Organic pollutants in the central and coastal Beibu Gulf, South China Sea
David Kaiser
Ines Hand
Daniela Unger
Detlef E. Schulz-Bull
Joanna J. Waniek
Abstract
Surface sediments from the central and coastal Beibu Gulf, southern China, were analyzed for persistent organic pollutants. The absence of polychlorinated biphenyls (PCB; generally below detection limit), low concentrations of polycyclic aromatic hydrocarbons (PAH; 24–647 ng g− 1), and locally high contamination with organo-chloro pesticides (DDT; 0.03–92 ng g− 1) reflect the early stages of development in southwest China, with human activities dominated by agriculture and low impact of industry. Concentrations of PCB and PAH indicate no ecological risk, while DDT accumulation poses a probable toxic risk in coastal but not in shelf sediments. Diagnostic ratios suggest PAH originating mainly from combustion of biomass and diesel fuels, and recent DDT use in agriculture and antifouling paint. Distribution patterns along the coastal-shelf-gradient indicate mainly airborne transport of PAH and waterborne transport of DDT. In the central Gulf, also water column samples reveal low concentrations of PAH (1.7–7.8 ng L− 1) and DDT (0.006–0.053 ng L− 1).
Kaiser D., Hand I., Unger D., Schulz-Bull D.E. and Waniek J.J. (2015) Organic pollutants in the central and coastal Beibu Gulf, South China Sea. Marine Pollution Bulletin 101(2): 972-985. 10.1016/j.marpolbul.2015.10.023
@article{Kaiser2015,
Title = {Organic pollutants in the central and coastal Beibu Gulf, South China Sea},
Author = {Kaiser, David and Hand, Ines and Unger, Daniela and Schulz-Bull, Detlef E. and Waniek, Joanna J.},
Editor = {},
Journal = {Marine Pollution Bulletin},
Year = {2015},
Pages = {972-985},
Volume = {101},
Doi = {10.1016/j.marpolbul.2015.10.023},
Abstract = {Surface sediments from the central and coastal Beibu Gulf, southern China, were analyzed for persistent organic pollutants. The absence of polychlorinated biphenyls (PCB; generally below detection limit), low concentrations of polycyclic aromatic hydrocarbons (PAH; 24–647 ng g− 1), and locally high contamination with organo-chloro pesticides (DDT; 0.03–92 ng g− 1) reflect the early stages of development in southwest China, with human activities dominated by agriculture and low impact of industry. Concentrations of PCB and PAH indicate no ecological risk, while DDT accumulation poses a probable toxic risk in coastal but not in shelf sediments. Diagnostic ratios suggest PAH originating mainly from combustion of biomass and diesel fuels, and recent DDT use in agriculture and antifouling paint. Distribution patterns along the coastal-shelf-gradient indicate mainly airborne transport of PAH and waterborne transport of DDT. In the central Gulf, also water column samples reveal low concentrations of PAH (1.7–7.8 ng L− 1) and DDT (0.006–0.053 ng L− 1).},
}
TY - JOUR
AU - Kaiser, David
AU - Hand, Ines
AU - Unger, Daniela
AU - Schulz-Bull, Detlef E.
AU - Waniek, Joanna J.
TI - Organic pollutants in the central and coastal Beibu Gulf, South China Sea
T2 - Marine Pollution Bulletin
PY - 2015
SP - 972-985
VL - 101
DO - 10.1016/j.marpolbul.2015.10.023
AB - Surface sediments from the central and coastal Beibu Gulf, southern China, were analyzed for persistent organic pollutants. The absence of polychlorinated biphenyls (PCB; generally below detection limit), low concentrations of polycyclic aromatic hydrocarbons (PAH; 24–647 ng g− 1), and locally high contamination with organo-chloro pesticides (DDT; 0.03–92 ng g− 1) reflect the early stages of development in southwest China, with human activities dominated by agriculture and low impact of industry. Concentrations of PCB and PAH indicate no ecological risk, while DDT accumulation poses a probable toxic risk in coastal but not in shelf sediments. Diagnostic ratios suggest PAH originating mainly from combustion of biomass and diesel fuels, and recent DDT use in agriculture and antifouling paint. Distribution patterns along the coastal-shelf-gradient indicate mainly airborne transport of PAH and waterborne transport of DDT. In the central Gulf, also water column samples reveal low concentrations of PAH (1.7–7.8 ng L− 1) and DDT (0.006–0.053 ng L− 1).
ER -
