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Old 06-04-2007, 09:57 PM   #1
Claudine
 
Default little black dots

Hello,
I hope you can help me solve this mystery.
Over the last two weeks, black dots have appeared on many surfaces in
my apartment: in the sink, counters, on some walls, and heavily on the
kitchen and bathroom floors, which are linoleum and tile respectively.
When I've swept the floor, half of what I pick up are these dots,
there will be hundreds. the rest of the apartment is hardwood, so they
may be there and I just don't see them. I've wiped them off and they
keep coming back.

They are all the same size (about a mm in diameter) and are perfectly
round. They don't appear to dissolve in water, and are very flat, and
very black. They will adhere to the surface, but will come off in one
piece with scrubbing. They are not evenly distributed, they will
appear in clumps. I assumed they were insect related, and from reading
other posts, it could be left by flies, but I'm puzzled in that I
haven't seen any evidence of flies, moths, or any other pest. And
there are so many dots, seems that I have an infestation.
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Old 06-04-2007, 09:57 PM   #2
Vilma
 
Default Re: little black dots

On 16 Nov 2004 13:50:22 -0800, Claudine babbled:

> Hello,
> I hope you can help me solve this mystery.
> Over the last two weeks, black dots have appeared on many surfaces in
> my apartment: in the sink, counters, on some walls, and heavily on the
> kitchen and bathroom floors, which are linoleum and tile respectively.
> When I've swept the floor, half of what I pick up are these dots,
> there will be hundreds. the rest of the apartment is hardwood, so they
> may be there and I just don't see them. I've wiped them off and they
> keep coming back.
>
> They are all the same size (about a mm in diameter) and are perfectly
> round. They don't appear to dissolve in water, and are very flat, and
> very black. They will adhere to the surface, but will come off in one
> piece with scrubbing. They are not evenly distributed, they will
> appear in clumps. I assumed they were insect related, and from reading
> other posts, it could be left by flies, but I'm puzzled in that I
> haven't seen any evidence of flies, moths, or any other pest. And
> there are so many dots, seems that I have an infestation.


It's probably mould. Use a dilution of bleach to wipe over it or get some
proper mould killer.
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Old 06-04-2007, 09:57 PM   #3
Gary V. Deutschmann, Sr.
 
Default Re: little black dots

Hi Claudine

Did they begin appearing about the same time you started using your
heating system for the heating season?

In other words, can they be coming out from the ductwork?

Are they oily and/or smear, or do they remain intact like paper punch
residue?

Try this on some that are in the sink:
Drop a few drops of hydrogen peroxide on one, does it turn white?
Drop a few drops of chlorine bleach on one, does it disappear?
Or did it stay black and appear unchanged?

If it stayed black, it's probably soot from the furnace.
If it turned white, it's probably an organic (airborne) mold, like the
type that attacks damp clothes in a hamper.
If it disappeared, it's probably a fungal type (surface) mold, similar
to the moss that grows on the north side of house or tree.

If it's the latter two, a good dehumidifier will help keep it away
after it is eradicated.

TTUL
Gary

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Old 06-04-2007, 09:57 PM   #4
Claudine
 
Default Re: little black dots

> It's probably mould. Use a dilution of bleach to wipe over it or get some
> proper mould killer.


I suppose anything is possible, but I find this highly unlikely, since
I live in a dry environment, and it's popping up on surfaces that
don't otherwise touch water. I swept my hardwood floor and there were
lots. Thanks for the reply!
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Old 06-04-2007, 09:57 PM   #5
Gary V. Deutschmann, Sr.
 
Default Re: little black dots

Hi Claudine

I forgot to ask, do you have any kids that may have a toy that these
dots are a byproduct of?

Or perhaps a husband with some type of scrapbooking hole punch?

TTUL
Gary

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Old 06-04-2007, 09:57 PM   #6
Lloyd Randall
 
Default Re: little black dots

In article <ff5fcf13.0411171150.16056af5@posting.google.com >,
minyming@hotmail.com (Claudine) wrote:

> > It's probably mould. Use a dilution of bleach to wipe over it or get some
> > proper mould killer.

>
> I suppose anything is possible, but I find this highly unlikely, since
> I live in a dry environment, and it's popping up on surfaces that
> don't otherwise touch water. I swept my hardwood floor and there were
> lots. Thanks for the reply!


Outdoors in spring and fall, cars and walls can get covered with what
look like spots of black paint about 1 mm in diameter. They come from
the artillery fungus. It grows in composting matter such as leaves.
The spots are spores mixed with glue. The fungus can throw these spots
several yards.

Are there potted plants nearby that might have this fungus in the soil?

--
Best Regards,
Lloyd
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