You shoud learn about what mold is and where it thrives. All molds are fungi, and share biology with mushrooms and lichens, for example. The mold that is dangerous to people is rare in the fungi world, meaning most kinds aren't dangerous. However, some are dangerous, so any mold you find indoors must be mitigated and completely removed.
The best plan is to contact a black mold removal company Haverstraw NY company to get rid of the mold if it is more than 3 square feet.. If you see mold, there is probably more behind walls, in attics and elsewhere.
Before you select any company, check that they are certified properly and that they are certified by organizations such as the Contractor Connection, Restoration Industry Association and the Institute of Inspection, Cleaning and Restoration. You might also make sure the company knows and follows federal mold cleanup recommendations whether your mold is in a business or a residence.
You should mitigate any mold growth you find to prevent further toxicity risk, and do it now. If not, mold growths will continue to feast on your structure and can destroy your things.
black mold removal company Haverstraw NY