TY - JOUR
T1 - Atmospheric hexachlorobenzene determined during the third china arctic research expedition
T2 - Sources and environmental fate
AU - Wu, Xiaoguo
AU - Lam, James C.W.
AU - Xia, Chonghuan
AU - Kang, Hui
AU - Xie, Zhouqing
AU - Lam, Paul K.S.
N1 - Funding Information:
This study was supported by grants from the National Natural Science Foundation of China (Project Nos. 41025020, 41176170, 41203075), the Program of China Polar Environment Investigation and Assessment (Project No. CHINARE2011–2015) and the Fundamental Research Funds for the Central Universities. The work described in this paper was also funded by the Area of Excellence Scheme under the University Grants Committee of the Hong Kong Special Administrative Region, China (Project No. AoE/P–04/2004), and a Hong Kong Research Grants Council (CityU 160610). Field work was supported by China Arctic and Antarctic Administration and the third China Arctic Research Expedition.
PY - 2014/7
Y1 - 2014/7
N2 - In July to September 2008, air samples were collected aboard a research expedition icebreaker, Xuelong (Snow Dragon), under the support of the 2008 Chinese Arctic Research Expedition Program. All the air samples were analyzed for determination of the concentrations of Hexachlorobenzene (HCB). The levels of HCB ranged from 24 to180 pg m-3, with an average concentration of 88 pg m-3. Generally, HCB were more uniform than other organchlorine pollutants in the North Pacific Ocean and the Arctic Ocean. Geographically, the average concentrations of HCB from high to low were in the following order: the Central Arctic Ocean (110±57 pg m-3), the Chukchi and Beaufort Seas (93±29 pg m-3), the East Asia (75±49 pg m-3) and the North Pacific Ocean (69±38 pg m-3). In the East Asia Sea and the North Pacific Ocean, both primary and secondary emissions of HCB from the nearby continents and/or oceans might contribute to the atmospheric HCB. In the Arctic, intense sea-ice melting in the summer of 2008 might result in the remobilization of HCB and enhance its atmospheric levels in this region.
AB - In July to September 2008, air samples were collected aboard a research expedition icebreaker, Xuelong (Snow Dragon), under the support of the 2008 Chinese Arctic Research Expedition Program. All the air samples were analyzed for determination of the concentrations of Hexachlorobenzene (HCB). The levels of HCB ranged from 24 to180 pg m-3, with an average concentration of 88 pg m-3. Generally, HCB were more uniform than other organchlorine pollutants in the North Pacific Ocean and the Arctic Ocean. Geographically, the average concentrations of HCB from high to low were in the following order: the Central Arctic Ocean (110±57 pg m-3), the Chukchi and Beaufort Seas (93±29 pg m-3), the East Asia (75±49 pg m-3) and the North Pacific Ocean (69±38 pg m-3). In the East Asia Sea and the North Pacific Ocean, both primary and secondary emissions of HCB from the nearby continents and/or oceans might contribute to the atmospheric HCB. In the Arctic, intense sea-ice melting in the summer of 2008 might result in the remobilization of HCB and enhance its atmospheric levels in this region.
KW - Arctic ocean
KW - Atmospheric concentration
KW - Pops
KW - Sea-ice melting
KW - Spatial variations of HCB
UR - https://www.scopus.com/pages/publications/84903271030
U2 - 10.5094/APR.2014.056
DO - 10.5094/APR.2014.056
M3 - Article
AN - SCOPUS:84903271030
SN - 1309-1042
VL - 5
SP - 477
EP - 483
JO - Atmospheric Pollution Research
JF - Atmospheric Pollution Research
IS - 3
ER -