Feature Article

Epidemiological studies consistently link ambient concentrations of particulate matter (PM) to negative health impacts, including asthma, heart attacks, hospital admissions, and premature mortality. The authors model ambient PM concentrations from ocean going ships using two geospatial emissions inventories and two global aerosol models. The authors estimate global and regional mortalities by applying ambient PM increases due to ships to cardiopulmonary and lung cancer concentration risk functions and population models.

Water Quality Index (WQI) is one of the most effective way to assess the quality of water. The present study is to assess the groundwater quality in relation to domestic use in village-Srungavarpu Kota (S.Kota) of Vizinagaram district of Andhra Pradesh.

Water quality of river Mandakini was assessed from Sati Anusuya to Karwi. Altogether 4 samples were collected from each sampling station and 5 sampling stations were selected for analysis. The quality analysis was made through the estimation of temperature, turbidity, DO, pH, EC, TDS, sodium, potassium, calcium, magnesium, carbonate, bicarbonate, chloride, sulphate, nitrate and phosphate.

The area chosen for study is A. Mettur. The aim of the present investigation is to conduct a door to door survey about the location of the houses, socio-economic status of the people and the problems encountered using the water was done. Bore well, well, canal, lake and river water samples were collected from different places and physico-chemical and biological parameters were analysed.

In Mayyanad panchayat of Kerala, drinking water is supplied by Kerala Water Authority through pipelines from 8 tube wells drilled for the purpose. An analysis of water quality showed that the mean water pH was 6.72, the colour and the iron content were above desirable limit and the total and faecal coliform counts were above desirable limit and permissible limits.

Increasing industrialization and population causes increase in living standard, which results decrease in the quality of water. The physico-chemical characteristic of water is important determinant of the aquatic system. The present study was carried out in the month of July, 2005 to June, 2006 for the water ponds of Ayodhya and Faizabad.

A study of ground water of industrial zone of Moradabad in Uttar Pradesh has been carried out to examine quality of water for drinking purposes. The samples were collected from bore wells, tubewells, hand pumps and jet pumps. The data was analyzed for various physico-chemical parameters.

In the present work water quality indices of Mandakini river, Chitrakoot have been determined on the basis of various water quality parameters for 3 seasons, namely post-monsoon and winter at 6 sampling sites.