Record Details

Southwest monsoon influences the water quality and waste assimilative capacity in the Mandovi estuary (Goa state, India)

DRS at CSIR-National Institute of Oceanography

View Archive Info
 
 
Field Value
 
Title Southwest monsoon influences the water quality and waste assimilative capacity in the Mandovi estuary (Goa state, India)
 
Creator VishnuRadhan, R.
Sagayadoss, J.
Seelan, E.
Vethamony, P.
Shirodkar, P.V.
Zainudin, Z.
Shirodkar, S.
 
Subject AQUATIC POLLUTION
CHEMISTRY AND BIOGEOCHEMISTRY
CHEMISTRY AND BIOGEOCHEMISTRY
AQUATIC ECOLOGY, PRODUCTIVITY
AQUATIC POLLUTION
 
Description The monsoon-dominated Mandovi estuary is located in Goa state – a global tourist destination along the centralwest coast of India. In addition to factor analyses of water quality data, the water quality index (WQI), trophic state index (TSI) and percentage of freshwater volume in the estuary are calculated in order to infer the general waste assimilative capacity and prevailing water quality conditions. Factor analysis showed a dominance of PO4–P, NO2–N, NH3–N, total suspended solids (TSS) and turbidity during southwest (SW) monsoon relative to other seasons. The WQI suggested that an increase in nutrients, turbidity and TSS during SW monsoon increase the WQI values beyond 2, rendering the water at some locations slightly polluted. During pre-monsoon, considerable increase in the WQI is observed at all the upstream stations rendering slightly polluted water at these stations. The TSI showed an average value of 46.95 during SW monsoon, 42.43 during post-monsoon and 48.42 during the pre-monsoon seasons, suggesting better productivity level during pre-monsoon, followed by SW monsoon, but the least during the post-monsoon. All the seasons, however, indicated a mesotrophic condition in the estuary and the assimilative capacity of the estuary is found to be in good to fairly good state (pre-monsoon < SW monsoon < post-monsoon)
 
Date 2015-12-08T09:30:12Z
2015-12-08T09:30:12Z
2015
 
Type Journal Article
 
Identifier Chemistry and Ecology, vol.31(3); 2015; 217-234
no
http://drs.nio.org/drs/handle/2264/4871
 
Language en
 
Relation Chem_Ecol_31_217.jpg
 
Rights The final and definitive form of the preprint has been published in the "Chemistry and Ecology" © 2015 Taylor & Francis. "Chemistry and Ecology" is available online at http://www.tandfonline.com with open URL of article : http://dx.doi.org/10.1080/02757540.2014.961435. The term & condition associated with this preprint is at http://www.tandfonline.com/page/terms-and-conditions
 
Publisher Taylor and Francis