Results 11 to 20 of about 404,537 (301)

Airborne particulate matter [PDF]

Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2020
Airborne particulate matter (PM) is a pollutant of concern not only because of its adverse effects on human health but because of its ability to reduce visibility and soil buildings and materials. It can be regarded as a suite of pollutants since PM covers a very wide range of particle sizes and also has a diverse chemical composition ...
openaire   +2 more sources

Potential Risks of PM_2.5-Bound Polycyclic Aromatic Hydrocarbons and Heavy Metals from Inland and Marine Directions for a Marine Background Site in North China

Toxics, 2022
Ambient PM2.5-bound ions, OC, EC, heavy metals (HMs), 18 polycyclic aromatic hydrocarbons (PAHs), 7 hopanes, and 29 n-alkanes were detected at Tuoji Island (TI), the only marine background atmospheric monitoring station in North China.
Qianqian Xue, Yingze Tian, Xinyi Liu, Xiaojun Wang, Bo Huang, Hongxia Zhu, Yinchang Feng   +6 more
doaj   +1 more source

Effectiveness evaluation of temporary emission control action in 2016 in winter in Shijiazhuang, China [PDF]

Atmospheric Chemistry and Physics, 2018
To evaluate the environmental effectiveness of the control measures for atmospheric pollution in Shijiazhuang, China, a large-scale controlling experiment for emission sources of atmospheric pollutants (i.e.
B. Liu, Y. Cheng, M. Zhou, D. Liang, Q. Dai, L. Wang, W. Jin, L. Zhang, Y. Ren, J. Zhou, C. Dai, J. Xu, J. Wang, Y. Feng, Y. Zhang   +14 more
doaj   +1 more source

Super-learner model realizes the transient prediction of CO2 and NOx of diesel trucks: Model development, evaluation and interpretation

Environment International, 2022
The transient simulation of CO2 and NOX from motor vehicles has essential applications in evaluating vehicular greenhouse gas emissions and pollutant emissions.
Ning Wei, Qijun Zhang, Yanjie Zhang, Jiaxin Jin, Junyu Chang, Zhiwen Yang, Chao Ma, Zhenyu Jia, Chunzhe Ren, Lin Wu, Jianfei Peng, Hongjun Mao   +11 more
doaj   +1 more source

The effect of emission source chemical profiles on simulated PM_2.5 components: sensitivity analysis with the Community Multiscale Air Quality (CMAQ) modeling system version 5.0.2 [PDF]

Geoscientific Model Development, 2023
A chemical transport model (CTM) is an essential tool for air quality prediction and management, widely used in air pollution control and health risk assessment. However, the current models do not perform very well in reproducing the observations of some
Z. Luo, Z. Luo, Y. Han, Y. Han, K. Hua, K. Hua, Y. Zhang, Y. Zhang, J. Wu, J. Wu, X. Bi, X. Bi, X. Bi, Q. Dai, Q. Dai, B. Liu, B. Liu, Y. Chen, X. Long, Y. Feng, Y. Feng, Y. Feng   +21 more
doaj   +1 more source

Developing Low Gasoline Particulate Emission Engines Through Improved Fuel Delivery [PDF]

, 2014
Particulate emissions are of growing concern due to health impacts. Many urban areas around the world currently have particulate matter levels exceeding the World Health Organisation safe limits.
Aleiferis, PG, Behringer, MK, Freeland, P, Oudenijeweme, D   +3 more
core   +1 more source

Dramatic changes in atmospheric pollution source contributions for a coastal megacity in northern China from 2011 to 2020 [PDF]

Atmospheric Chemistry and Physics, 2022
Understanding the effectiveness of long-term air pollution regulatory measures is important for control policy formulation. Efforts have been made using chemical transport modelling and statistical approaches to evaluate the efficacy of the Clean Air ...
B. Liu, B. Liu, Y. Wang, Y. Wang, H. Meng, Q. Dai, Q. Dai, L. Diao, L. Diao, J. Wu, J. Wu, L. Shi, J. Wang, Y. Zhang, Y. Zhang, Y. Feng, Y. Feng   +16 more
doaj   +1 more source

Applying machine learning to construct braking emission model for real-world road driving

Environment International, 2022
Brake emissions from vehicles are increasing as the number of vehicles increases. However, current research on brake emissions, particularly the intensity and characteristics of emissions under real road conditions, is significantly inadequate compared ...
Ning Wei, Zhengyu Men, Chunzhe Ren, Zhenyu Jia, Yanjie Zhang, Jiaxin Jin, Junyu Chang, Zongyan Lv, Dongping Guo, Zhiwen Yang, Jiliang Guo, Lin Wu, Jianfei Peng, Ting Wang, Zhuofei Du, Qijun Zhang, Hongjun Mao   +16 more
doaj   +1 more source

CleAir monitoring system for particulate matter. A case in the Napoleonic Museum in Rome [PDF]

, 2017
Monitoring the air particulate concentration both outdoors and indoors is becoming a more relevant issue in the past few decades. An innovative, fully automatic, monitoring system called CleAir is presented.
Bonacquisti, V., Chianese, A., Di Michele, M., Fazio, E., Frasca, F., Siani, Anna Maria   +5 more
core   +1 more source

Machine learning coupled structure mining method visualizes the impact of multiple drivers on ambient ozone

Communications Earth & Environment, 2023
Ground-level ozone affects Earth’s climate and human health. The formation of ozone is a complex process, depending on both atmospheric chemical processes and meteorological factors.
Han Xu, Haofei Yu, Bo Xu, Zhenyu Wang, Feng Wang, Yuting Wei, Weiqing Liang, Jinxing Liu, Danni Liang, Yinchang Feng, Guoliang Shi   +10 more
doaj   +1 more source