Bio-accumulation of Polycyclic Aromatic Hydrocarbons in the Grey Mangrove (Avicennia marina) along Arabian Gulf, Saudi Coast

Accumulation of trace metals, petroleum hydrocarbons, and polycyclic aromatic hydrocarbons in marine copepods from the Arabian Gulf.

Dietary exposure to polycyclic aromatic hydrocarbons from commercially important seafood of the Arabian Gulf

In order to assess the dietary intake of polycyclic aromatic hydrocarbons (PAHs) by Kuwaiti population, concentrations of PAHs were determined in edible tissues of commercially important seafood (fish and shrimp) samples collected from fish markets in 2005. Naphthalene, phenanthrene, fluoranthrene, pyrene, benz[a]anthracene and chrysene were routinely detected in all samples analyzed. The conce...

Polycyclic Aromatic Hydrocarbons in Offshore Surface Sediments of the Northern Persian Gulf, Bushehr Province

Polycyclic aromatic hydrocarbons (PAHs) are classified as an important category of semi-volatile and persistent organic pollutants. They cause environmental problems due to their toxicity and accumulation in sediments. In this research, offshore sediments of 19 stations in 8 transects of the Persian Gulf in Bushehr province were studied to assess the sources of PAHs. The extraction and clean up...

Oxygen microgradients in the rhizosphere of the mangrove Avicennia marina

Oxygen concentration was measured in aerial roots (pneumatophores), horizontal cable roots and surrounding sediment of the tree Avicennia marina (Forsk.) Vierh. in a mangrove swamp at Ao Nam Bor, on the southeast coast of Phuket Island, Thailand. The O2 measurements were made in the field with a polarographlc oxygen minielectrode. The O2 concentration inside pneurnatophores was 63 to 88 % of ai...

Seasonal variation of atmospheric polycyclic aromatic hydrocarbons along the Kaohsiung coast.

Thirty-three air samples were collected by high-volume samplers from May 2007 to June 2008 in the coastal area of southwest Taiwan and analyzed for total suspended particulates (TSP) and polycyclic aromatic hydrocarbons (PAHs). Concentrations of TSP and total PAHs ranged from 40.4 to 251 μg m(-3) and 1.86-56.4 ng m(-3), respectively. Except for joss paper burning during the religious celebratio...