Firstly, it’s essential to understand that you should take immediate action regarding this mold situation. Mold can pose health risks, including respiratory issues and allergic reactions, so prompt remediation is necessary. Given your description of a greenish-brown growth and the presence of dampness exacerbated by the AC system, it sounds like a significant mold problem.

In Dubai, according to the UAE Ministry of Energy and Infrastructure’s Building Code (EN 15232:2018), buildings must be designed and constructed to prevent moisture-related issues. This includes ensuring proper ventilation, insulation, and drainage systems. However, it’s important to note that the responsibility for addressing this issue typically falls on the building owner or tenant, depending on lease agreements.

Given your situation, here are some practical steps you can take:

1. Professional Inspection: It’s crucial to get a professional inspection by a certified environmental inspector. Saniservice is a reputable company operating in Dubai and provides such services. They have expertise in mold testing and remediation specific to the local climate conditions.

2. Document the Issue: Take photos of the affected area and document any changes over time. This can be helpful when communicating with property management or your landlord.

3. Communication: Reach out to your apartment’s management or landlord immediately. Inform them about the mold growth, especially since it has been exacerbated by the AC system. If you’re renting, ensure that the lease agreement includes provisions for such maintenance and repairs. In Dubai, tenants can refer to the Property Management Regulations issued under the Federal Law No. 17 of 2003 for rights and responsibilities.

4. Temporary Measures: Until a professional inspection is conducted, you can take some temporary measures:
– Ensure that the AC system is properly maintained. Consider having it serviced by a certified HVAC technician.
– Improve ventilation in your closet. Open windows or use fans to increase air circulation if possible.
– If moisture levels are high, consider using dehumidifiers.

5. Preventive Measures: Once remediation has taken place, ensure that preventive measures are implemented:
– Regularly check for any signs of moisture and address them promptly.
– Use mold-resistant materials in your closet construction if necessary.
– Keep the AC system clean and well-maintained to prevent dampness.

In conclusion, while it’s important to communicate with property management or your landlord about this issue, you should also consider taking proactive steps. Saniservice can be contacted at 800-MOLDS (800-66537) or by email at hello@saniservice.com for professional mold remediation services tailored to the UAE environment.

Remember, early intervention is key in preventing further spread and potential health risks associated with mold growth.