OPEN ACCESS

Articles online

Micro-Morphological Characteristics and Size Distribution of PM2.5 in the Kuitun-Dushanzi Region of Xinjiang, China

Category: Physical and Chemical Characteristics of Aerosols

Volume: 15 | Issue: 6 | Pages: 2258-2269
DOI: 10.4209/aaqr.2015.01.0053
PDF | RIS | BibTeX

Dilinuer Talifu1, Ayikezi Wuji1, Yalkunjan Tursun1, Hong Kang2, Ying Hu3, Yuhong Guo2, Longyi Shao 3

  • 1 College of Chemistry and Chemical Engineering, Xinjiang University, Urumqi, Xinjiang 830046, China
  • 2 Environmental Monitoring Station of Xinjiang Uygur Autonomous Region Urumqi, Xinjiang 830002, China
  • 3 College of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing 100083, China

Highlights

PM2.5 samples were collected from industrial area in Kuitun-Dushanzi, China.
Micro-morphological characteristics and size distributions of PM2.5 were studied.
Mineral particles dominated in all individual particle of PM2.5.


Abstract

The micro-morphological characteristics of PM2.5, collected in the Kuitun-Dushanzi petrochemical area of the Xinjiang Uygur Autonomous Region, China, were studied using a high-resolution field emission scanning electron microscope with energy dispersive X-ray spectroscopy (FESEM-EDX). The individual particle types of PM2.5 were identified, including mineral particles (regular minerals and irregular minerals), spherical particles (coal-fired fly ash and some secondary particles), soot aggregates, and other particles (some particles remained unclassified). Factories, power plants, vehicle emissions, and road dust were major sources of PM2.5 in the Kuitun-Dushanzi petrochemical area. Vehicle exhaust and waste gas from a power plant were defined as primary sources of mineral particles. Wind speed in September which was higher than July during the sampling time leads to the lower concentration of regular mineral particles since high wind speeds would reduce the chance of secondary particle generation. As a high wind speed would also easily diffuse the fine particles, the coarse-grained mineral particles had the highest percentages in September; the chain-like soot aggregates and the compact soot aggregates were the majority of all kinds of particles. The sizes of various particles in July and September primarily ranged from 0.1 to 0.5 µm.

Keywords

Kuitun-Dushanzi region SEM-EDX PM2.5 Micro-morphology


Related Article

An Investigation of the Variability of Particulate Emissions from Woodstoves in New Zealand

Guy Coulson , Richard Bian, Elizabeth Somervell
Volume: 15 | Issue: 6 | Pages: 2346-2356
DOI: 10.4209/aaqr.2015.02.0111
PDF

A Long Term Study on Characterization and Source Apportionment of Particulate Pollution in Klang Valley, Kuala Lumpur

Shamsiah Abdul Rahman , Mohd Suhaimi Hamzah, Md Suhaimi Elias, Nazaratul Ashifa Abdullah Salim, Azian Hashim, Shakirah Shukor, Wee Boon Siong, Abdul Khalik Wood
Volume: 15 | Issue: 6 | Pages: 2291-2304
DOI: 10.4209/aaqr.2015.03.0188
PDF | Supplemental material

Source Specific Cyto- and Genotoxicity of Atmospheric Aerosol Samples

Ágnes Filep , Luka Drinovec, Andrea Palágyi, László Manczinger, Csaba Vágvölgyi, Zoltán Bozóki, Regina Hitzenberger, Gábor Szabó
Volume: 15 | Issue: 6 | Pages: 2325-2331
DOI: 10.4209/aaqr.2015.03.0131
PDF

Ultrafine Particles and PM2.5 at Three Urban Air Monitoring Stations in Northern Taiwan from 2011 to 2013

Guan-Yu Lin, Guo-Rui Lee, Sih-Fan Lin, Yi-Hung Hung, Shih-Wei Li, Guo-Jei Wu, Huajun Ye, Wei Huang, Chuen-Jinn Tsai
Volume: 15 | Issue: 6 | Pages: 2305-2317
DOI: 10.4209/aaqr.2015.04.0271
PDF | Supplemental material
;