Distribution of polycyclic aromatic hydrocarbons in sediments from Yellow River Estuary and Yangtze River Estuary, China

Hui, Yamei; Zheng, Minghui; Liu, Zhengtao; Gao, Lian

doi:10.1016/s1001-0742(08)62465-1

Cited by 77 publications

(24 citation statements)

References 28 publications

(21 reference statements)

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“…In the last decade, many studies have focused on the contamination of sediment in the Yangtze estuary by organic micropollutants including PAHs (Liu et al, 2000;Xu et al, 2001;Hui et al, 2009), aliphatic hydrocarbons (Bouloubassi et al, 2001), organochlorine pesticides (OCPs) (Liu et al, 2003(Liu et al, , 2008, PCBs (Liu et al, 2003;Shen et al, 2006), and polybrominated diphenyl ethers (Chen et al, 2006;Shen et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Organic micropollutants in the Yangtze River: Seasonal occurrence and annual loads

Müller

Pernet-Coudrier

et al. 2014

Science of The Total Environment

110

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• The Yangtze River drains 40% of China's mainland with 400 million inhabitants • Monthly concentrations and annual loads of organic pollutants were determined • Seasonality of loads of PAHs, most pesticides, and antiinfectives were concise • In spite of low concentrations due to high water discharge, pollutant loads are considerable a b s t r a c t a r t i c l e i n f o Twenty percent of the water run-off from China's land surface drains into the Yangtze River and carries the sewage of approximately 400 million people out to sea. The lower stretch of the Yangtze therefore offers the opportunity to assess the pollutant discharge of a huge population. To establish a comprehensive assessment of micropollutants, river water samples were collected monthly from May 2009 to June 2010 along a crosssection at the lowermost hydrological station of the Yangtze River not influenced by the tide (Datong Station, Anhui province). Following a prescreening of 268 target compounds, we examined the occurrence, seasonal variation, and annual loads of 117 organic micropollutants, including 51 pesticides, 43 pharmaceuticals, 7 household and industrial chemicals, and 16 polycyclic aromatic hydrocarbons (PAHs). During the 14-month study, the maximum concentrations of particulate PAHs (1-5 μg/g), pesticides (11-284 ng/L), pharmaceuticals (5-224 ng/L), and household and industrial chemicals (4-430 ng/L) were generally lower than in other Chinese rivers due to the dilution caused of the Yangtze River's average water discharge of approximately 30,000 m 3 /s. The loads of most pesticides, anti-infectives, and PAHs were higher in the wet season compared to the dry season, which was attributed to the increased agricultural application of chemicals in the summer, an elevated water discharge through the sewer systems and wastewater treatment plants (WWTP) as a result of high hydraulic loads and the related lower treatment efficiency, and seasonally increased deposition from the atmosphere and runoff from the catchment. The estimated annual load of PAHs in the river accounted for some 4% of the total emission of PAHs in the whole Yangtze Basin. Furthermore, by using sucralose as a tracer for domestic wastewater, we estimate a daily disposal of approximately 47 million m 3 of sewage into the river, corresponding to 1.8% of its average hydraulic load. In summary, the annual amounts flushed by the Yangtze River into the East China Sea were 2.9 × 10 6 tons of dissolved and particulate organic carbon (DOC and POC), 369 tons of PAHs, 98 tons of pesticides, 152 tons of pharmaceuticals, and 273 tons of household and industrial chemicals. While the concentrations seem comparably moderate, the pollutant loads are considerable and pose an increasing burden to the health of the marine coastal ecosystem.

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Section: Introductionmentioning

confidence: 99%

Organic micropollutants in the Yangtze River: Seasonal occurrence and annual loads

Müller

Pernet-Coudrier

et al. 2014

Science of The Total Environment

110

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“…Because of its environmental significance, ecological sensitivity and development potential, the unique environmental conditions in YRDNNR have received great attention. However, most studies of contamination in the Yellow River Delta (YRD) have focused on the distributions of contaminant metals, N and P (Song, 2000;Li et al, 2001;Chen et al, 2007;Hui et al, 2009). A few studies on hydrocarbon pollutants have been undertaken (Luo et al, 2005;Hui et al, 2009) but rarely on aliphatic hydrocarbons, which have toxic effects on aquatic organisms and are probably carcinogenic to humans.…”

Section: Introductionmentioning

confidence: 99%

Sources and distribution of aliphatic and polycyclic aromatic hydrocarbons in Yellow River Delta Nature Reserve, China

Wang

Wang²,

et al. 2011

Applied Geochemistry

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“…Most studies on organic compounds address the middle and lower reaches of the Yangtze River downstream of the TGD (e.g., Feng et al 2007;Müller et al 2008;Tang et al 2008;He et al 2011;Yan et al 2013). PAH, polybrominated diphenyl ethers (PBDE), and polychlorinated biphenyls (PCB) were analyzed in sediments from Yangtze River estuary or Wuhan and found to originate mainly from heavy rains and surface runoff (Yang et al 2009;Ou et al 2010;Gao et al 2013), waste (Chen et al 2006) and sewage discharge points (Liu et al 2001;Yang et al 2009;Hui et al 2009;Ou et al 2010), and combustion (Liu et al 2001;Ou et al 2010;Li et al 2012). Generally, the concentrations of organic pollutants were found to increase from the remote west to the industrialized east (Liu et al 2011).…”

mentioning

confidence: 99%

Occurrence and distribution of organic trace substances in waters from the Three Gorges Reservoir, China

Wolf

Bergmann

Wilken

et al. 2013

Environ Sci Pollut Res

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This study deals with the evaluation of water quality of the Three Gorges Reservoir (TGR) in order to assess its suitability as a raw water source for drinking water production. Therefore, water samples from (1) surface water, (2) tap water, and (3) wastewater treatment plant effluents were taken randomly by 2011-2012 in the area of the TGR and were analyzed for seven different organic contaminant groups (207 substances in total), applying nine different analytical methods. In the three sampled water sources, typical contaminant patterns were found, i.e., pesticides and polycyclic aromatic hydrocarbons (PAH) in surface water with concentrations of 0.020-3.5 μg/L and 0.004-0.12 μg/L, disinfection by-products in tap water with concentrations of 0.050-79 μg/L, and pharmaceuticals in wastewater treatment plant effluents with concentrations of 0.020-0.76 μg/L, respectively. The most frequently detected organic compounds in surface water (45 positives out of 57 samples) were the pyridine pesticides clopyralid and picloram. The concentrations might indicate that they are used on a regular basis and in conjunction in the area of the TGR. Three-and four-ring PAH were ubiquitously distributed, while the poorly soluble five-and six-ring members, perfluorinated compounds, polychlorinated biphenyls, and polybrominated diphenyl ethers, were below the detection limit. In general, the detected concentrations in TGR are in the same range or even lower compared to surface waters in western industrialized countries, although contaminant loads can still be high due to a high discharge. With the exception of the two pesticides, clopyralid and picloram, concentrations of the investigated organic pollutants in TGR meet the limits of the Chinese Standards for Drinking Water Quality GB 5749 (Ministry of Health of China and Standardization Administration of China 2006) and the European Union (EU) Council Directive 98/83/EC on the quality of water intended for human consumption (The Council of the European Union 1998), or rather, the EU Directive on environmental quality standards in the field of water policy (The European Parliament and The Council of the European Union 2008). Therefore, the suggested use of surface water from TGR for drinking water purposes is a valid option. Current treatment methods, however, do not seem to be efficient since organic pollutants were detected in significant concentrations in purified tap water.

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Distribution of polycyclic aromatic hydrocarbons in sediments from Yellow River Estuary and Yangtze River Estuary, China

Cited by 77 publications

References 28 publications

Organic micropollutants in the Yangtze River: Seasonal occurrence and annual loads

Organic micropollutants in the Yangtze River: Seasonal occurrence and annual loads

Sources and distribution of aliphatic and polycyclic aromatic hydrocarbons in Yellow River Delta Nature Reserve, China

Occurrence and distribution of organic trace substances in waters from the Three Gorges Reservoir, China

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