To improve the sanitary facilities of the community and address the environmental hygiene issues, including the foul smell of street rubbish bins, pest and rat infestation, as well as garbage strewn about by scavengers, the IAM has installed compacting trash bins and set up enclosed garbage chambers in suitable locations in different districts in Macao. In addition, IAM regularly sends its staff for on-site inspections of these refuse collection facilities to ensure they function properly, thus improving the overall sanitation in Macao.