The pollution status and the toxicity of surface sediments in İzmit Bay (Marmara Sea), Turkey

Composition, sources, and potential toxicological significance of PAHs in the surface sediments of the Meiliang Bay, Taihu Lake, China

“…Concentration levels of total 16 PAHs in surface sediments from different locations in Meiliang Bay, Taihu Lake, were close to those found at the Bohai Sea and Yellow Sea in China (877 -5730 ng/g) ( Table 1) (Ma et al, 2001) and higher than those found in sediments of some rivers in China, such as Yalujiang River (68 -1500 ng/g) (Wu et al, 2003) and Minjiang River Estuary (112 -877 ng/g) (Zhang et al, 2004a,b). However, the levels were lower than those reported in urbanized and industrialized areas, such as Pearl River (1434 -10,811 ng/g) (Mai et al, 2002), the Macao Harbor (294 -12,714 ng/g) (Mai et al, 2002), the Kiel Harbor (3 -30,000 ng/g) (Baumard et al, 1999), and the Ý zmit Bay, Turkey (250 -25,000 ng/g) (Tolun et al, 2001). …”

Sedimentary record of hydrophobic organic compounds in relation to regional economic development: A study of Taihu Lake, East China

“…However, these levels were lower than those reported in highly urbanized and industrialized regions, such as the Pearl River (1434-10,811 ng/g), the Macau Inner Harbor (294-12, 714 ng/g) , the Michigan Inland Lakes (50-16,900 ng/g) (Kannan et al, 2005), the Kiel Harbor (3-30, 000 ng/g) (Baumard et al, 1999), and the Ý zmit Bay, Turkey (250-25, 000 ng/g) (Tolun et al, 2001). For HCHs and DDTs, the residue levels found in this study were well within the worldwide ranges.…”

Primary Producers and Anthropic Signs Related to the Flood Plain Soils of the Tablas de Daimiel Wetland

“…Six sampling sites (numbers 8,15,20,28,29,34) were selected in a transect oriented parallel to the shoreline, from downstream, in order to identify possible areas of the wetland affected by excessive nutrients or chemical elements pollutants; other two samples have been included as possible polluting sources (numbers 1 and 41), (Figure 1). Soil samples were collected using a Van Veen drag at each site at depths in the range 0 to 30 cm and the exact location was recorded by GPS (Table 1).…”