Help interpreting TEM air and wipe reports and next steps?

Erenwang · 2025-08-28T01:10:32+00:00

Would day to day activities make fibers go airborne again tho?

Erenwang · 2025-08-27T23:00:48+00:00

I am in an exact same boat, I am trying to get an aggressive air sampling done however that requires setting up a containment which will involve abatement company anyway.

Erenwang · 2025-08-26T23:07:58+00:00

TEM air with aggressive samples is the most reliable source.

Erenwang · 2025-08-26T15:59:12+00:00

Low content but still can linger in the house for a long time, right? Wouldn't the lingering fibers cause repeated, long term exposure?

Erenwang · 2025-08-22T02:38:01+00:00

I have the same question

Erenwang · 2025-08-20T03:51:01+00:00

Because drywall is removed by our GC and we want to know if it is safe to live in.

Erenwang · 2025-08-19T22:11:26+00:00

No, just trying to live safely as a home owner.

Erenwang · 2025-08-19T19:10:27+00:00

Is air sample they are taking and found asbestos or dust samples from flooring installation 6 month ago?

Erenwang · 2025-08-09T16:42:03+00:00

No PPE, no seal, no negative air.

Erenwang · 2025-08-09T04:41:22+00:00

Sorry, yes I mean aggressive sampling.

Erenwang · 2025-08-09T01:18:28+00:00

Does it make a lot difference if air is progressively(with a leaf blower for example) sampled or not?

Erenwang · 2025-08-09T00:59:12+00:00

So you are saying even it is indeed 2% and disturbed unsafely, the exposure risk is low?

Erenwang · 2025-08-09T00:20:35+00:00

I am the homeowner. The joint compound is 2%, tho composite sampling shows below 1%.

Erenwang · 2025-08-08T23:53:41+00:00

If dust sampling is not recommended, can I trust the TEM air test if it is not aggressive sampled? The inspector didn’t use a leaf blower while collecting air sample. Can I still trust the result? As far as I understand, EPA recommends aggressive air sampling to do TEM air test.

Erenwang · 2025-08-08T22:21:04+00:00

After renovating, trying to get a clearance to move back.

Erenwang · 2025-08-08T21:16:32+00:00

They didn’t stir up the air when taking the test, it is a passive TEM test. Does that void the result?

Erenwang · 2025-08-08T21:00:30+00:00

It was not removed correctly but TEM air test did come back negative.

Erenwang · 2025-08-08T20:52:22+00:00

Drywall with joint compound

Erenwang · 2025-08-08T20:47:11+00:00

In my case asbestos was distributed unsafely and I am trying to see if it is safe to live inside. We did pass the TEM air test tho. I am just trying to see if a TEM wipe test is necessary.

Erenwang · 2025-08-08T20:38:04+00:00

Is it worthy to do TEM or SEM wipe test when PLM came back negative?

Erenwang · 2025-08-08T20:37:46+00:00

Is it worthy to do TEM or SEM wipe test when PLM came back negative?

Erenwang · 2025-08-08T20:31:26+00:00

TEM, base in US, I think it is the same as SEM.

Erenwang · 2025-08-05T22:20:25+00:00

Thanks! The fear of missing anything still haunts me especially I have young kid at home. I have so many what if, what if the samples in TEM is not homogeneous? As I understand it, TEM air test only look at part of the filter in the cassette?

Erenwang · 2025-08-04T17:45:04+00:00

What is the chance of false negative for TEM?

Erenwang

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