New killer whale research published open access in Environmental Research! ‼️🐳 www.sciencedirect.com/science/arti... Check our our general public video abstract below ⭐ @biovitenskap.bsky.social @borga.bsky.social
First evidence that tire and road wear particles (#TRWP) are major carriers of hydrophobic tire additives, accounting for over 45% of #ChlorinatedParaffins in urban road dust. #microplastics #rubber | Environmental Science & Technology Letters pubs.acs.org/doi/full/10....
Tire and Road Wear Particles as Vectors of Hydrophobic Tire Additives: Quantifying Contributions to Chlorinated Paraffins in Urban Road Environments
A recently developed large-scale separation protocol enabled gram-scale isolation of tire and road wear particles (TRWPs) from road dust and roadside soils, providing sufficient material to evaluate their role as carriers of tire-derived chemical additives. An abundant class of hydrophobic tire additives, chlorinated paraffins (CPs), was detected in all samples, with concentrations ranging from 11 to 36 μg g–1 in road dust, 9.6–15 μg g–1 in roadside soils, and 110–290 μg g–1 in dust- and soil-derived TRWPs collected from multiple road environments in a megacity. CP homologue fingerprints in road dust were strongly correlated with those in corresponding TRWPs, suggesting a potential shared source. An exponential relationship between TRWP abundance and its contribution rates to CPs (R2 = 0.95, p < 0.01) showed that TRWP levels govern CP contributions in road dust. TRWPs contributed more than 45% of total CPs at nearly half of the dust sampling sites and 9.8–24.8% in roadside soils. From a broader environmental perspective, estimated contributions were >44% in TRWP-rich environments, 15–36% in urban road dust, and 5–10% in roadside soils. These results provide the first evidence of CPs in environmentally derived TRWPs and quantitatively demonstrate the dissemination of hydrophobic tire additives via TRWPs across urban road environments.
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Elevated levels of chlorinated paraffins were observed in indoor organic films (IOFs) in Swedish schools, suggesting IOFs could be an important source of exposure for children. doi.org/10.1016/j.en... #ChildHealth #IndoorEnvironment #IndoorAirQuality #HumanExposure
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Only 16 km separates the La Paz-El Alto metropolis (1.8M people) from a Bolivian Andes peak. Yet soils above 5000m show elevated pollution levels and distinct chemical fingerprints pointing to distant sources. Is long-range transport dominating pollution at the summit? pubs.acs.org/doi/10.1021/...
Local sources matter. A wake-up call for PFAS monitoring in the Global South. Hidden burdens in mining and agricultural sites challenge the e-waste narrative. #EnvironmentalPolicy #Sustainability #PFAS #Ghana doi.org/10.1016/j.ha...
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Load. Click. Go. Get your chlorinated paraffin results seamlessly across instruments and matrices - powered by CPxplorer. | Environmental Science & Technology pubs.acs.org/doi/full/10....
Streamlining Quantification and Data Harmonization of Polychlorinated Alkanes Using a Platform-Independent Workflow
Reliable quantification of polychlorinated alkanes (PCAs) remains a major challenge, hindering environmental research across diverse matrices. Each sample can contain over 500 homologue groups, collec...
pubs.acs.org
Chlorinated paraffin (CP) pollution from everyday driving may be severely underestimated. Tire wear particles could release ~20% of CP additives, much higher than the 6% from air emissions assumed in current models | Environmental Science & Technology Letters pubs.acs.org/doi/full/10....
Unveiling Chlorinated Paraffin Emissions via Tire Wear and Airborne Release from Various Types of Tires
Ubiquitous vehicle operation leads to the continuous emission of tire additives into the environment via tire wear particles (TWPs) and air emission. Significant knowledge gaps remain regarding the ab...
pubs.acs.org
Even the deep sea isn’t safe from persistent pollutants. Deep-diving whales show 1–10× higher blood levels than humans, including a world-record LCCP concentration of 9100 ng/g fat in blood | Environmental Science & Technology Letters pubs.acs.org/doi/full/10....
Tracing Hydrophobic Pollutants in the Deep Sea: A Case Study on Sowerby’s Beaked Whales
Near-total darkness and water depths below 200 m define the deep sea, Earth’s largest yet most poorly studied ecosystem. Sowerby’s beaked whales (Mesoplodon bidens), elusive deep-sea foragers, offer a...
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