Results 71 to 80 of about 169,266 (309)

Coarse particulate matter air quality in East Asia: implications for fine particulate nitrate

open access: yesAtmospheric Chemistry and Physics, 2023
Abstract. Air quality network data in China and South Korea show very high year-round mass concentrations of coarse particulate matter (PM), as inferred by difference between PM10 and PM2.5. Coarse PM concentrations in 2015 averaged 52 μg m-3 in the North China Plain (NCP) and 23 μg m-3 in the Seoul Metropolitan Area (SMA), contributing nearly half of ...
Shixian Zhai   +21 more
openaire   +7 more sources

Aptamer‐Based Delivery Systems for VEGF and NGF Modulation in Ocular Therapies

open access: yesAdvanced Healthcare Materials, EarlyView.
Aptamer‐based delivery systems targeting NGF and VEGF hold significant potential for precise and sustained treatment of complex diseases affecting both the anterior and posterior segments of the eye. This review critically summarizes current strategies for NGF and VEGF delivery as well as VEGF sequestration, providing a clinical perspective on how ...
Nadine Best   +5 more
wiley   +1 more source

Associations of PM and its major chemical components with cognitive function: A nationwide prospective cohort study among middle-aged and older adults in China

open access: yesJournal of International Medical Research
Objective This study aimed to investigate the associations between fine particulate matter and its major chemical components and cognitive function among middle-aged and older adults in China.
Shaomin Diao, Xiaoming Shen
doaj   +1 more source

Short‐Term Exposure to Fine Particulate Matter Air Pollution Is Preferentially Associated With the Risk of ST‐Segment Elevation Acute Coronary Events

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2015
Background Air pollution is associated with greater cardiovascular event risk, but the types of events and specific persons at risk remain unknown. This analysis evaluates effects of short‐term exposure to fine particulate matter air pollution with risk ...
C. Arden Pope III   +7 more
doaj   +1 more source

Outdoor air pollution and lung cancer: what now?

open access: yesEpidemiology, Biostatistics and Public Health, 2013
In the last decade a substantial number of epidemiological studies suggested that outdoor air pollution and in particular respirable particulate matter (PM10) and fine particulate matter (PM2.5) are associated with an increased risk of lung cancer.The ...
Enrico Pira, Pier Giorgio Piolatto
doaj   +1 more source

School children’s exposure to indoor fine particulate matter

open access: yesEnvironmental Research Letters, 2020
Assessing the exposure of children to indoor fine particulate matter (PM _2.5 ) is important because children spend about one third of their day inside early learning microenvironments.
Nathan Cooper   +3 more
doaj   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Black carbon emissions from traffic contribute substantially to air pollution in Nairobi, Kenya

open access: yesCommunications Earth & Environment, 2022
Fine particulate aerosols and black carbon emissions from fossil fuel combustion, attributed to traffic, are a major contributor to poor air quality in Nairobi, Kenya, according to a year-long time series of black carbon concentration and radiocarbon ...
Leonard Kirago   +3 more
doaj   +1 more source

Fine Particulate Matter and Ozone Air Quality in Western Pennsylvania in the 2000s [PDF]

open access: yes, 2011
Presents data on the area's particulate matter, ozone, and emissions levels and air pollution sources. Examines air quality compared with the rest of the nation, links between premature death and harmful levels of air pollution, and monitoring ...
John Graham
core  

Riverine transfer of heavy metals from Patagonia to the southwestern Atlantic Ocean [PDF]

open access: yes, 2002
The occurrence and geochemical behaviour of Fe, Mn, Pb, Cu, Ni, Cr, Zn and Co are studied in riverine detrital materials transported by Patagonian rivers.
Depetris, Pedro J.   +4 more
core   +1 more source

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