Zn, Cu and Pb levels in the aquatic phase and underlying surface sediment from three stations (viz. Shankarpur, Canning and Bali Islands) of the coastal zone of West Bengal during different seasons in 2002 were recorded. The order of the heavy metal level in the ambient media of the selected stations is Zn> Cu> Pb.
Concentrations of Hg, total organic carbon (TOC), Al, Fe and Mn were determined in sediment of the Amba Estuary between the mouth and the head over a distance of 24 km in December and May during 1997-2002. Temporal and spatial changes in metal concentrations appear to be due to sediment movement associated with tidal movements.
Calcutta, Feb. 26: The state cabinet has cleared a deep-water port to be built on reclaimed land, the first of its kind in the country, in the Hooghly river estuary.
The port, with a depth of 21 metres, will allow big ships carrying crude and other cargo to offload near Haldia and Nayachar, a region where Bengal
The present investigation deals with the analysis of physico-chemical characteristics, concentration of heavy metals and textural analysis of sediments in Poovar estuary of Kerala during the period 2004-2005. Three sampling stations were selected and sediments were collected for the study.
commercial fisheries are often held responsible for the decline of fish population worldwide. A study in the us has found that changes in the flow of a river are also a major cause. It affects
This research paper presents the monitoring results of heavy metal pollution across seven sampling stations in Vasai region located on the western coast of India.
Mangrove forests are extraordinarily diverse coastal communities anchored by salt-tolerant plants along certain tropical seacoasts. Their distinctive aerial roots help to trap sediment, prevent shoreline erosion, and provide habitat for a variety of sea life. Their unique mode of viviparous reproduction (producing seeds that germinate before becoming detached from the parent plant) allows for the rapid dissemination of viable young plants. Mangrove swamps or forests are among the most productive wetlands on the planet.
The histopathological studies are useful in evaluating the pollution potential of toxicants since trace levels of chemicals do not bring about animal mortality over a given period and are capable of inducing considerable damage to organ.
Cochin backwaters, a micro tidal estuary, undergo a characteristic transformation from a river dominated system during summer monsoon to a tide-dominant system during pre-monsoon season. The present study observes that as the river flow weakens after monsoon, the flushing of the estuary
