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Environ Sci Pollut Res Int

Title:		Novel insights into indoor air purification capability of microalgae: characterization using multiple air quality parameters and comparison with common methods
Author(s):		Wang Q; Li L; Hong Y; Zhai Q; He Y;
Address:		"Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China. Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China. Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China. yuhong829908@gmail.com. Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China. yuhong829908@gmail.com"
Journal Title:		Environ Sci Pollut Res Int
Year:		2023
Volume:		20230214
Issue:		17
Page Number:		49829 - 49839
DOI:		10.1007/s11356-023-25799-8
ISSN/ISBN:		1614-7499 (Electronic) 0944-1344 (Linking)
Abstract:		"Indoor air purification received more attention recently. In this study, the effects of six common indoor ornamental plants (Epripremnum aureum, Chlorphytum comosum, Aloe vera, Sedum sediforme, Cereus cv. Fairy Castle, and Sedum adolphii) and three kinds of microalgae (Chlorella sp. HQ, Scenedesmus sp. LX1, and C. vulgaris) on the removal of four types of air pollutants (particulate matters less than 2.5 (PM(2.5)) and 10 mum (PM(10)) in size, formaldehyde (HCHO) and total volatile organic compounds (VOC(S))) in test chamber compared with common physical purification methods (high efficiency particulate air filter and nano activated carbon absorption) were investigated. Their effects on oxygen, carbon dioxide, and relative humidity were also evaluated. The results showed that microalgae, especially C. vulgaris, was more suitable for removing PM(2.5) and PM(10), and the removal rates were 55.42 +/- 25.77% and 45.76 +/- 5.32%, respectively. The removal rates of HCHO and VOCs by all three kings of microalgae could reach 100%. Part of ornamental plants took a longer time to achieve 100% removal of HCHO and VOCs. Physical methods were weaker than ornamental plants and microalgae in terms of increased relative humidity and O(2) content. In general, microalgae, especially C. vulgaris could purify indoor air pollutants more efficiently. The above studies provided data and theoretical support for the purification of indoor air pollutants by microalgae"
Keywords:		"*Microalgae *Air Pollution, Indoor/analysis *Chlorella *Air Pollutants/analysis Particulate Matter/analysis Plants *Volatile Organic Compounds/analysis Environmental Monitoring/methods Formaldehyde Indoor air purification Indoor ornamental plants Microalg;"
Notes:		"MedlineWang, Qiao Li, Lihua Hong, Yu Zhai, Qingyu He, Yitian eng 2021ZY75/Fundamental Research Funds for the Central Universities/ 52071030/National Natural Science Foundation of China/ 2017164/Undergraduate Science and Technology Innovation Plan/ Germany 2023/02/15 Environ Sci Pollut Res Int. 2023 Apr; 30(17):49829-49839. doi: 10.1007/s11356-023-25799-8. Epub 2023 Feb 14"