Results 21 to 30 of about 12,346,044 (276)

Tuning the selectivity of nitrobenzene hydrogenation over Pd/CeO2 catalysts for azoxybenzene synthesis under solvent-free conditions

open access: yesCatalysis Communications, 2023
Precise control of selectivity in nitrobenzene hydrogenation is a long-standing challenge, especially under solvent-free conditions. The PdOx is the key species for enhancing H2 dissociation and nitrobenzene conversion.
Jiaben Wang   +11 more
doaj   +1 more source

Impact of Sea Breeze Circulation on the Transport of Ship Emissions in Tangshan Port, China

open access: yesAtmosphere, 2019
A sea breeze is a local circulation that occurs in coastal regions from the poles to the equator. The adverse influence of ship emissions on air quality in coastal areas may be aggravated by the onshore flow of sea breeze circulation.
Fang Shang   +6 more
doaj   +1 more source

Ultra-high-resolution mapping of ambient fine particulate matter to estimate human exposure in Beijing

open access: yesCommunications Earth & Environment, 2023
With the decreasing regional-transported levels, the health risk assessment derived from fine particulate matter (PM2.5) has become insufficient to reflect the contribution of local source heterogeneity to the exposure differences.
Yongyue Wang   +10 more
doaj   +1 more source

Potential role of polycyclic aromatic hydrocarbons as mediators of cardiovascular effects from combustion particles

open access: yesEnvironmental Health, 2019
Air pollution is the most important environmental risk factor for disease and premature death, and exposure to combustion particles from vehicles is a major contributor.
Jørn A. Holme   +4 more
doaj   +1 more source

Interstate air pollution study. Phase II project report. [PDF]

open access: yes, 1966
Vols. 2-3, 8 have imprint: Cincinnati, Ohio, U.S. Dept. of Health, Education and Welfare, Public Health Service, Bureau of Disease Prevention and Environmental Control, National Center for Air Pollution Control.Includes bibliographical references.v.

core   +1 more source

Updated atmospheric speciated mercury emissions from iron and steel production in China during 2000–2015 [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Iron and steel production (ISP) is one of the significant atmospheric Hg emission sources in China. Atmospheric mercury (Hg) emissions from ISP during 2000–2015 were estimated by using a technology-based emission factor method.
Q. Wu   +7 more
doaj   +1 more source

Prediction of Emission Reduction Potential from Road Diesel Vehicles in the Beijing–Tianjin–Hebei (BTH) Region, China

open access: yesAtmosphere, 2022
China has started to focus on the reduction in pollutants from diesel vehicles with high emission intensities in recent years. Therefore, it is essential and valuable to conduct a deep and detailed exploration of the reduction potential from diesel ...
Xiurui Guo   +3 more
doaj   +1 more source

Technical Perspective of Carbon Capture, Utilization, and Storage

open access: yesEngineering, 2022
Carbon dioxide (CO2) is the primary greenhouse gas contributing to anthropogenic climate change which is associated with human activities. The majority of CO2 emissions are results of the burning of fossil fuels for energy, as well as industrial ...
Qingyang Lin   +4 more
doaj   +1 more source

Chemical Characteristics and Sources of Submicron Particles in a City with Heavy Pollution in China

open access: yesAtmosphere, 2018
Submicron particle (PM1) pollution has received increased attention in recent years; however, few studies have focused on such pollution in the city of Shijiazhuang (SJZ), which is one of the most polluted cities in the world. In this study, we conducted
Jianlei Lang   +7 more
doaj   +1 more source

Progress of Air Pollution Control in China and Its Challenges and Opportunities in the Ecological Civilization Era

open access: yesEngineering, 2020
China’s past economic growth has substantially relied on fossil fuels, causing serious air pollution issues. Decoupling economic growth and pollution has become the focus in developing ecological civilization in China.
Xi Lu   +9 more
doaj   +1 more source

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