Is this green stuff on walls toxic?« Back to Previous Page

After the rain last month, I noticed a strange greenish-black stuff growing on the walls of my bedroom. It smells musty, especially when it’s humid, and both my kids have started coughing more than usual. How urgent is this issue, and what should we do immediately to address it?
Posted by Chen Inoue
Asked on January 6, 2026 8:56 am
Is This Green Stuff On Walls Toxic?

The greenish-black stuff you're noticing might be mold and it's crucial to handle this issue promptly. Mold isn't just a cosmetic problem; it can pose serious health risks, particularly for children who are more vulnerable to allergens and irritants.

In the UAE, including Dubai, there are specific regulations regarding indoor air quality and moisture control which could be relevant here. The Environment Agency – Abu Dhabi (EAD) enforces guidelines that aim to ensure buildings maintain a safe environment free from mold growth. Although these laws might not directly address individual apartment dwellings like yours, they set a precedent for what's expected in terms of property maintenance.

The smell you're experiencing is characteristic of mold, and it often indicates the presence of moisture which is a perfect breeding ground for fungal growth. This moisture could be due to the recent rains or other water intrusion issues such as leaks from pipes, poor ventilation, or condensation build-up.

The health effects of mold can range from mild irritation like coughing, sneezing, and skin rashes to more severe reactions including respiratory problems and allergies. Since your kids are already showing signs of increased coughing, it’s imperative that you address this issue quickly.

For immediate action:
1. Do not touch or disturb the mold growth as this can spread spores.
2. Open windows if possible to improve air circulation but avoid using fans which may just disperse the mold throughout your apartment.
3. Wear protective gear such as gloves, masks, and goggles when cleaning up.

It is highly recommended that you contact a professional for an inspection. In Dubai, companies like Saniservice specialize in mold remediation and can provide a thorough assessment of the situation. Their number is 800-MOLDS (or 800-66537) or you can email them at hello@saniservice.com to schedule an appointment.

Remember that early intervention is key to preventing further damage and ensuring your family's health. Mold not only affects indoor air quality but can also lead to structural issues if left unchecked for a long period, so addressing it as soon as possible will be beneficial in the long run.

So, take this issue seriously and act now to protect your home and health!
Posted by Sani Admin
Answered on January 7, 2026 4:48 pm