Profiles and inventories of organic pollutants in sediments from the central Beibu Gulf and its coastal mangroves
David Kaiser
Detlef E. Schulz-Bull
Joanna J. Waniek
Abstract
Sediment cores from the central Beibu Gulf and its northern coastal mangroves were analyzed for polycyclic aromatic hydrocarbons (PAH), the organo-chlorine pesticides dichlorodiphenyltrichloroethane (DDT) and hexachlorobenzene (HCB), and polychlorinated biphenyls (PCB), to reconstruct the organic pollution history of developing south-west China. Reflecting regional development, in the gulf ∑PAH (38–74 ng g−1) decreased towards the surface after peak concentrations near 10 cm, while ∑DDT (ND – 0.5 ng g−1) increased due to fresh inputs, and HCB (ND – 0.04 ng g−1) occurred only in surface sediments. Profiles in mangrove sediments showed a continuing local scale increase in ∑PAH (29–438 ng g−1) as well as ∑DDT (0.2–41.0 ng g−1) and HCB (0.01–1.01 ng g−1) pollution, despite some variability. No trend was evident for ∑PCB (ND – 0.22 ng g−1), which was not detected in the central gulf. Calculated loads estimate that 2816 ng cm−2 PAHs and 7 ng cm−2 DDTs are stored in depositional areas of the Beibu Gulf. Mangrove sediments, threatened by land-use-change, contain 1400–4600 ng cm−2 PAHs and 34–39 ng cm−2 DDTs.
Kaiser D., Schulz-Bull D.E. and Waniek J.J. (2016) Profiles and inventories of organic pollutants in sediments from the central Beibu Gulf and its coastal mangroves. 153: 39-47. 10.1016/j.chemosphere.2016.03.041
@article{Kaiser2016,
Title = {Profiles and inventories of organic pollutants in sediments from the central Beibu Gulf and its coastal mangroves},
Author = {Kaiser, David and Schulz-Bull, Detlef E. and Waniek, Joanna J.},
Editor = {},
Year = {2016},
Pages = {39-47},
Volume = {153},
Doi = {10.1016/j.chemosphere.2016.03.041},
Abstract = {Sediment cores from the central Beibu Gulf and its northern coastal mangroves were analyzed for polycyclic aromatic hydrocarbons (PAH), the organo-chlorine pesticides dichlorodiphenyltrichloroethane (DDT) and hexachlorobenzene (HCB), and polychlorinated biphenyls (PCB), to reconstruct the organic pollution history of developing south-west China. Reflecting regional development, in the gulf ∑PAH (38–74 ng g−1) decreased towards the surface after peak concentrations near 10 cm, while ∑DDT (ND – 0.5 ng g−1) increased due to fresh inputs, and HCB (ND – 0.04 ng g−1) occurred only in surface sediments. Profiles in mangrove sediments showed a continuing local scale increase in ∑PAH (29–438 ng g−1) as well as ∑DDT (0.2–41.0 ng g−1) and HCB (0.01–1.01 ng g−1) pollution, despite some variability. No trend was evident for ∑PCB (ND – 0.22 ng g−1), which was not detected in the central gulf. Calculated loads estimate that 2816 ng cm−2 PAHs and 7 ng cm−2 DDTs are stored in depositional areas of the Beibu Gulf. Mangrove sediments, threatened by land-use-change, contain 1400–4600 ng cm−2 PAHs and 34–39 ng cm−2 DDTs.},
}
TY - JOUR
AU - Kaiser, David
AU - Schulz-Bull, Detlef E.
AU - Waniek, Joanna J.
TI - Profiles and inventories of organic pollutants in sediments from the central Beibu Gulf and its coastal mangroves
PY - 2016
SP - 39-47
VL - 153
DO - 10.1016/j.chemosphere.2016.03.041
AB - Sediment cores from the central Beibu Gulf and its northern coastal mangroves were analyzed for polycyclic aromatic hydrocarbons (PAH), the organo-chlorine pesticides dichlorodiphenyltrichloroethane (DDT) and hexachlorobenzene (HCB), and polychlorinated biphenyls (PCB), to reconstruct the organic pollution history of developing south-west China. Reflecting regional development, in the gulf ∑PAH (38–74 ng g−1) decreased towards the surface after peak concentrations near 10 cm, while ∑DDT (ND – 0.5 ng g−1) increased due to fresh inputs, and HCB (ND – 0.04 ng g−1) occurred only in surface sediments. Profiles in mangrove sediments showed a continuing local scale increase in ∑PAH (29–438 ng g−1) as well as ∑DDT (0.2–41.0 ng g−1) and HCB (0.01–1.01 ng g−1) pollution, despite some variability. No trend was evident for ∑PCB (ND – 0.22 ng g−1), which was not detected in the central gulf. Calculated loads estimate that 2816 ng cm−2 PAHs and 7 ng cm−2 DDTs are stored in depositional areas of the Beibu Gulf. Mangrove sediments, threatened by land-use-change, contain 1400–4600 ng cm−2 PAHs and 34–39 ng cm−2 DDTs.
ER -
