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Vol. 27 No. 4 (2015): Vol 27 Issue 4

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Aldrin Contamination in Ennore Estuary and Coastal Waters of Chennai, East Coast of India

https://doi.org/10.14233/ajchem.2015.18066
S. Sundararajan
Coastal and Environmental Engineering Division, National Institute of Ocean Technology, Ministry of Earth Science, Pallikaranai, Chennai-600 100, India
R. Karthikeyan
Coastal and Environmental Engineering Division, National Institute of Ocean Technology, Ministry of Earth Science, Pallikaranai, Chennai-600 100, India
Prince Prakash Jabakumar
Coastal and Environmental Engineering Division, National Institute of Ocean Technology, Ministry of Earth Science, Pallikaranai, Chennai-600 100, India
S. Raghumaran
Coastal and Environmental Engineering Division, National Institute of Ocean Technology, Ministry of Earth Science, Pallikaranai, Chennai-600 100, India

Corresponding Author(s) : S. Sundararajan

srajan@niot.res.in

Asian Journal of Chemistry, Vol. 27 No. 4 (2015): Vol 27 Issue 4

Abstract

The Ennore estuary and nearby coastal area is a typical environment in Chennai, East coast of India which was studied for presence of aldrin concentration in the coastal water. Samples were collected semi-diurnally from Ennore estuary and Chennai coast for 48 h. The concentration was determined by gas chromatography with electron capture detector. The aldrin concentration in Ennore estuary varied from 4.82 ± 0.13 to 21.88 ± 1.18 ng/L and 9.49 ± 0.28 to 52.75 ± 2.04 ng/L during the high and low tides respectively. In the nearby coastal waters, the concentration varied from 2.24 ± 0.24 to 4.51 ± 0.19 ng/L and 3.14 ± 0.13 to 5.32 ± 0.30 ng/L during the high and low tides respectively. There is a significant (P < 0.000) spatial variation of aldrin concentration in the Ennore estuary during low tide, while during high tide, the spatial variation in the concentration is altered and more or less uniform among the first 4 sites (WQE-1 to WQE-4). This indicated that the tide influences aldrin concentration as well as change in the spatial spreading. However, in Chennai coast, the spatial variation in aldrin concentration is very minimal at low tide whereas in high tide, concentration became uniform in all the sites except WQC-6. In both Ennore estuary and Chennai coast, between high and low tides showed significant (P < 0.05) difference in aldrin concentrations except WQC-2 in Chennai coast.

Keywords

Organochlorine Aldrin Chennai coast and Ennore estuary
Sundararajan, S., Karthikeyan, R., Prakash Jabakumar, P., & Raghumaran, S. (2015). Aldrin Contamination in Ennore Estuary and Coastal Waters of Chennai, East Coast of India. Asian Journal of Chemistry, 27(4), 1417–1420. https://doi.org/10.14233/ajchem.2015.18066
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