International Journal of Environmental Sciences

Volume 6 Issue 6 2016- May 2016 Pages: 922- 933 <<Previous    Next>>

Environmental impacts of accidental black liquor dischargeinto the Pearl River, Louisiana: A geospatial evaluation

Author Information:

Anil Raj Kizha1, Sibi Balachandran2, Buddhika Madurapperuma3, Hugo Lima4
1- School of Forest Resources, University of Maine, Orono, Maine, USA
2- South Indian Education Society- Indian Institute of Environment Management, Navi Mumbai, Maharashtra, India
3- Department of Environmental Science and Management, Humboldt State University, Arcata, California, USA
4- Department of Oceanography and Limnology, Federal University of Maranhao, Sao Luis, Brazil


An accidental discharge of black liquor on 9th of August, 2011by Temple-Inland paper millinto the Pearl River in Bogalusa, Louisiana, USA, resulted in the death of more than 38,000 fishes. The river water turned black and the effects were seen for over 100km downstream. There was a drastic drop in the dissolved oxygencontent, whichled tothe fish kill. Following the incident, the Louisiana Department of Environmental Quality investigated the accident scene and collected water quality parameters, which included dissolved oxygencontent, salinity, temperature, and pHat different location mainly downstream to the discharge point. This study aims to understand the route and concentration of pollutants over a period of time along the river with the help of GIS using the technique of interpolation. The generated maps showed the level of dissolved oxygen with respect to the fish kill locations from 13th of August 2011 to 25th of August 2011 after the accidental discharge. The results showed a virtual aspect of the chronology in dissolved oxygen level and improved water quality after an upstream reservoir was opened, which flushed the black liquor to the Gulf of Mexico.

Keywords: Industrial discharge, dissolvedoxygen, interpolation, water quality


© 2016 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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