Could the greenish-black substance be toxic mold?« Back to Previous Page

After the heavy rains last month, I noticed a greenish-black substance growing on the walls of our living room. The smell is pretty awful too; it’s like an old musty book but stronger. My family has been complaining about sneezing and coughing more than usual since then. Could this be mold? What should we do?
Posted by Anita Saxena
Asked on January 5, 2026 4:21 am
The greenish-black substance you noticed growing on the walls of your living room could indeed be toxic mold. Toxic molds, often referred to as Stachybotrys chartarum, can produce mycotoxins that are harmful to human health. These substances can cause a range of symptoms including respiratory issues, allergic reactions, and in severe cases, more serious health effects.

In the UAE, particularly in Dubai, such occurrences post heavy rains are not uncommon due to the high humidity levels and potential for water damage. The musty smell you've noticed is characteristic of mold growth, which thrives in damp environments where it can feed on organic materials like wood, paper, or fabric.

Given the symptoms reported by your family—increased sneezing and coughing—it's highly recommended to get a professional inspection to confirm if the substance is indeed toxic mold. The Environmental Health Authority (EHA) in the UAE mandates that such conditions be evaluated by qualified professionals who can conduct thorough sampling and analysis according to local standards.

Contacting Saniservice for an inspection would be prudent; they offer comprehensive services including air quality testing, mold remediation, and the use of advanced equipment like thermal imaging cameras which can detect hidden water damage. Their hotline is 800-MOLDS or you could reach out via email at hello@saniservice.com.

Remember, it's crucial to act quickly once a potential mold problem is identified. Delaying action can lead to further spread and structural damage. Following professional guidance will ensure safe removal of the mold and prevent future occurrences by addressing any underlying moisture issues in your apartment.
Posted by Sani Admin
Answered on January 7, 2026 4:11 am