How to identify mould
Mould is everywhere. Mould is a type of fungus that grows from tiny spores that float in the air. Mould has the ability to grow almost anywhere that spores happen to land and find where they moisture along with a comfortable temperature, which is between 4 and 38 degrees Celsius. Which means that this includes about every damp place in your home.
The easiest form of mould that can be spotted is the most visible type of mould, called mildew, which are black spots at first, but then they often grow into larger colonies of mould. It’s the black stuff you see in the lines of your shower, outdoors, on damp walls, and on the surfaces of deck boards and painted siding, especially in the shaded, damp areas. A surface that is suffering from mildew is often difficult to distinguish from a dirty one. A way to test if it is mildew rather than just dirt, dab a few drops of bleach to the area. If the area becomes lighter after one to two minutes, it is mildew, if not, it is just dirt.
Mould is a fungus
Mould is a type of fungus. Mould is present almost everywhere, including the air, which means that it can spread easily. Low levels of mould outside will not pose a substantial health risk to you so long as your immune system function is relatively healthy.