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Abstract - Issue Nov 2013, 34 (6) Back
nstantaneous and historical temperature effects on a-pinene
Studies
on the physico-chemical parameters in water of
Keibul
Lamjao National Park, Manipur, India
Aribam
Satish Chandra Sharma1,
Susmita Gupta1* and
N. Rajmuhon Singh2
1Department of Ecology
and Environmental Science, Assam University, Silchar-788 011, India
2Department of
Chemistry, Manipur University, Canchipur, Manipur-795 003, India
*Corresponding
Author email : susmita.au@gmail.com
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Publication
Data
Paper received:
17 January 2012
Revised received:
17 August 2012
Re-revised received:
29 November 2012
Accepted:
25 January 2013
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Abstract
A
study on the physico- chemical parameters of Keibul Lamjao National Park
(KLNP) on seasonal basis was carried out for parameters like temperature, pH,
transparency, turbidity, dissolved oxygen, chloride, hardness, calcium and
magnesium at six selected Stations. The temperature ranged from 10.4 to 28oC showing subtropical nature. pH
was consistent both spatially and temporally except at one Station where it
was alkaline having value ranging from 6.9 to 7.26. There was a trend in
dissolved oxygen to be more during cold season. Electrical conductivity
ranged between 105.56 to 201 ?S cm-1. It was high during the dry season and low during
rainy season. Transparency and turbidity values indicated that in most
Stations water was clear and the two parameters were found to be negatively
correlated (r= -0.381). Based on the hardness (41 to 78mg l-1), water was soft.
Significant negative correlation(r=-0.532) was found between rainfall and
hardness. Calcium and magnesium ions were found to be below the prescribed
value of WHO. These two parameters were found to be positively correlated
with hardness. ANOVA showed a significant variation in the parameters
recorded during winter and monsoon season.
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Key words
Keibul
Lamjao National Park, Loktak lake, Water quality
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