+ Site Statistics
References:
54,258,434
Abstracts:
29,560,870
PMIDs:
28,072,757
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Decabrominated Diphenyl Ethers (BDE-209) in Chinese and Global Air: Levels, Gas/Particle Partitioning, and Long-Range Transport: Is Long-Range Transport of BDE-209 Really Governed by the Movement of Particles?



Decabrominated Diphenyl Ethers (BDE-209) in Chinese and Global Air: Levels, Gas/Particle Partitioning, and Long-Range Transport: Is Long-Range Transport of BDE-209 Really Governed by the Movement of Particles?



Environmental Science and Technology 51(2): 1035-1042



In this paper, we report air concentrations of BDE-209 in both gas- and particle-phases across China. The annual mean concentrations of BDE-209 were from below detection limit (BDL) to 77.0 pg·m-3 in the gas-phase and 1.06-728 pg·m-3 in the particle-phase. Among the nine PBDEs measured, BDE-209 is the dominant congener in Chinese atmosphere in both gas and particle phases. We predicted the partitioning behavior of BDE-209 in air using our newly developed steady state equation, and the results matched the monitoring data worldwide very well. It was found that the logarithm of the partition quotient of BDE-209 is a constant, and equal to -1.53 under the global ambient temperature range (from -50 to +50 °C). The gaseous fractions of BDE-209 in air depends on the concentration of total suspended particle (TSP). The most important conclusion derived from this study is that, BDE-209, like other semivolatile organic compounds (SVOCs), cannot be sorbed entirely to atmospheric particles; and there is a significant amount of gaseous BDE-209 in global atmosphere, which is subject to long-range atmospheric transport (LRAT). Therefore, it is not surprising that BDE-209 can enter the Arctic through LRAT mainly by air transport rather than by particle movement. This is a significant advancement in understanding the global transport process and the pathways entering the Arctic for chemicals with low volatility and high octanol-air partition coefficients, such as BDE-209.

(PDF emailed within 0-6 h: $19.90)

Accession: 059577759

Download citation: RISBibTeXText

PMID: 27977141

DOI: 10.1021/acs.est.6b05395


Related references

Assessing the long-range transport potential of polybrominated diphenyl ethers: a comparison of four multimedia models. Environmental Toxicology and Chemistry 22(6): 1252-1261, 2003

Temporal trends of polybrominated diphenyl ethers in SE Baffin beluga: increasing evidence of long range atmospheric transport. Organohalogen Compounds, 47: 81-84, 2000

Dependence of persistence and long-range transport potential on gas-particle partitioning in multimedia models. Environmental Science and Technology 42(10): 3690-3696, 2008

Gas-particle partitioning, atmospheric deposition and long range transport of persistent organic pollutants over the oceans. Geochimica et Cosmochimica Acta 71(15S): A195, 2007

The organization for economic cooperation and development study of long range transport of air pollutants long range transport modeling. Atmospheric Environment 12(1-3): 479-487, 1978

Partitioning, persistence and long-range transport of chemicals in the environment. Issues in Environmental Science and Technology 22: 132-153, 2006

Levels, compositions, and gas-particle partitioning of polybrominated diphenyl ethers and dechlorane plus in air in a Chinese northeastern city. Atmospheric Environment 55: 73-79, 2012

Long-range transport of radiocaesium derived from global fallout and the Fukushima accident in the Pacific Ocean since 1953 through 2017-Part I: Source term and surface transport. Journal of Radioanalytical and Nuclear Chemistry 318(3): 1519-1542, 2018

Long-range transport of PCDDs and PCDFs on airborne particles. Chemosphere 18(1-6): 1283-1290, 1989

Long-range transport of giant mineral aerosol particles. Nature 336(6199): 568-571, 1988

Atmospheric Aging of Asian Dust Particles During Long Range Transport. Aerosol Science & Technology 46(8): 913-924, 2012

The mysterious long-range transport of giant mineral dust particles. Science Advances 4(12): Eaau2768-Eaau2768, 2018

Beyond long-range transport: a model of a global gas chromatographic system. Long range transport of pesticides David A Kurtz editor: 426, 1990

Continental and global scale assessment of long range transport. AAAS Annual Meeting & Science Innovation Exposition 167: A14, February 15-20, 2001

Multimedia partitioning, overall persistence, and long-range transport potential in the context of POPs and PBT chemical assessments. Integrated Environmental Assessment and Management 5(4): 557-576, 2009