The future adequacy of freshwater resources is difficult to assess, owing to a complex and rapidly changing geography of water supply and use. Numerical experiments combining climate model outputs, water budgets, and socioeconomic information along digitized river networks demonstrate that (i) a large proportion of the world's population is currently experiencing water stress and (ii) rising water demands greatly outweigh greenhouse warming in defining the state of global water systems to 2025.
Pulmonary responses of children chronically exposed to ambient air pollution in Calcutta have been investigated. A total number of 153 children from Calcutta and 116 from rural West Bengal in the age group of 6-17 yr were included in this study. Respiratory symptom complex, sputum cytology and micronucleus (MN) count of buccal epithelial cells were evaluated.
A method was developed and validated for determination and quantitation of tilmicosin residues in swine, cattle, and sheep edible tissues, as well as chicken fat, skin, and muscle over a concentration range of 0.025 microg/g-20 microg/g. For chicken kidney and liver, the method was validated over a range of 0.060 microg/g-20 microg/g.
Assam, India, is one of the last remaining strongholds of the Indian rhino, an animal that is dependent on conservation because of threats from poaching and destruction of habitat. Field research was carried out in Assam to ascertain the current state of the rhino and to evaluate various threats. This paper highlights the latest status of rhino in Assam after the census of 1999, and the intense fieldwork carried out between January 1998 and September 2000. Poaching and floods are both named as major problems that greatly hamper conservation.
The prevalence of respiratory problems and the ventilatory functions in subjects belonging to three sample areas with different levels of pollution was studied to ascertain if there is any association between air pollutant levels and abnormal ventilatory functions.
Fluoride is known to contaminate groundwater reserves globally. Excess fluoride, wherever present in groundwater in INdia, is mainly in the concentration range of 1.5 to 6.5 mg L-1 against its critical limit of 1.5 mg L-1 in drinking water.
If post Independence leaders of India had ensured full literacy, a solution would have been in sight for a lot of problems. Population, for one. But, today, in order to achieve the objectives of balanced social development and population stabilisation, th
