| | Parameters | Unit | Parameter distribution |
| | Coverage radius of collection centers | km1 | U (15, 80) | | Distance between collection points and pharmacies or hospitals | km | U (1, 20) | | Distance between a pharmacy or hospital and another pharmacy or hospital | km | U (0.1, 2) | | A vast number | | 100,000 | | The capacity of disposal and recycling centers | kg2 | U (20, 60) | | Percentage of pharmaceutical waste that is disposed | | U (0.5, 1) | | Number of vehicles used for the collection of pharmaceutical waste | | Round (U (1, 4)) | | Number of vehicles used for disposing of pharmaceutical waste | | Round (U (1, 4)) | | Cost of disposing and recycling | Mt3 | U (0.0001, 0.0004) | | The variable cost of the vehicle per unit of distance in a tour between collection centers and pharmacies, and hospitals | Mt | U (0.01, 0.02) | | Fixed cost of transportation in a tour between collection centers and pharmacies, and hospitals | Mt | U (7, 18) | | The demand for pharmacies and hospitals | kg | Round (U (30, 60)) | | The capacity of vehicle k | kg | U (100, 150) | | The capacity of collection centers | kg | U (200, 300) | | Capacity of distributors | kg | U (200, 400) | | Cost of construction of collection points | Mt | U (100, 300) | | Cost per unit of carbon dioxide consumption | Mt | U (3, 7) | | Amount of carbon dioxide that vehicles consume in the tour between collection centers and pharmacies, and hospitals per unit distance and each unit of weight | kg | U (0.2, 1) | | Amount of carbon dioxide that vehicles consume in the tour between collection centers and recycling and disposal centers, and airports per unit distance and each unit of weight | kg | U (0.1, 0.99) | | Distance between collection points and disposal and recycling points | km | U (30, 100) | | Distance between disposal and recycling centers | km | U (30, 100) | | The variable cost of the vehicle per unit of distance in a tour between collection centers and recycling and disposal centers | Mt | U (0.1, 0.4) | | Fixed cost of transportation in a tour between collection centers and recovery centers | Mt | U (10, 30) | | Distance between airport f and collection center r | km | U (200, 245) | | Transportation cost between collection points and airports | Mt | U (20, 30) | | Existing amount of pharmaceutical waste in pharmacies and hospitals | kg | demi = (l, m, u)
l∼U (1, 2)
m∼U (3, 4)
u∼U (5, 7) |
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