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"‘Forever chemicals’ contaminate more dolphins and whales than we thought – new research"
#PFAS #ForeverChemicals #Animals

‘Forever chemicals’ contaminate more dolphins and whales than we thought – new research
The sex and age of an animal turn out to be stronger predictors than habitat for higher PFAS levels, suggesting they accumulate over a lifetime.

👨🏿‍🌾 Traces of old farm chemicals contaminate water across the US
#chemicals

Traces of old farm chemicals contaminate water across the US
Even though it delivers airtight data and analysis essential for understanding and managing the risks industrial societies pose to water, land, and health, the US Geological Survey is a federal science agency that rarely attracts public notice.

Extracting the photon indistinguishability error from measurable quantum observables
Franciscus H. B. Somhorst, Jason Saied, Eleanor G. Rieffel, Jelmer J. Renema
https://arxiv.org/abs/2510.01731

Extracting the photon indistinguishability error from measurable quantum observables
We present a method to extract the photon indistinguishability error from Hong-Ou-Mandel interference measurements, accounting for the combined effects of loss and multiphoton noise that contaminate the single-photon Hilbert space. Our analysis resolves apparent inconsistencies in previous interpretations of such measurements. The reported method applies to a wide range of single-photon sources, including quantum dots.