Is foam box vegetables poisonous?

summary

In many communities, there are basically no flower beds for planting vegetables and flowers, so many people will use their foam boxes to grow vegetables in their own homes. What about the foam boxes and vegetables? What are the matters needing attention in the foam boxes and vegetables?

Is foam box vegetables poisonous?

First: the foam box is made of polystyrene, which is made from styrene monomer suspension polymerization and then added with foaming agent. It is also a kind of plastic. These chemicals can not be decomposed by microorganisms and transformed into ionic nutrients. Plants can not be absorbed, so vegetables grown in foam boxes are not poisonous.

Second: since the vegetables grown in plastic pots and foam boxes are not poisonous, is it possible to use them to grow vegetables without limit? This answer must be negative. For cost considerations, many factories will use some recycled plastics to produce Flowerpots, which have been used twice or even three times, decompose harmful substances such as ethylene, hydrogen sulfide, sulfur dioxide, etc. because they are used for a long time. These substances will enter the body through our respiratory system. If we often use these unqualified plastic flowerpots and inhale and accumulate these harmful substances for a long time, it will certainly bring harm to our body. Therefore, when you choose plastic flowerpots or vegetable pots, please choose high-quality products with light or even tasteless smell.

Third: if you love to use foam boxes to grow vegetables, considering the cost of foam boxes is not high, I would suggest changing every year because the foam box will decompose obviously after a long exposure to sunlight and rain. The surface of the box will produce a very small white dust. If inhaling these dust for a long time, it will definitely affect health. In the following picture, it has been used for two years as a foam box. As long as the hands are rubbed lightly, the dust is immediately glued to the hands. It is difficult to metabolize such tiny objects into the lungs.

matters needing attention

Professionals say that common foam boxes or plastic boxes belong to organic substances. They are relatively stable, and the structure of polymeric molecules is strong and large. Even after exposure to natural high temperature, decomposition is extremely limited, and it is very difficult for plant roots to absorb foam box material. If foam or plastic is toxic, it may refer to additives in foam boxes or plastic boxes, or factories that contain toxic substances such as heavy metals. The foam boxes commonly used for fruit loading should be relatively safe. The foam box is made of polystyrene. It is made from styrene monomer suspension polymerization and added foaming agent. It is a colorless transparent thermoplastic. When the external temperature is higher than 100 degrees, it will naturally soften. When the temperature reaches 200 degrees, it will melt completely into liquid.