#contaminant — Public Fediverse posts

Coupled Hydrological And Public Health Risks From Urban Flooding - Integrated Remote Sensing, Machine Learning, And Hydrodynamic–Ecological Modelling
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https://doi.org/10.1016/j.jhydrol.2026.135999 <-- shared paper
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https://youtu.be/VHzYLvSYR7k?si=5oGGPeH6T0dFusfY <-- recent overview video created about the research
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https://doi.org/10.1016/j.wroa.2025.100396 <-- share (earlier) paper
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H/T @RAHUL DEOPA | Research Scholar (IIT Roorkee)
“… [U]rban floods are not merely hydraulic events; they also transport sewage, pathogens, and other contaminants across streets and communities, leading to significant public health risks…
How do we quantify microbial contamination in near real time during a flood event, when emergency conditions make field sampling unsafe, sparse, or even impossible?...
[The authors] explored whether Earth observation data, combined with machine learning, could bridge this critical monitoring gap. By combining Landsat-derived water surface temperature, machine learning, a coupled MIKE+ Flood–ECO Lab hydrodynamic–ecological model, and Quantitative Microbial Risk Assessment (QMRA), [they] estimated microbial concentrations (𝘌. 𝘤𝘰𝘭𝘪), simulated their fate and transport during floods, and quantified the associated human health risks.
The takeaway: predicting flood risk isn't just about where the water goes; it's about what it's carrying and who it puts in harm's way. Earth observation and machine learning can help close that gap when it matters most, during the emergency, not weeks after…”
#publichealth #risk #hazard #watersecurity #Floodrisk #Humanhealthrisk #Urbanflooding #Hydrodynamicmodelling #waterquality #model #modeling #SupportVectorRegression #flood #flooding #urban #city #sewage #pathogens #contaminant #disease #streets #community #quantification #remotesensing #GIS #spatial #mapping #earthobservation #spatialanalysis #water #hydrology #climatechange #extremeweather #spatiotemporal #AI #machineleraning #fateandtransport #hydrodynamic #microbial #rainfall #drainage #streamflow #topography #hydrogeomorphology #Delhi #India #floodplain

I took down all my spooky molecular model decorations and decided to be a bit seasonal with something else.

I present...tryptophan.

Just in time for Thanksgiving season.

:Hehe:

#Photography #Chemistry #MolecularModel #OrganicChemistry #Contaminant #Toy #ChemistryLove #Organic #MolecularModelKit #Chemist #Toys #OrganicChemistryMolecularKit #MolecularKit #OChem #Thanksgiving

More Spooky Season décor!

Time to get even spookier. It is tetrachloroethylene (PCE). OOOOOH!

PCE is a chlorinated organic contaminant that, oddly, gets more toxic as it breaks down.

On point with the Halloween theme!

#Photography #Chemistry #MolecularModel #OrganicChemistry #Contaminant #Toy #ChemistryLove #Organic #MolecularModelKit #Chemist #Toys #OrganicChemistryMolecularKit #MolecularKit #OChem #Halloween

Spooky Halloween décor for my office.

Not the skull, the pyridine model! The purple ball is meant to be nitrogen.

Pyridine is an organic contaminant often derived from coal tar. Have you smelled that chemical before? Oof, smells like rotten fish.

#Photography #Chemistry #MolecularModel #OrganicChemistry #Contaminant #Toy #ChemistryLove #Organic #MolecularModelKit #Chemist #Toys #OrganicChemistryMolecularKit #MolecularKit #OChem #Halloween

An Enhanced Hydrologic Stream Network Based On The NHDPlus Medium Resolution [MR] Dataset
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https://doi.org/10.3133/sir20195127 <-- shared paper
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#GIS #spatial #mapping #hydrology #USA #water #hydrospatial #NHD #NHDPlus #NHDPlusMR #infrastructure #data #network #appliedscience #model #survey #representation #stream #river #hydrologic #SPARROW #contaminant #pollution #diversions #waterquality #NWQA #routing #network #flowline #tracenetwork #modeling #quality #transport #USGS
@USGS @NWQA

FDA finds new toxic hand-sanitizer ingredient, expands warning to 157 products - Enlarge / Check to make sure your sanitizer is safe. (credit: Getty | Omar Torres)
The US Food an... - https://arstechnica.com/?p=1699174 #consumeralert #handsanitizer #contaminant #1-propanol #methanol #science #alcohol #warning #recall #fda