Results 201 to 210 of about 10,644,205 (249)

Source apportionment of PM2.5 in Beijing in 2004

Journal of Hazardous Materials, 2007
Based on measurements of fine particulate matter (PM2.5, i.e., particles with an aerodynamic diameter of 2.5 microm or less) in January and August 2004, serious air pollution persists in Beijing. The chemical analysis included organic and elemental carbon, water-soluble ions, and elemental compositions.
Yu, Song, Xiaoyan, Tang, Shaodong, Xie, Yuanhang, Zhang, Yongjie, Wei, Minsi, Zhang, Limin, Zeng, Sihua, Lu   +7 more
openaire   +2 more sources

Source apportionment of PM2.5 and visibility in Jinan, China

Journal of Environmental Sciences, 2021
Atmospheric extinction is impacted by the chemical composition of particles. To better understand the chemical composition of PM2.5 (particles with diameters of less than 2.5 μm) and its relationship with extinction, one-month sampling campaigns were carried out in four different seasons from 2013 to 2014 in Jinan, China.
Mengtian, Cheng, Guiqian, Tang, Bo, Lv, Xingru, Li, Xinrui, Wu, Yiming, Wang, Yuesi, Wang   +6 more
openaire   +2 more sources

Source apportionment of particle number concentrations: A global review.

Science of the Total Environment, 2022
There are strong indications that exposure to ultrafine particles (UFP) (mobility diameters ≤100 nm) can induce adverse health effects. UFP can be present in the atmosphere through direct emissions such as from motor vehicles or through new particle ...
P. Hopke, Yinchang Feng, Qili Dai
semanticscholar   +1 more source

Chemical characterization and source apportionment of PM1 and PM2.5 in Tianjin, China: Impacts of biomass burning and primary biogenic sources.

Journal of Environmental Science, 2021
The submicron particulate matter (PM1) and fine particulate matter (PM2.5) are very important due to their greater adverse impacts on the natural environment and human health.
J. Z. Khan, Long Sun, Yingze Tian, G. Shi, Yinchang Feng   +4 more
semanticscholar   +1 more source

Source apportionment in oil spill remediation

Journal of Environmental Monitoring, 2012
A pipe rupture during unloading led to a spillage of 350-700 tonnes of Caño Limon, a light sweet crude oil, into San Vicente Bay in 2007. Initial clean-up methods removed the majority of the oil from the sandy beaches although some oil remained on the rocky shores.
Jorge, Muñoz, Stephen M, Mudge, Rodrigo, Loyola-Sepulveda, Gonzalo, Muñoz, Claudio, Bravo-Linares   +4 more
openaire   +2 more sources

Characterization and source apportionment of microplastics in Indian composts

Environmental Monitoring and Assessment, 2023
Microplastics (MP), small plastic particles under 5 mm, are pollutants known to carry heavy metals in ecosystems. Composts are a significant source of soil microplastics. This study examined MSW composts from Kochi and Kozhikode in India for microplastic concentrations and heavy metals' accumulation thereon.
Dilraj, Surendran, George Kuttiparichel, Varghese, Christian, Zafiu   +2 more
openaire   +2 more sources

Source Apportionment: Principles and Methods

2016
Receptor model source apportionment has been facilitated by the availability of particulate matter (PM) speciation networks that measure elements, ions, and carbon fractions, and the availability of effective variance (EV)- and positive matrix factorization (PMF)-chemical mass balance (CMB) solutions to identify and quantify source contributions ...
J. G. Watson, J. C. Chow, L.-W. A. Chen, G. Engling, X. L. Wang   +4 more
openaire   +1 more source

PM2.5 Source Apportionment in China

2016
China has been facing a severe air pollution challenge in recent years. It is known that fine particulate matter is closely linked to haze. It is very important to have a good understanding of the formation mechanisms and sources of haze in China.
Mei Zheng, Caiqing Yan, Xiaoying Li
openaire   +1 more source

Source apportionment of ambient VOCs in Delhi City

Science of The Total Environment, 2005
Source apportionment using chemical mass balance (CMB) model was carried using a data set of 360 four hourly samples collected at 15 locations of five categories namely residential, commercial, industrial, traffic intersections and petrol pumps during August 2001-July 2002 in Delhi.
Anjali, Srivastava, B, Sengupta, S A, Dutta   +2 more
openaire   +2 more sources

Identification and apportionment of sources of lead in human tissue

Environmental Geochemistry and Health, 1993
A brief review of the use of stable lead isotope ratio measurements to identify and apportion sources of lead in human tissue is followed by examples of the use of inductively coupled plasma source mass spectrometry for such studies.Inductively coupled plasma source mass spectrometry (ICP-MS) has only recently been used for measurements of coupled ...
H T, Delves, M J, Campbell
openaire   +2 more sources