Conference program and abstracts - Coastal-Change.Org
Conference program and abstracts - Coastal-Change.Org Conference program and abstracts - Coastal-Change.Org
Coastal resilience on microbial pollution: a study along the estuarine region of Coromandel coast, Southern India Arthur James, R., Vignesh, S Muthukumar, K and Santhosh Gokul, M. Department of Marine Science, Bharathidasan University, Tiruchirapalli – 620 024 INDIA Email: james.msbdu@gmail.com / marine@bdu.ac.in ABSTRACT Coastal waters have traditionally been considered as the ultimate sink for the by-products of human activities. The key sources of pollutants affecting coastal water quality are river-in inputs of domestic, agricultural, and industrial effluents and direct sewage discharges from the local population. Over 250 million cases of gastroenteritis and respiratory diseases and 5–10 million cases of hepatitis are reported annually from coastal regions all over the world. The Tamil Nadu coast has several perennial and non perennial rivers, which flow west to east towards the Bay of Bengal and Gulf of Mannar. A study was undertaken to assess the pollution indicators and human pathogenic bacteria along the 1076km length of coastal and estuarine region of Tamil Nadu, India. Important estuarine region covered in this study are Kaveri, Vaigai, Tamiraparani, Periyar, Pennar, Coovum, and Adyar. It is located between 8° 00'-13° 30'N latitude and 76° 15'-80° 18'E Longitudes. The aim is to estimate the concentration of the pathogen indicator organisms in the Estuaries of Tamilnadu rivers and understand their seasonal variations in different locations. Samples (water and sediment) were collected from 20 different sites with different estuarine regions representing summer - May 2011, monsoon - October and winter - December and were subjected to bacteriological analysis, i.e. total viable count (TVC), total coliform count (TC), total streptococci count (TS), total vibrios count (VLO) and five different types of pathogenic bacteria counts were also studied. All groups of indicatory bacteria were 100-1000 times more numerous in the sediments than in water. The results of bacteriological analysis of water revealed that the situation is alarming. High positive correlation among bacterial parameters with low among physicochemical parameters proves they we are not mutually associated with each other.The monsoon season showed presence of high level of bacterial pollution indicators indicated the presence of disease causing group of bacterial population in both the sample and its sequence was observed as monsoon>summer>winter. It is suggested that inclusion of these groups could be made mandatory in coastal and estuarine waters for the environmental impact assessment. The Fourth IGCP 588: PREPARING FOR COASTAL CHANGE 9
Impact Of Industrialization In The Coastal Sediments Off Cuddalore, Se-Coast Of India, Tamil Nadu, India Jayaprakash. M and Gopal. V Department of Applied Geology, University of Madras, Chennai-600 025, Tamilnadu, INDIA. ABSTRACT Coastal sediments are significant hosts for pollutant trace metals, however analytical difficulties can prevent them being included in routine environmental monitoring programmes. In order to identify a suitable approach to the problem, an established simple technique has been evaluated for the initial assessment of trace metal pollution in coastal sediments. Twenty five surface sediment samples collected during 2013, from the inner shelf region of the Bay of Bengal, were analysed for the Total Trace Metals (TTMs) (Fe, Mn, Cr, Cu, Pb, Zn, Co, Ni and Cd), Sediment Texture, OC, and CaCO3 to evaluate geochemical processes influencing their distribution. The content of calcium carbonate in the surface sediments of shelf region of study area was generally low. Enhanced percentage of organic matter is attributed to decreasing grain size, protective action of clay and other pollutants. The mean percentage of total Fe is 1.05%. Among the environmentally significant trace metals analyzed, cadmium shows low concentrations in the range from 0.054 to 0.124 mg/l with a mean concentration of 2.84 mg/l in the sediments. Zinc shows High concentrations in the range from 15.8 to 93.6 mg/l with a mean concentration of 37.7 mg/l in the sediments. The concentrations of Zn are somewhat lower for sandy sediments and higher for sediments containing abundant organic matter. Further the obtained total Cr concentrations were moderate when compared to the concentrations of many samples were higher with that of reported Cr (84 mg/l) in the Bay of Bengal. Statistically significant spatial variation was observed among all sediment variables. Correlation analysis showed that the metal content of sediments was mainly regulated by organic carbon, Fe oxy-hydroxides, and grain size. The higher concentration of coarse sediments at the continental shelf is due to tidal, wave and current effects. It is well known that the east coast is subjected to both erosion and accretion. The highest levels of sediment-associated contaminants have been measured in coastal areas that are influenced by point sources of pollution, primarily from municipal and industrial sources. References 1. Gaudette HE, Flight WR, Toner L, Folger DW (1974) An inexpensive titration method for the determination of organic carbon in recent sediments. J Sediment Petrol 44:249–253. 2. Loring DH, Rantala RTT (1992) Manual for the geochemical analyses of marine sediments and suspended particulate matter. Earth Sci Rev 32:35–283. 3. Jonathan MP, Ram Mohan V, Srinivasalu S (2004) Geochemical variations of major and trace elements in recent sediments, off the Gulf of Mannar, the southeast coast of India. Environ Geol 45:466–480. 10 The Fourth IGCP 588: PREPARING FOR COASTAL CHANGE
- Page 12 and 13: CONTENT Tsunami history along the c
- Page 14 and 15: A Methodology to Develop a Report C
- Page 16 and 17: Tsunami history along the coastline
- Page 18 and 19: 2004 Tsunami and Tsunamigenic sedim
- Page 22 and 23: Hazard Line Mapping Of Mahadi Delta
- Page 24 and 25: Millennial-scale records of North A
- Page 26 and 27: Indian Southwest Monsoon Variabilit
- Page 28 and 29: Coastal wind climate, coastal dunes
- Page 30 and 31: Benthic Foraminifera and siltation
- Page 32 and 33: Wetland Ecosystem of Mahanadi Delta
- Page 34 and 35: pollen and charcoal concentration,
- Page 36 and 37: Palaeo-environmental reconstruction
- Page 38 and 39: Vulnerable Deltas of Indian Coast P
- Page 40 and 41: The Coastal and Marine Tourism of E
- Page 42 and 43: Mangroves and Coastal Changes in In
- Page 44 and 45: Investigating inter--‐annual and
- Page 46 and 47: High Resoluation Holocene Climatic
- Page 48 and 49: Geochemical characteristics of surf
- Page 50 and 51: Seawater Intrusion Due to Temporal
- Page 52 and 53: Mineral magnetic study of coastal s
- Page 54 and 55: Phosphorus dynamics of water - sedi
- Page 56 and 57: Evaluation of major hydrogeochemica
- Page 58 and 59: A Methodology to Develop a Report C
- Page 60 and 61: Seaweeds culture and its impacts on
- Page 62 and 63: An Environment Management Plan In A
- Page 64 and 65: Subsurface Geomorphological Study o
- Page 66 and 67: Morphosedimentary evidences of rapi
- Page 68 and 69: Hydrogeochemical assessment of huma
<strong>Coastal</strong> resilience on microbial pollution: a study along<br />
the estuarine region of Corom<strong>and</strong>el coast, Southern<br />
India<br />
Arthur James, R., Vignesh, S Muthukumar, K <strong>and</strong> Santhosh Gokul, M.<br />
Department of Marine Science, Bharathidasan University, Tiruchirapalli –<br />
620 024 INDIA<br />
Email: james.msbdu@gmail.com / marine@bdu.ac.in<br />
ABSTRACT<br />
<strong>Coastal</strong> waters have traditionally been considered as the ultimate sink for<br />
the by-products of human activities. The key sources of pollutants<br />
affecting coastal water quality are river-in inputs of domestic, agricultural,<br />
<strong>and</strong> industrial effluents <strong>and</strong> direct sewage discharges from the local<br />
population. Over 250 million cases of gastroenteritis <strong>and</strong> respiratory<br />
diseases <strong>and</strong> 5–10 million cases of hepatitis are reported annually from<br />
coastal regions all over the world. The Tamil Nadu coast has several<br />
perennial <strong>and</strong> non perennial rivers, which flow west to east towards the<br />
Bay of Bengal <strong>and</strong> Gulf of Mannar. A study was undertaken to assess the<br />
pollution indicators <strong>and</strong> human pathogenic bacteria along the 1076km<br />
length of coastal <strong>and</strong> estuarine region of Tamil Nadu, India. Important<br />
estuarine region covered in this study are Kaveri, Vaigai, Tamiraparani,<br />
Periyar, Pennar, Coovum, <strong>and</strong> Adyar. It is located between 8° 00'-13° 30'N<br />
latitude <strong>and</strong> 76° 15'-80° 18'E Longitudes. The aim is to estimate the<br />
concentration of the pathogen indicator organisms in the Estuaries of<br />
Tamilnadu rivers <strong>and</strong> underst<strong>and</strong> their seasonal variations in different<br />
locations. Samples (water <strong>and</strong> sediment) were collected from 20 different<br />
sites with different estuarine regions representing summer - May 2011,<br />
monsoon - October <strong>and</strong> winter - December <strong>and</strong> were subjected to<br />
bacteriological analysis, i.e. total viable count (TVC), total coliform count<br />
(TC), total streptococci count (TS), total vibrios count (VLO) <strong>and</strong> five<br />
different types of pathogenic bacteria counts were also studied. All<br />
groups of indicatory bacteria were 100-1000 times more numerous in the<br />
sediments than in water. The results of bacteriological analysis of water<br />
revealed that the situation is alarming. High positive correlation among<br />
bacterial parameters with low among physicochemical parameters<br />
proves they we are not mutually associated with each other.The monsoon<br />
season showed presence of high level of bacterial pollution indicators<br />
indicated the presence of disease causing group of bacterial population<br />
in both the sample <strong>and</strong> its sequence was observed as<br />
monsoon>summer>winter. It is suggested that inclusion of these groups<br />
could be made m<strong>and</strong>atory in coastal <strong>and</strong> estuarine waters for the<br />
environmental impact assessment.<br />
The Fourth IGCP 588: PREPARING FOR COASTAL CHANGE 9
Change language