Potential PAH Release from Contaminated Sediment in Galveston Bay-Houston Ship Channel




Zhang, Chunlong (Carl), Gabriel Zheng, Gregory Holston, and George Lambert

Journal Title

Journal ISSN

Volume Title


Galveston Bay Estuary Program


The work presented herein describes our recent effort in investigating the potential release of PAHs from sediments collected from Houston-Galveston area..... To date no such information is available on the behavior of PAHs in aforementioned water systems. This work was initiated in order to gain a better understanding of the mass transfer of PAHs at the sediment-water interface. In particular, the emphases of this work are to: (1) develop a thermodynamic equilibrium model that describes the extent of PAH exchange between sediment and the overlying water, (2) quantify the kinetic rate of PAH sorption at the water-sediment interfaces and estimate the aqueous flux rate of PAH, (3) elucidate the key factors in contributing elevated PAH concentrations in the aqueous phase.


pg. 77


water quality, habitat, ecology, watershed management, polycyclic aromatic hydrocarbons, mutagenic, carcinogenci, teratogenic, sediment, pollution, re-suspension, diffusion, dissolution, desorption, naphthalene, phenanthrene, pyrene, ph