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1

The influence of house plants on indoor CO2

100%
Sevik H., Cetin M., Guney K., Belkayali N.
Polish Journal of Environmental Studies
|
2017
|
tom 26
|
nr 4
This study aimed at determining the effect of carbon dioxide (CO₂ ) in the internal environment of different indoor plants. Spathiphyllum (Spathiphyllum floribundum Schott), Yucca (Yucca elephantipes Regel), Dieffenbachia (Dieffenbachia amoena Gentil), and Ficus (Ficus benjamina L.) are frequently used in studies of indoor plants that examine light temperature depending on leaf surface and the effects of CO₂ in the studied environment. As a result, decreases in CO₂ were at the highest level in Ficus, and Dieffenbachia at 25ºC, followed by Spathiphyllum at 25ºC and Yucca at 20ºC. The amount of photosynthesis increased the leaf surface. For this reason, they reduced the amount of CO₂ by increasing the amount of photosynthesis. The plant leaf surface was standardized, and calculations were made to meet the objective and the amount of CO₂ in the local environment. Based on these calculations, it was determined that the greatest reduction of CO₂ comes from the Ficus plant. In conclusion, the same layer as the surface are 1 m² leaf surface from Ficus benjamina on 1 m³ without air vent in which the amount of CO₂ in one hour could be reduced to about the level from 2,000 ppm at 25ºC 480.74 ppm and 408.08 ppm at 20ºC.
2

The effect of some indoor ornamental plants on CO2 levels during the day

100%
Sevik H., Cetin M., Guney K., Belkayali N.
Polish Journal of Environmental Studies
|
2018
|
tom 27
|
nr 2
The aim of the present study is to determine the effect of yucca (Yucca elephantipes Regel), dieffenbachia (Dieffenbachia amoena Gentil), and spathiphyllum (Spathiphyllum floribundum Schott) as common types of indoor plants on CO₂ levels in the environment. The study was conducted in a closed environment where air inlet/outlet was absent. As a result, the plants were found to affect the level of CO₂ in the environment to different extents; and while Dieffenbachia began to respire at around 13:00 hrs, yucca and spathiphyllum continued to photosynthesize until 19:00. While dieffenbachia and spathiphyllum could not lower the CO₂ level in the environment to below 500 ppm, yucca could decrease it to 475 ppm in a day. The results of the study demonstrated that CO₂ levels in photosynthesis during the day were 8.3, 5.8, and 1.4 times more in yucca, spathiphyllum, and dieffenbachia, respectively, in comparison with CO₂ levels released through respiration.
3

Effects of forests on amounts of CO2: case study of Kastamonu and Ilgaz Mountain National Parks

100%
Sevik H., Cetin M., Belkayali N.
Polish Journal of Environmental Studies
|
2015
|
tom 24
|
nr 1
The CO₂ cycle on earth in the last 400,000 years shows that CO₂ in the atmosphere increased every 80,000 years and 100,000 years on average and then dropped back later. Although there is 0-0.03% (0-300 ppm) carbon dioxide (CO₂) in the air, it has a vital importance because of its amount and variety. Plants reduce the amount of CO₂ in the atmosphere with photosynthesis. But plants cannot do photosynthesis in winter or night. As a result, they might have a negative impact on the amount of CO₂. In this study, the amounts of air carbon dioxide are measured in forests and urban areas and evaluated depending on season and day or night. Results of our study show that, despite the amount of carbon dioxide decreases in the summer depending on the sunlight, it can double its level at night. In addition to day and night, there is a big difference between the amount of carbon dioxide in terms of summer and winter seasons.
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