| Title: | Remediation of atmospheric sulfur and ammonia by wetland plants: development of a study method |
| Author(s): | Kante M; Lemauviel-Lavenant S; Cliquet JB; |
| Address: | "Normandy University, UNICAEN, INRAE, EVA, Caen Cedex, France" |
| DOI: | 10.1080/15226514.2021.1949264 |
| ISSN/ISBN: | 1549-7879 (Electronic) 1522-6514 (Linking) |
| Abstract: | "In the context of S and N pollutant remediation, this study aimed to develop a methodology to test the ability of wetland plants to reduce atmospheric pollution by S and N. A methodology using (34)S and (15)N-labeled Sinapsis alba compost and five species (trap plants) used to fix volatile compounds was developed. 18.66% of (34)S and 40.63% of (15)N produced by Sinapsis alba compost, equivalent to 67 mg of S and 1611 mg of N, were recovered in trap plants, a negligible proportion of the labeling was found in the culture substrate. (34)S and (15)N atom% excess were two to ten times higher in leaves than in roots. Agrostis stolonifera, Symphytum officinale, and Lythrum salicaria were more efficient to use atmospheric inorganic sources of S and N than Mentha aquatica and Carex riparia. A low concentration of sulfate in the leaf laminas, a high specific leaf area, and a low leaf dry mass content could represent trait patterns that explain higher abilities to fix pollutants. This study confirms that plants can be used to remediate inorganic atmospheric pollution and highlights the importance of plant screening for this environmental function.Novelty statementThe removal efficiency of botanical biofiltration is well-documented for Volatile Organic pollutants, but little is known concerning Volatile Inorganic pollutants, such as SO(2) and NH(3) which can also constitute plant nutrients.We developed a methodology based on the use of (34)S and (15)N-labeled mustard compost to study the ability of wetland plant species to fix volatile N and S pollutants. This methodology was effective as 19% of (34)S and 41% of (15)N lost by mustard compost were recovered in trap plants. Among the species used as 'trap plants' Agrostis stolonifera, Symphytum officinale, and Lythrum salicaria appeared more efficient to use atmospheric inorganic sources of S and N than Mentha aquatica and Carex riparia" |
| Keywords: | "*Ammonia Biodegradation, Environmental Plants Sulfur *Wetlands Atmospheric pollution nitrogen phytoremediation volatilization;" |
| Notes: | "MedlineKante, Mohamed Lemauviel-Lavenant, Servane Cliquet, Jean-Bernard eng 2022/02/19 Int J Phytoremediation. 2022; 24(4):373-383. doi: 10.1080/15226514.2021.1949264. Epub 2021 Jul 10" |
