[en] Ecosystems worldwide are being affected by numerous kinds of anthropogenic activities. Rapid and uncontrolled industrial growth in most part of the developing world has aggravated environmental contamination, some of which are potent pollutants. It is common knowledge that such pollutants significantly affect human health, as is the case with heavy metals and with organic dusts as an emerging concern. There is a distinction between pollution and contamination, in that a contaminant may be present in a given medium with or without causing harmful effects. Pollutants are regarded as agents causing harm to the environment subsequently leading to impairment of human health. Certain pollutants (e.g. lead absorption by anaemic subjects) cause ill health effects including deterioration of the nutritional status of individuals. Up until now, nutritional status and environmental pollution have mostly been treated as separate issues and there is very little information available about their relationship. Yet, previous studies have indicated that nutrition and pollution are interconnected with regard to their effects on human health. In recent years, a great deal of effort has been put into developing sensitive methods of measuring pollutants both in the environment and biological systems. However, the quantitative evaluation of impacts on health is still in its infancy and therefore far from satisfaction. To monitor the interaction between environmental pollution and nutrition, as well as health status, some indicators exist. Breast milk is an example of an indicator used for Real Time Monitoring (RTM). It has been demonstrated that the effect of the presence of pollutants in breast milk has an effect on morbidity and growth faltering in the nursing infant. Similarly, other non-invasive indicators such as urine and saliva and less invasive ones, as whole blood have commonly been used to monitor some pollutants (e.g. toxic metals). Placenta can also be employed as a dual indicator for RTM, reflecting the pollutant status in both mother and fetus. Hair, adipose tissue (to monitor organic pollutants), and hard tissues such as bone and teeth (to monitor selected elements, particularly Pb, Sr and Ur) have been used as Long Term Monitoring (LTM) specimen. In this context, the International Atomic Energy Agency (IAEA) is actively contributing through coordinated research project mechanisms to the development of isotopic techniques applicable for pollution-nutrition interactions. This CRP is based on the recommendations of a Consultants' Meeting on 'Nuclear analytical and isotope techniques for assessing Nutrition-pollution interactions' held in Vienna, 11-15 December 2000. This report summarizes the main activities of the first RCM held at the IAEA Headquarters in Vienna from 6 to 10 May 2002. The countries participating in this CRP are: Bangladesh, Brazil, Chile, China, India, Kenya, Korea, Morocco, Peru, Sweden and Viet Nam