Feature Article

The World Bank has come up with a Global Strategy and Booster Program for the years 2005-2010 to control malaria. But Amir Attaran of the Institute of Population Health and Faculty of Law, University of Ottawa, Canada, has argued in The Lancet that the bank does not have the expertise to promote the right strategy.

Malaria is transmitted by the genus Anopheles. India has 58 species, of which six are important: An culicifacies, An fluviatilis, An minimus, An sundaicus , An stephensi and An dirus. In the northeast, An minimus and An dirus are the major vectors

Hathli is sub-tributary of river Beas in outer Himalayas. It is getting polluted due to wastewater of Hamirpur town in Himachal Pradesh, India. The pollution impact is severest in the low flow months. Steep slopes, pools, riffles and small waterfalls thus characterize the stream. the streambed consists of stones and cobbles.

The present work aims to study the level of fluoride in bore well, open well, and in handpump water samples of different places of Virudhunagar district, Tamil Nadu, and also to analyse other water quality parameters, like pH, electrical conductivity, turbidity, acidity, alkalinity, total solids, chlorides, iron, sodium, potassium, fluorides and total hardness.

Lakes are usually an integral part of a drainage basin. Lakes are either fresh water or salt water lakes. Kolleru lake is the largest freshwater lake in South India. Various physical and chemical inputs manifested through the hydrology of the catchment area will affect the quality and quantity of lake water.

Ten different trace metals in Gagan river water at thirteen different sites in and around Moradabad were estimated by ICP-AES technique and the data was compared with water quality standards prescribed by WHO. River was found to be excessively contaminated for copper, iron, lead concentrations and moderately contaminated for nickel and cadmium.

Ground water samples were collected from 18 wards of Coimbatore city south zone, among which 2 samples were collected from 2 different locations from each ward, totaling 36 samples.

The present study deals with the physico-chemical parameters of ground water quality in Mundargi taluk of Gadag district, Karnataka state, the study has been carried out during September 2003.

Ground and well water samples were collected from Manchankoppu, Tiruchirappalli district. Physical parameters, such as temperature, odour, taste, turbidity, pH and conductivity and chemical parameters and compared with ISI, WHO and USPHS. Sulphate, silicate, phosphate, nitrite and nitrate contents were also analysed.

The quality of ground water samples collected from 7 representatives tubewells in rural areas around Angul-Talcher industrial zone, Orissa was assessed in the rainy, winter and summer from July 2001 to June 2003. A total of 20 physico-chemical characteristics were analysed. Some parameters were found within and some parameters beyond the desirable limit for drinking purpose.