| BMW* knowledge | Group I | Group II | Group III | Group IV |
|---|---|---|---|---|
| n= 20(%) | n= 20(%) | n= 20(%) | n= 20(%) | |
| Risks of improper BMW disposal | 15(75) | 17(85) | 11(55) | 9(45) |
| Different categories of BMS waste | 8(40) | 11(55) | 5(25) | 3(15) |
| Colour coding of Waste disposal | 13(65) | 11(55) | 4(20) | 1(5) |
| Importance of Segregation at source | 11(55) | 14(70) | 7(35) | 2(10) |
| Specific disinfection methods before disposal | 8(40) | 11(55) | 3(15) | 2(10) |
| Proper disposal option for various waste | 9(45) | 13(65) | 1(5) | 1(5) |
| Waste disposal regulation in Saudi Arabia | 5(25) | 2(10) | 5(25) | 2(10) |
| BMW regulating agency in Saudi Arabia | 5(25) | 2(10) | 1(5) | 1(5) |
| BMW regulations awareness at your work place | 8(40) | 9(45) | 5(25) | 1(5) |