Louis Ng Kok Kwang inquired about the feedback statistics on second-hand tobacco smoke received by the National Environment Agency (NEA) over the past three years. Grace Fu Hai Yien reported a decline in such feedback, with 900 instances in 2021, 260 in 2022, and 120 in 2023, making up 2.6%, 1.2%, and 0.6% of total feedback, respectively. The NEA's online feedback system is designed for various environmental issues, and there are no plans to create a specific category for second-hand tobacco smoke from neighbors.