Indoor plants that are known to survive in low light environments and also improve indoor air quality by removing some of the indoor air pollutants. Most plants perform photosynthesis and release oxygen during the day and during the night release CO2 during the respiration process.
1. Does the same scenario occur in indoor plants?
2. If so, what amount of oxygen is released during the day and the CO2 emitted during the night from the particular leaf area?
2a. Is there any ration between oxygen and carbon-di-oxide release?
2b. If so, the ratio is same for indoor and outdoor plants?
3. If not and then the houseplants also release O2 overnight. So, what is the mechanism behind this?
in the night plants cannot do photosynthesis as for this sunlight is required. Plants then do respiration, which consumes oxygen. then they also produce co2 (which they also do during day, but only during day they have photosynthesis.
It is one of the reasons why we should not have many plants in our bedrooms.
Grown plants indoors for years. Yes, during the light cycle plants produce O2 and at night express CO2, but in small amounts. Indoors we vented the O2 and humidity out, taking in "bad" air which in the city was about 350 ppm. In a different growing operation in the suburbs, the CO2 was more in the upper 200 ppm range. OK growth, but considering adding CO2 to promote growth as most greenhouses do. We are warehouse with artificial light, and can control when "day" is
I am doing this kind of experiment, i put a plant inside a box of glass, with co2 sensor, but the data that i got, plant did not decrease the amount of co2, but more likely to maintain it, if i use the lamp, the co2 is increasing rapidly... Whether night or day, without lamp thr co2 decrese but never lower than air outside the box, anyone can help to explain?
I am using mq135 sensor to measure the co2
Basic biochem says the plants are made of carbon, therefore CO2, the bond is broken, the plant takes the C and releases the O2.
The weights are small and depending on your scale might take many days to see any changes in weight. Particles are small and can easily equalize through any small leak. Try a tighter box, and flood with a high CO2 ppm say 800 ppm.
On a larder scale, we would see a marked indoor O2 and a higher outdoor CO2 (city air) measurement and have to do constant air changes.
The conclusion by reading all precious answers, especially Dave Roeser. Yes the do release CO2 at night though in very few quantity, still purifying the indoor pollutants.
Dave Roeser It seems like you need to brush up on your basic biochem then b/c that's a basic misconception. Oxygen is evolved through the oxidation of H2O, not CO2, look up light reaction.
Basic chem, I'll stick with my answer. Unless CO2 is dissolved in the water (which could be the case in Aquaponics) the plant needs a source of carbon. The source of the carbon found in living matter is carbon dioxide (CO2) in the air or dissolved in water. Algae and terrestrial green plants (producers) are the chief agents of carbon dioxide fixation through the process of photosynthesis, through which carbon dioxide and water are converted into simple carbohydrates.
Indoor Aquaponic farms can release the CO2 deposited by the fish through splashing of fountains, waterfalls, etc.
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