Next Article in Journal
The Urban Heat Island Effect and the Role of Vegetation to Address the Negative Impacts of Local Climate Changes in a Small Brazilian City
Previous Article in Journal
Extreme Sea Ice Loss over the Arctic: An Analysis Based on Anomalous Moisture Transport
Open AccessArticle

Temporal Variability of Source-Specific Solvent-Extractable Organic Compounds in Coastal Aerosols over Xiamen, China

by Shuqin Tao 1,2,*, Xijie Yin 3, Liping Jiao 1, Shuhui Zhao 1 and Liqi Chen 1,2,*
1
Key Laboratory of Global Change and Marine-Atmospheric Chemistry of State Oceanic Administration (SOA), Third Institute of Oceanography, State Oceanic Administration (SOA), Xiamen 361005, China
2
College of Ocean and Earth Sciences, Xiamen University, Xiamen 361008, China
3
Laboratory of Marine and Coastal Geology, Third Institute of Oceanography, State Oceanic Administration (SOA), Xiamen 361005, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Robert W. Talbot
Atmosphere 2017, 8(2), 33; https://doi.org/10.3390/atmos8020033
Received: 21 November 2016 / Revised: 21 January 2017 / Accepted: 4 February 2017 / Published: 8 February 2017
This study describes an analysis of ambient aerosols in a southeastern coastal city of China (Xiamen) in order to assess the temporal variability in the concentrations and sources of organic aerosols (OA). Molecular-level measurements based on a series of solvent extractable lipid compounds reveal inherent heterogeneity in OA, in which the concentration and relative contribution of at least three distinct components (terrestrial plant wax derived, marine/microbial and fossil fuel derived organic matter (OM)) exhibited distinct and systematic temporal variability. Plant wax lipids and associated terrestrial OM are influenced by seasonal variability in plant growth; marine/microbial lipids and associated marine OM are modulated by sea spill and temperature change, whereas fossil fuel derived OM reflects the anthropogenic utilization of fossil fuels originated from petroleum-derived sources and its temporal variation is strongly controlled by meteorological conditions (e.g., the thermal inversion layer), which is analogous to other air organic pollutions. A comparative study among different coastal cities was applied to estimate the supply of different sources of OM to ambient aerosols in different regions, where it was found that biogenic OM in aerosols over Xiamen was much lower than that of other cities; however, petroleum-derived OM exhibited a high level of contribution with a higher concentration of unresolved complex matters (UCM) and higher a ratio between UCM and resolved alkanes (UCM/R). View Full-Text
Keywords: temporal variability; organic aerosols (OA); source-specific lipids; marine and microbial OM; plant wax OM; fossil fuel-derived OM; coastal cities; Xiamen temporal variability; organic aerosols (OA); source-specific lipids; marine and microbial OM; plant wax OM; fossil fuel-derived OM; coastal cities; Xiamen
Show Figures

Figure 1

MDPI and ACS Style

Tao, S.; Yin, X.; Jiao, L.; Zhao, S.; Chen, L. Temporal Variability of Source-Specific Solvent-Extractable Organic Compounds in Coastal Aerosols over Xiamen, China. Atmosphere 2017, 8, 33.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop