Phytoremediation of BTEX from indoor air by Hyrcanian plants
Journal Title: Environmental Health Engineering and Management Journal - Year 2019, Vol 6, Issue 4
Abstract
Background: Phytoremediation is one of the available and simple techniques for removing benzene, toluene, ethylbenzene, and xylene (BTEX) from indoor air. This study aimed to evaluate phytoremediation of low concentrations of BTEX by Hyrcanian plants including Ruscus hyrcanus and Danae racemosa. Methods: The test chamber was used to evaluate the removal of BTEX. Benzene, toluene, ethylbenzene, and xylene were injected into the chamber using Gastight syringes (Hamilton) to generate the concentration of 10 (benzene), 20 (toluene), 20 (ethylbenzene), and 50 (xylene) μL/L Results: Ruscus hyrcanus was able to remove BTEX (10, 20, 20, and 50 μL/L) from air after 3 days. D. racemosa could uptake BTEX (10, 20, 20, and 50 μL/L) from air after 4 days. Removal efficiency was calculated based on leaf area and volume of the chamber. R. hyrcanus showed the highest removal efficiency ranged from 8.5075 mg/m3/h.cm2 for benzene to 86.66 mg/m3/h.cm2 for xylene. The increase in BTEX phytoremediation was assessed after repeated exposures. A significant phytoremediation efficiency was obtained after the third injection of BTEX to the chamber. Afterwards, the effects of BTEX on anatomical and morphological structure of plants were studied. The results of Photomicrography showed that tissue structures of leaves and stems changed. Study of D. racemosa and R. hyrcanus stems showed that vascular bundles also changed. The development of crystal in vacuole of spongy parenchyma was the main anatomical change of R. hyrcanus and D. racemose compared to the control samples. Conclusion: It can be concluded that R. hyrcanus and D. racemosa can be used for phytoremediation of indoor air pollution.
Authors and Affiliations
Mahta Fooladi , Roxana Moogouei , Seyed Ali Jozi , Farideh Golbabaei , Golnaz Tajadod
Keywords
Related Articles
- EP ID EP676157
- DOI 10.15171/EHEM.2019.26
- Views 271
- Downloads 0
Evaluation of groundwater vulnerability to pollution using DRASTIC, composite DRASTIC, and nitrate vulnerability models
Background: Groundwater protection against pollution is a very important issue. Groundwater vulnerability maps are useful tools for protecting aquifers and assessing the potential for contamination. Therefore, the purp...
Moisture-proof masks as a potential source to prevent COVID-19 during the rainy season
This article has no abstract
Identification of airborne fungi’s concentrations in indoor and outdoor air of municipal wastewater treatment plant
Background: Airborne fungi play an important role the quality of indoor and outdoor air. The aim of this study was to investigate the concentration of airborne fungi around different parts of the wastewater treatment p...
Removal efficiency of nitrate, phosphate, fecal and total coliforms by horizontal subsurface flow-constructed wetland from domestic wastewater
Background: Constructed wetlands are systems designed based on the utilization of natural processes, including vegetation, soil, and their associated microbial assemblage to assist in treating different types of wastew...
Worldwide arsenic levels in human breast milk and probabilistic health risk assessment: A systematic review and meta-analysis
Background: The exposure to toxic metals is a major global health concern due to their stability, bioaccumulation, and high toxicity. These metals can be transmitted to the fetus through the placenta and exposure can l...