Results 11 to 20 of about 2,220,079 (298)

Combined hydrogen diesel combustion: An experimental investigation into the effects of hydrogen addition on the exhaust gas emissions, particulate matter size distribution and chemical composition [PDF]

, 2008
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This investigation examines the effects of load, speed, exhaust gas recirculation (EGR) level and hydrogen addition level on the exhaust gas emissions ...
McWilliam, Lyn
core   +7 more sources

The Characteristics of Heavy Ozone Pollution Episodes and Identification of the Primary Driving Factors Using a Generalized Additive Model (GAM) in an Industrial Megacity of Northern China

Atmosphere, 2021
Tropospheric ozone is the only normal pollutant with a continuously increasing annual average concentration worldwide. In this study, data were monitored at the Nankai University Air Quality Research Supersite (NKAQRS) (38.99° N, 117.33° E) between 1 ...
Liuli Diao, Xiaohui Bi, Wenhui Zhang, Baoshuang Liu, Xuehan Wang, Linxuan Li, Qili Dai, Yufen Zhang, Jianhui Wu, Yinchang Feng   +9 more
doaj   +1 more source

Characteristics of Chemical Composition and Particle Size Distribution from Real Coal-fired Circulating Fluidised Bed (CFB) Boiler

Aerosol and Air Quality Research, 2021
The chemical component (element, ion, and carbonaceous aerosols) behaviour in particle size distributions (PSDs) was studied by determining the particulate matter (PM) emitted from the circulating fluidised-bed (CFB) combustion flue gas.
Xin Du, Jianhui Wu, Yingze Tian, Yufen Zhang, Baoshuang Liu, Yinchang Feng   +5 more
doaj   +1 more source

Characterisation of particulate matter and identification of emission sources in Greater Caracas, Venezuela [PDF]

, 2021
Between June-September 2018, particulate matter (PM) samples were taken in the Sartenejas Valley, southeast of Greater Caracas, Venezuela. The aim was to evaluate the morphology and the elemental chemical composition of particulate matter and establish ...
Rincón, Gladys, Morantes, Giobertti, González, Jean Carlos   +2 more
core   +1 more source

Evaluation of regional background particulate matter concentration based on vertical distribution characteristics [PDF]

Atmospheric Chemistry and Physics, 2015
Heavy regional particulate matter (PM) pollution in China has resulted in an important and urgent need for joint control actions among cities. It is advisable to improve the understanding of the regional background concentration of PM for the development
S. Han, Y. Zhang, J. Wu, X. Zhang, Y. Tian, Y. Wang, J. Ding, W. Yan, X. Bi, G. Shi, Z. Cai, Q. Yao, H. Huang, Y. Feng   +13 more
doaj   +1 more source

Source-specific risks of synchronous heavy metals and PAHs in inhalable particles at different pollution levels: Variations and health risks during heavy pollution

Environment International, 2021
Synchronous heavy metals (HMs) and polycyclic aromatic hydrocarbons (PAHs) in inhalable particulate matter (PM10) were measured during 2009–2012 and 2015–2016 in a Chinese megacity (Chengdu) to understand the variations in source-specific health risks ...
Yueming Sun, Yingze Tian, Qianqian Xue, Bin Jia, Yang Wei, Danlin Song, Fengxia Huang, Yinchang Feng   +7 more
doaj   +1 more source

Estimation of the direct and indirect impacts of fireworks on the physicochemical characteristics of atmospheric PM₁₀ and PM_2.5 [PDF]

Atmospheric Chemistry and Physics, 2014
To quantify the total, direct and indirect impacts of fireworks individually, size-resolved PM samples were collected before, during and after a Chinese folk festival (Chinese New Year) in a megacity in China.
Y. Z. Tian, J. Wang, X. Peng, G. L. Shi, Y. C. Feng   +4 more
doaj   +1 more source

Sources and uncertainties of health risks for PM2.5-bound heavy metals based on synchronous online and offline filter-based measurements in a Chinese megacity

Environment International, 2022
Accurate measurements of PM2.5 related heavy metals (HMs) and some components are critical to better understanding the sources and health risks of PM2.5. HMs and other components in PM2.5 were simultaneously measured using online and offline filter-based
Rui Chen, Yehui Zhao, Yingze Tian, Xin Feng, Yinchang Feng   +4 more
doaj   +1 more source

Measurement report: Spatiotemporal and policy-related variations of PM_2.5 composition and sources during 2015–2019 at multiple sites in a Chinese megacity [PDF]

Atmospheric Chemistry and Physics, 2021
A thorough understanding of the relationship between urbanization and PM2.5 (fine particulate matter with aerodynamic diameter less than 2.5 µm) variation is crucial for researchers and policymakers to study health effects and improve air quality.
X. Feng, Y. Tian, Y. Tian, Q. Xue, D. Song, F. Huang, Y. Feng   +6 more
doaj   +1 more source

Source-specific health risk assessment of PM2.5-bound heavy metals based on high time-resolved measurement in a Chinese megacity: insights into seasonal and diurnal variations

Ecotoxicology and Environmental Safety, 2021
The health effects of PM2.5 associated heavy metals have caused wide public concern. To more accurately assess source-specific health risks of PM2.5-bound heavy metals, and to formulate a cost-effective control strategy to health risk reduction, it is ...
Rui Chen, Bin Jia, Yingze Tian, Yinchang Feng   +3 more
doaj   +1 more source