What is current state of instrumentation that detect nanoparticles in the environment or lab? For example, if a worker exposed to nanomaterials every day wants to see if they are carrying any home to their children, what instrumentation is available to detect this?

If nanocontamination IS detected, whether airborne, suspended, or accumulated, what instrumentation and remediation techniques exist TODAY to clean up contamination?

If lab-level detection instruments are expensive, what is the outlook for consumer-level testing, like home lead kits or wearable radiation badges?