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Characterization and seasonal variations of levoglucosan in fine particulate matter in Xi'an, China.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhang, Ting Cao, Jun-Ji Chow, Judith C. Shen, Zhenxing Ho, Kin-Fai Ho, Steven Sai Hang Liu, Sui-Xin Han, Yongming Watson, John Gillard Wang, Gehui Huang, Ru-Jin |
| Copyright Year | 2014 |
| Abstract | PM2.5 (particulate matter with an aerodynamic diameter <2.5 microm) samples (n = 58) collected every sixth day in Xi'an, China, from 5 July 2008 to 27 June 2009 are analyzed for levoglucosan (1,6-anhydro-beta-D-glucopyranose) to evaluate the impacts of biomass combustion on ambient concentrations. Twenty-four-hour levoglucosan concentrations displayed clear summer minima and winter maxima that ranged from 46 to 1889 ng m(-3), with an average of 428 +/- 399 ng m(-3). Besides agricultural burning, biomass/biofuel combustion for household heating with straws and branches appears to be of regional importance during the heating season in northwestern China. Good correlations (0.70 < R < 0.91) were found between levoglucosan relative to water- soluble K+, Cl-, organic carbon (OC), elemental carbon (EC), and glyoxal. The highest levoglucosan/OC ratio of2.3% wasfound in winter, followed by autumn (1.5%). Biomass burning contributed to 5.1-43.8% of OC (with an average of 17.6 +/- 8.4%). |
| File Format | PDF HTM / HTML |
| DOI | 10.1080/10962247.2014.944959 |
| PubMed reference number | 25509553 |
| Journal | Medline |
| Volume Number | 64 |
| Issue Number | 11 |
| Alternate Webpage(s) | http://www.klacp.ac.cn/kycg/scilw/201503/W020150319607462868781.pdf |
| Alternate Webpage(s) | https://doi.org/10.1080/10962247.2014.944959 |
| Journal | Journal of the Air & Waste Management Association |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
