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Observations of petroleum hydrocarbons and some water quality parameters during oil spill , near Madras Harbour

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Title Observations of petroleum hydrocarbons and some water quality parameters during oil spill , near Madras Harbour
 
Creator Selvaraj, K
Jonathan, M P
Mohan, V Ram
Thangaraj, G S
Pugalendhi, M
Jayararnan, B
 
Description 245-248
Status of water quality and accumulation of petroleum hydrocarbons (PHC) in
intertidal sediment of the area affected by oil spill were studied. PHC
concentration in water was 11-139 μg.l-1 with higher concentrations
at southern stations, away from the actual location of the oil spill. The PHC
level in the intertidal sediment varied widely from 4-11,059 mg.kg-1
having presence of oil patches at middle stations. Dissolved oxygen (DO) varied
from 0.582-6.098 mg.l-1 with higher concentrations at northern
stations. Nitrite was very low (BDL-0.919 μg-at Nl-1). Nitrate
content was BDL-9.234 μg-at N l-1 that was lower as compared with
the baseline values. The lower values of nitrate at southern stations of the
study area may be due to utilization of the species in absence of sufficient
oxygen. The high phosphate content (1.832-8.850 μg-at P l-1) may
possibly originate through sewage discharge in the estuaries. Oxidation and
microbial degradation of oil by bacteria utilizing DO and nitrate as a source
leads to poor physico-chemical condition of the coastal ecosystem severely
affecting the biota in this region.
 
Date 2014-01-13T06:05:46Z
2014-01-13T06:05:46Z
1999-09
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/25542
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.28(3) [September 1999]