Two Bacteria Team Up for Electrochemical Signals

New E. coli bacteria can detect specific chemical pairs by making electricity. This could lead to cheap sensors for water testing and health.

#EcoliBiosensors, #ChemicalDetection, #EnvironmentalMonitoring, #LowCostSensors, #ScienceBreakthrough

https://newsletter.tf/e-coli-bacteria-make-electricity-to-detect-chemicals/

Scientists have made E. coli bacteria that produce electricity when they detect certain chemicals together. This is like a tiny alarm system for pollution or disease.

#EcoliBiosensors, #ChemicalDetection, #EnvironmentalMonitoring, #LowCostSensors, #ScienceBreakthrough
https://newsletter.tf/e-coli-bacteria-make-electricity-to-detect-chemicals/

We breathe over 10,000 liters of air every day – with no idea what's in it.
Our DL-PM sensor has been measuring particulate matter continuously for five years. The data shows winter inversions, New Year's Eve spikes, and that air quality has no quiet season.
The patterns only emerge when you measure continuously.

👉 Check real-time demo: https://demo.decentlab.com/d/DL-PM/dl-pm-particulate-matter-temperature-humidity-and-barometric-pressure-sensor-for-lorawan-r?orgId=1&refresh=15m

#ParticulateMatter #LoRaWAN #EnvironmentalMonitoring #AirPollution

This is early days. We're looking for people who want to place sensors in their homes, streets, and communities.

Follow along here, or visit wesense.earth to learn more.

#OpenScience #Environment #OpenHardware #AirQuality #CitizenScience #Decentralised #Meshtastic #IoT #WeSense #NewZealand #Aotearoa #NZ #Auckland #AirQuality #Homelab #EnvironmentalMonitoring

What we measure: air quality, PM2.5, CO2, temperature, humidity, and more — reported every 5 minutes to a global P2P network.

No central server owns the data. If we disappeared tomorrow, the network and data survive. #OpenScience #Environment #OpenHardware #AirQuality #CitizenScience #Decentralised #Meshtastic #IoT #WeSense #NewZealand #Aotearoa #NZ #Auckland #AirQuality #Homelab #EnvironmentalMonitoring

56 initiatives from 20 countries across 5 continents applied to the CitiObs Fellow Cases Open Call! 🌍

Today we’re welcoming the selected initiatives to the CitiObs onboarding workshop, starting a new phase of collaboration in citizen-led environmental monitoring.

Stay tuned to discover the initiatives joining the network.

#CitizenScience #EnvironmentalMonitoring #CitiObs #OpenScience

How did Calgary respond to the wet summer of 2025?
Here’s the median summer NDVI map derived from Sentinel-2 imagery.
You can clearly see the Bow River corridor, Nose Hill Park, and the contrast between established tree-rich communities and newer developments.

Full analysis here:
https://www.datastory.org.ua/how-much-greener-is-calgary-in-2025/

#Geospatial #NDVI #UrbanClimate #Calgary #RStats #GreennessOfCalgary #yyc #Apberta #QGIS #foss4g #EnvironmentalMonitoring #UrbanHealth

Analysis of seawater for DNA of rare and endangered hammerhead sharks has been used to infer their presence or absence at multiple locations throughout their range. No sharks were captured or observed; accuracy of the inferred distributions depends on the presumed degradation of environmental DNA in hours or days.

Summary: https://scitechdaily.com/scientists-find-endangered-hammerhead-sharks-without-seeing-a-single-one/

Original paper: https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2025.1688088/full

#Science #MarineScience #EnvironmentalMonitoring #EnvironmentalDNA #Hammerheads