Why does my apartment smell like sewage and what can I do to address this issue?

Your apartment may smell like sewage due to a blockage in the Plumbing system or a damaged sewer line. To address this issue, you should first check for any clogs in the drains and clean them using a mixture of baking soda and vinegar. If the smell persists, contact your landlord or a professional plumber to inspect and repair any potential issues in the plumbing system.