Abstract：
:As expanded polystyrene (EPS) has been utilized in soil environments, there is a need to understand interactions between chemical adsorption and the soil system. We conducted a plant bioassay using agricultural crops in a soil system containing a macro-sized EPS (8.3 ± 0.5 mm). When the EPS was collected after cultivation of no crop (control), mung bean, lettuce, and rice, we found that its water absorption rate significantly (p < 0.05) increased after mung bean and rice cultivation as compared to the no crop condition. We expected that these crop-dependent differences would be highly linked with metal adsorption and desorption. However, cadmium (Cd) adsorption percentages (%) from the initial Cd solution were calculated as 15-18% with no significant differences between the different crop cultivation conditions. The desorption percentages also showed low levels of interaction with the crop-dependent water absorption rate. These results provide useful data for better understanding the interaction between plastics and their roles as chemical vectors in the soil system.
journal_name
Chemospherejournal_title
Chemosphereauthors
Kim SW,Kim D,Chae Y,Kim D,An YJdoi
10.1016/j.chemosphere.2018.12.057subject
Has Abstractpub_date
2019-03-01 00:00:00pages
345-350eissn
0045-6535issn
1879-1298pii
S0045-6535(18)32379-8journal_volume
219pub_type
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