Black carbon (BC) particles are a health-relevant component of combustion-derived air pollution, but internal exposure remains difficult to assess in biological samples. Existing biomonitoring approaches detect or count BC particles but provide limited information on particle mass or source-resolved chemical fingerprints. We reconstructed benzene polycarboxylic acid (BPCA) molecular-marker analysis into a small-volume workflow combining ambient nitric-acid digestion, nanoparticle enrichment, organic-interference removal, single-step solid-phase extraction, and gas chromatography–mass spectrometry (GC–MS). Orthogonal partial least-squares regression quantified BC mass, and a hierarchical OPLS discriminant model classified its sources. We expanded the detectable BPCA panel to 24 congeners; ten quantitative congeners supported the mass model (R2Y=0.955; Q2=0.954). Benzene hexacarboxylic acid (B6CA)-based quantification showed linear ranges matched both serum (R2=0.996; detection/quantification limits: 0.25/1 ng/μL) and tissue (R2=0.979; 0.2/4 ng/mg). Recoveries were 87.1–111.5%, with intra-day and inter-day precision below 17.5% across serum, blood, and tissue. Hierarchical modelling separated biomass-derived from fossil-derived BC, resolved selected subclasses, and correctly classified 91.0% of controlled mixtures, supporting semi-quantitative source apportionment. Method applications to biological and environmental samples showed broad matrix compatibility and source-dependent molecular fingerprints. The novel analytical workflow could support individual based human exposure and epidemiology study, and BC source-oriented climate change issue.

BPCA resiliency project is cutting down 500 mature trees — 40% of the project area's canopy. Cutting has already begun. In its May 2026 reply, BPCA confirmed trees are being removed because they si...

British Pest Control Association (BPCA) experts have shared what signs of rats and mice you should look out for at Christmas.

Key to the County Stones WATCH: BPCA Presents: Public Art on Video – Irish Hunger Memorial (with Brian Tolle) LISTEN: Additional background of the Irish Hunger Memorial provided by cultural liaison Ad...

YouTube video by Johannes F. Zelenak

British Pest Control Association (BPCA) experts have shared what signs of rats and mice you should look out for at Christmas.

Section 508 of PL 112-144 (FDASIA) requires FDA to obtain recommendations and relevant information from interested parties on the required report to Congress submitted by the HHS Secretary every 5 yea...

YouTube video by Rádio BandNews FM

Het incident met de biergooiers en de boe-roepers in de finale van de Ronde van Vlaanderen jegens koploper Mathieu van der Poel gaat nog een serieus staartje krijgen. De politie is een onderzoek gestart naar de daders en nu heeft ook de Belgische rennersvakbond BPCA, met steun van internationale vak

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