Environmental Pollution 170

Polychlorinated naphthalenes (PCNs) in the surface soils of the Pearl River Delta, South China: Distribution, sources, and air-soil exchange

Pages 1-7
Yan Wang, Zhineng Cheng, Jun Li, Chunling Luo, Yue Xu, Qilu Li, Xiang Liu, Gan Zhang

• A gradient of PCN levels between highly and less developed areas was observed.
• CN 51 may be a new specific source indicator compared to other congeners.
• Soil acts as a secondary source in summer and a recipient in winter for PCNs in PRD.
• Low-chlorinated PCNs released from the PRD may transport to North China

PFOS and PFOA in influents, effluents, and biosolids of Chinese wastewater treatment plants and effluent-receiving marine environments

Pages 26-31
Hong Chen, Can Zhang, Jianbo Han, Yixuan Yu, Peng Zhang

• Levels of PFOS and PFOA in influents, effluents and sludge from Chinese WWTPs were examined.
• Municipal sewage was the main source for PFOS in Chinese WWTPs, while industrial sewage for PFOA.
• PFOS and PFOA concentrations in effluents were much higher than those in receiving seawater.

High levels of DDT in breast milk: Intake, risk, lactation duration, and involvement of gender

Pages 63-70
Hindrik Bouwman, Henrik Kylin, Barbara Sereda, Riana Bornman

• The highest ΣDDT in breast milk ever found in South Africa is reported.
• Maximum Residue Limit is exceeded, up to 99 times.
• Provisional Tolerable Daily Intake is exceeded, up to 310 times.
• High ΣDDT did not affect duration of lactation.
• Infant gender may affect levels of ΣDDT in breast milk.

Distribution and long-range transport of polyfluoroalkyl substances in the Arctic, Atlantic Ocean and Antarctic coast

Pages 71-77
Zhen Zhao, Zhiyong Xie, Axel Möller, Renate Sturm, Jianhui Tang, Gan Zhang, Ralf Ebinghaus

• PFOA is released from the Arctic snow and ice and might be transport southwards to the Atlantic.
• Decline temporal trends of PFASs are present in the Northern Hemisphere in the Atlantic.
• PFOS has elevate concentration in comparison to PFOA in the Southern Ocean.

Persistent organic pollutants in the Tibetan surface soil: Spatial distribution, air–soil exchange and implications for global cycling

Pages 145-151
Xiao-ping Wang, Jiu-jiang Sheng, Ping Gong, Yong-gang Xue, Tan-dong Yao, Kevin C. Jones

• Soil organic carbon content influence the spatial distribution of persistent organic pollutants.
• The Tibetan soil acts as “secondary sources” for HCB, low molecular weight PCBs and HCHs.
• The Tibetan soil will continue to be “sinks” for DDE and DDT.

Relationships between aging of PAHs and soil properties

Pages 177-182
Lei Luo, Shu Lin, Honglin Huang, Shuzhen Zhang

• PAH aging exhibits a biphasic behavior in the soils.
• The rapid diffusion depends on meso- and micropore distribution and TOC content.
• The slow diffusion is controlled by hard organic carbon and pore distribution.
• Hard organic carbon can act as a better predictor of PAH sequestration than TOC.

The fractional patterns of polybrominated diphenyl ethers in the soil of the central Tibetan Plateau, China: The influence of soil components

Pages 183-189
Guo-Li Yuan, Wei Xie, Xiao-Chao Che, Peng Han, Chen Liu, Gen-Hou Wang

• All data about soil and PBDEs were based on field data rather than experiments.
• The intermediate fraction of PBDEs increased with increases in the clay content.
• The clays were more strongly correlated with PBDEs fractional patterns than SOC.

Changing redox potential by controlling soil moisture and addition of inorganic oxidants to dissipate pentachlorophenol in different soils

Pages 260-267
Jiajiang Lin, Yan He, Jianming Xu

• The extent of the aerobic/anaerobic interface depends upon the soil properties.
• The dissipation of PCP was accelerated in some soils due to the soil-water interface.
• The addition of oxidants inhibited the decrease in soil redox potential.
• Most external oxidants added under flooded condition inhibited PCP dechlorination.

Improved reproductive success in otters (Lutra lutra), grey seals (Halichoerus grypus) and sea eagles (Haliaeetus albicilla) from Sweden in relation to concentrations of organochlorine contaminants

Pages 268-275
Anna M. Roos, Britt-Marie V.M. Bäcklin, Björn O. Helander, Frank F. Rigét, Ulla C. Eriksson

• We compared trends of reproductive success in three aquatic top predators in Sweden.
• The study period covers four decades.
• Similar, increasing trends are seen from the end of the 1980s for otters, grey seals and sea eagles.
• Concentrations of total-PCB and DDTs have decreased in these species at similar rates.
• PCBs and DDTs have severely affected reproductive success in these species.

9.8.2012

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