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Objectives: While several studies have reported associations of daily exposures to PM2.5 (particles less than 2.5 µm) with mortality, few studies have examined the impact of its constituents such as black carbon (BC), which is also a significant contributor to global climate change.
Methods: We assessed the association between daily concentrations of BC and total, cardiovascular and respiratory mortality in two southern Mediterranean cities. Daily averages of BC were collected for 2 years in Barcelona, Spain and Athens, Greece. We used case-crossover analysis and examined single and cumulative lags up to 3 days.
Results: We observed associations between BC and all mortality measures. For a 3-day moving average, cardiovascular mortality increased by 4.5% (95% CI 0.7 to 8.5) and 2.0% (95% CI 0 to 4.0) for an interquartile change in BC in Athens and Barcelona, respectively. Considerably higher effects for respiratory mortality and for those above age 65 were observed. In addition, BC exhibited much greater toxicity per microgram than generic PM2.5.
Conclusions: Our findings suggest that BC, derived in western industrialised nations primarily from diesel engines and biomass burning, poses a significant burden to public health, particularly in European cities with high-traffic density.
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http://dx.doi.org/10.1136/oemed-2014-102184 | DOI Listing |
Food Chem
September 2025
Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 333, Taiwan, ROC; Department of General Dentistry, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan, ROC. Electronic address:
Diuron (DU), a widely used herbicide, is persistent and toxic, posing serious environmental and health risks. Therefore, the development of advanced sensor materials for the sensitive detection of DU is urgently needed. Here, we present a simple, cost-effective ultrasonic-assisted method to fabricate a high-performance nanocomposite of carbon black (CB) and Ga-liquid metal (GaInSn), which is utilized to modify a carbon electrode (CB/GaInSn/SPCE) for developing an electrochemical sensor for DU detection.
View Article and Find Full Text PDFAnaerobic methanotrophic archaea (ANME) are crucial to planetary carbon cycling. They oxidise methane in anoxic niches by transferring electrons to nitrate, metal oxides, or sulfate-reducing bacteria. No ANMEs have been isolated, hampering the biochemical investigation of anaerobic methane oxidation.
View Article and Find Full Text PDFJ Air Waste Manag Assoc
September 2025
New York State Department of Environmental Conservation, Division of Air Resources, Albany, NY, USA.
New York State has enacted public policies that have enabled a multi-decadal trend in air quality improvement. However, the benefits of cleaner air are not felt equally across the populace, with individuals residing in disadvantaged communities bearing disproportionate air pollution burdens due to proximity of polluting sources, in addition to other environmental stressors. To address this disparity, the New York State Department of Environmental Conservation contracted with Aclima, Inc.
View Article and Find Full Text PDFCommun Med (Lond)
September 2025
Regional Environment Conservation Division, National Institute for Environmental Studies, Tsukuba, Japan.
Background: Particulate matter with an aerodynamic diameter of ≤2.5 µm (PM) is a heterogeneous mixture, and specific substances that affect cardiovascular events remain unknown. We aimed to examine the association of short-term exposure to PM and its components with hospital admissions for acute myocardial infarction (AMI).
View Article and Find Full Text PDFInt J Biometeorol
September 2025
Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, China.
There is a lack of research on the association between fine particulate matter (PM) fractions and respiratory disease mortality. Therefore, this study aims to investigate how short-term exposure to fine particulate matter components affects the mortality risk of patients with respiratory diseases.We collected data on the number of respiratory deaths and fine particulate matter components, including sulfate (SO), nitrate (NO), ammonium (NH), organic matters (OM), and black carbon (BC), in Hefei, Anhui Province, between 2017 and 2020.
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