Table 2.
Weibo topics and comments after filtering.
| Type | Topic | Comments | Proportion |
|---|---|---|---|
| Before the policy enforcement (19 January 2020–30 December 2020) | Plastic straws will be banned by the end of the year | 11,744 | 82.08% |
| Some plastic products will be banned or restricted | 284 | 1.98% | |
| Nondegradable disposable plastic straws are prohibited in the catering industry | 381 | 2.66% | |
| Nondegradable disposable plastic straws prohibited in Shanghai | 886 | 6.19% | |
| Shanghai’s new plastic limit | 680 | 4.75% | |
| Chengdu’s strongest plastic limit order is coming | 332 | 2.32% | |
| After the policy enforcement (1 January 2021–30 April 2021) | Consumers complain about paper straws for milk tea | 19,585 | 47.6% |
| KFC uses wooden spoons | 11,295 | 27.45% | |
| First day of the plastic straw ban | 1524 | 3.7% | |
| Happiness deprived by paper straws | 411 | 0.99% | |
| Why I hate paper straws | 8326 | 2.02% |