An Application of Mist Generator as a Way to Reduce Particulate Matter during High Concentration Episodes in Urban Forests
Source abstract
Abstract
Previous conventional mist devices can induce a detrimental effect of leaf burn by intense, focused sunlight in summer. A mist generator is designed to prevent particulate matter (PM) damage to trees by combining mist with PM during high PM episodes. We measured changes in microclimate conditions and the concentration of PM before, during, and after mist spraying in urban parks (Yangjae Citizen Forest, YCF; Cheongdam Road Park, CRP) from May 6 to 8, 2020. PM changes in YCF and CRP were observed immediately after mist spraying and were found to return to the previous concentrations. Mist spraying had no significant effects on the meteorological traits of air temperature, humidity, and wind speed but had significant effects on the concentration of PMx and the ratio of PM during a short time. Also, the ratio of PMx was partially affected by mist spraying. During the morning rush hour and lunch, mist, high wind speed, and low relative humidity conditions were related to the increase in mist movement, resulting in increasing PM (2.5–10 μm) and the deposition of these PM. During the evening rush hour, high relative humidity and low wind speed affected PM concentrations more than mist. This prototype of mist spraying could effectively condense and deposit the PM during high PM episodes.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Urban Green Space and Health · Air Quality and Health Impacts · Urban Heat Island Mitigation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Livable Urban Forests Research Center, National Institute of Forest Science, 57, Hoegiro, Seoul 02455, Republic of Korea
Smarcle Company, 111, Bluetech, 158, Bodemulo, Seo-gu, Incehon-si 22664, Republic of Korea
Funding
National Institute of Forest Science of Korea · Korea Forestry Promotion Institute
References (43)
Show source-provided references
1. Contrasting synoptic weather patterns between non-dust high particulate matter events and Asian dust events in Seoul, South Korea10.1016/j.atmosenv.2019.116864 ↗
2. Model design and demonstration test for the verification of temperature reduction effect cooling fog system with stainless steel10.5322/JESI.2020.29.6.683 ↗
3. Airborne particulate matter and human health: A review10.1080/02786820500191348 ↗
4. Green walls for mitigating urban particulate matter pollution—A review10.1016/j.ufug.2021.127014 ↗
5. The contribution of outdoor air pollution sources to premature mortality on a global scale10.1038/nature15371 ↗
6. Exposure to polycyclic aromatic hydrocarbons in atmospheric PM1.0 of urban environments: Carcinogenic and mutagenic respiratory health risk by age groups10.1016/j.envpol.2017.01.075 ↗
7. Air pollution characteristics and their relationship with emissions and meteorology in the Yangtze River Delta region during 2014–201610.1016/j.jes.2019.02.031 ↗
8. (2024, August 20). Available online: https://eng.me.go.kr/eng/web/index.do?menuId=464.
9. Supplying urban ecosystem services through multifunctional green infrastructure in the United States10.1007/s10980-013-9912-y ↗
10. A framework for assessing urban greenery’s effects and valuing its ecosystem services10.1016/j.jenvman.2017.09.071 ↗
11. Matasov, V., Marchesini, L.B., Yaroslavtsev, A., Giovanna, S., Olga, F., Ivan, S., Simona, C., Viacheslav, V., and Riccardo, V. (2020). IoT monitoring of urban tree ecosystem services: Possibilities and challenges. Forests, 11.10.3390/f11070775 ↗
12. Air pollution removal by urban trees and shrubs in the United States10.1016/j.ufug.2006.01.007 ↗
13. Analyzing the cost effectiveness of Santiago, Chile’s policy of using urban forests to improve air quality10.1016/j.jenvman.2006.11.029 ↗
14. Quantifying the particulate matter accumulation on leaf surfaces of urban plants in Beijing, China10.1016/j.apr.2017.01.011 ↗
15. Influence of tree crown characteristics on the local PM10 distribution inside an urban street canyon in Antwerp (Belgium): A model and experimental approach10.1016/j.ufug.2016.09.013 ↗
16. Particulate matter deposition on roadside plants and the importance of leaf trait combinations10.1016/j.ufug.2016.09.008 ↗
17. Quantifying the effect of urban tree planting on concentrations and depositions of PM10 in two UK conurbations10.1016/j.atmosenv.2007.07.025 ↗
18. Source Characterization and Apportionment of PM10, PM2.5 and PM0.1 by Using Positive Matrix Factorization10.4209/aaqr.2012.04.0084 ↗
19. Forest Filter Effect: Role of leaves in capturing/releasing air particulate matter and its associated PAHs10.1016/j.atmosenv.2013.04.013 ↗
20. Particulate matter adsorption capacity of 10 evergreen species in Beijing
21. Tree moisture stress and insect damage in urban areas in relation to heat island effects
22. Tree growth and resilience to extreme drought across an urban land-use gradient
23. Contrasting response of ultrafine particle number and PM2.5 mass concentrations to Clean Air Action in China10.1029/2021GL093886 ↗
24. Izuta, T. (2017). Effects of Aerosol Particles on Plants. Air Pollution Impacts on Plants in East Asia, Springer.10.1007/978-4-431-56438-6 ↗
25. Effect of vent openings and insect screens on greenhouse ventilation10.1016/j.biosystemseng.2005.01.001 ↗
26. Li, S., Willits, D., and Yunker, C. (2006, January 24–27). Experimental study of a high-pressure fogging system in naturally ventilated greenhouses. Proceedings of the International Symposium on Greenhouse Cooling, Almería, Spain.10.17660/ActaHortic.2006.719.44 ↗
27. Performance of a fog system for cooling greenhouses10.1006/jaer.1998.0351 ↗
28. (2024, August 20). Available online: https://parks.seoul.go.kr.
29. (2024, August 20). Available online: https://airkorea.or.kr.
30. Validation of continuous particle monitors for personal, indoor, and outdoor exposures10.1038/jes.2010.15 ↗
31. Turnkey Instruments Ltd (2024, August 20). Dustmate Operating Instructions. Available online: www.turnkey-instruments.com.
32. The concentrations and reduction of airborne particulate matter (PM10, PM2.5, PM1) at shelterbelt site in Beijing10.3390/atmos6050650 ↗
33. Wu, Y., Liu, J., Zhai, J., Cong, L., Wang, Y., Ma, W., Zhang, Z., and Li, C. (2018). Comparison of dry and wet deposition of particulate matter in near-surface waters during summer. PLoS ONE, 13.10.1371/journal.pone.0199241 ↗
34. On the sensitivity of particle size to relative humidity for Los Angeles aerosols10.1016/0004-6981(89)90593-3 ↗
35. Yoo, S.Y., Kim, T.H., Ham, S.H., Choi, S.M., and Park, C.R. (2020). Importance of urban green at reduction of particulate matters in Sihwa Industrial Complex, Korea. Sustainability, 12.10.3390/su12187647 ↗
36. Fan, H., Zhao, C., Yang, Y., and Yang, X. (2021). Spatio-Temporal Variations of the PM2.5/PM10 Ratios and Its Application to Air Pollution Type Classification in China. Front. Environ. Sci., 9.10.3389/fenvs.2021.692440 ↗
37. Effect of mist treatment on the growth and quality of cut rose “Hanmaum” during summer
38. Improvement of cooling efficiency in greenhouse fog system using the dehumidifier
39. Sase, S., Ishii, M., Hayashi, M., Sabeh, N., Romero, P., and Giacomelli, G.A. (2006, January 24–27). Effect of natural ventilation rate on relative humidity and water use for fog cooling in a semiarid greenhouse. Proceedings of the International Symposium on Greenhouse Cooling, Almería, Spain.10.17660/ActaHortic.2006.719.43 ↗
40. Optics of sunlit water drops on leaves: Conditions under which sunburn is possible10.1111/j.1469-8137.2009.03150.x ↗
41. Combination of forced ventilation and fogging systems for cooling greenhouses10.1016/S1537-5110(02)00216-7 ↗
42. Simulated performance of a greenhouse cooling control strategy with natural ventilation and fog cooling10.1016/j.biosystemseng.2011.11.015 ↗
43. Analysis of temperature influence experiment on green spaces in campus