Airborne DNA: filters yield a city-to-forest census of life and pathogens
A study shows that DNA shed into the air can be captured by standard filters and read with shotgun long‑read sequencing to create a census of organisms in a space, enabling population genetics of wildlife and surveillance for pathogens from samples in Florida and Dublin. The method can identify individual animals from ambient air and detect urban pathogens and plant DNA (e.g., cannabis, poppy, psilocybin mushrooms) in city air, with a two‑day pipeline from filter to analysis using portable equipment. While promising for biodiversity monitoring and early pathogen warning, the approach raises governance and privacy concerns about ambient genetic data and should not be read as evidence of drug use; ethical frameworks are needed before widespread deployment.