of Volatile Organic Compound Concentrations in Ambient Air among Different Source Areas around Khon Kaen, Thailand

Atmospheric oxidation capacity and its contribution tosecondary pollutants formation

Synthesis of Urea-Formaldehyde Microcapsule Containing Fluororesin and Its Effect on Performances of Waterborne Coatings on Wood Surface

Contact Info

Product

Resources

About