Air is full of DNA

Article

• Researchers detect environmental DNA (eDNA) floating freely in air samples.
• Technique can identify species — including humans — from ambient air.
• Raises potential for passive biodiversity monitoring and forensic use.

Discussion

• Forensic implications raised: high-cycle PCR amplification could produce false matches from airborne DNA.
• Genome sequencing cost collapse enables this research at scale.
• Commenter notes air samples likely contain DNA of species unknown to science.

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