From the questionnaire survey and data interpretation as can be seen in both table 1, Firstly, the question number one that people think that plastic waste management is not essential for them, they can do or not it. It may be one of reasons that caused of the plastic waste problem. Next, the data show that they sometimes eat food at restaurant or cafeteria for reduce the use of plastic products (M = 3.46). This is shown in question number two that nowadays, people tend to hurry to go to work or study. This cause rarely has time to eat at the restaurant or cafeteria. So, they cannot refuse to use of plastic products. Lastly, question number three signifies that some people participate activities that promote about the way to reduce plastic waste problem on sometime (M= 2.88). Finally, the quantity of plastic waste problem can be reduced by considering from the behavior that is mentioned above.
In additional to the questionnaires, interview question were also taken into account. The interview question shows that the interviewees have a good attitude to help to reduce plastic waste problem. They know plastic waste problem are important, so they have a behaviors to useless plastic products. For example, they often carry cloth bag to go to buy an anything instead plastic bag. Furthermore, they are behaviors show that they are aware to this problem.
To sum up, it can be conclude that the awareness to this problem; behavior that they use plastic product and manage the plastic waste. The data show that 68 percent of people know how to get rid of plastic waste and they know the importance of plastic waste problem. However their behaviors also can’t help reduce plastic waste problem. Therefore, possible solutions of this problem are people should get knowledge and cultivate the mind under realization about using plastic products, such as plastic water bottles that were used, then it can be reused again. Furthermore, eating at the canteen or restaurant. It can helps reduce plastic waste problem. If people know to manage their own time, they will have time for eating at the canteen or restaurant and also can refuse using plastic boxes. Finally, the state agency should provide activities to reduce the quantity of plastic waste by focusing on the practice as the main, and persuade people to participate in the activities by having the award as the compensation, such as Mae Fah Luang university have the project changed the plastic waste to hours activity, that make the students interested in the activities more and more. The stated solutions could help reduce the plastic waste problem.