soil contamination significantly reduces environmental quality and affects human health. to investigate and assess the effects of land use on the concentrations of some heavy metals in surface soils of golestan province, 227 soil samples (0-60 cm) were collected from three types of land uses including agricultural lands, natural, and industrial areas. the total metals and metalloids (cr, se, as...

The standard index of microbial air contamination (IMA) for the measurement of microbial air contamination in environments at risk is described. The method quantifies the microbial flow directly related to the contamination of surfaces coming from microbes that reach critical points by falling on to them. The index of microbial air contamination is based on the count of the microbial fallout on...

Because of technical difficulties of isolating pathogenic bacteria from waters (even from waters known to be contaminated fairly recently), the presence or absence of Bacterium coli in water supplies and the relative numbers of this organism if present are recognized as indications of the presence and degree of faecal pollution. This is based on the assumption that the more bacteria of intestin...

PURPOSE To evaluate the contamination index of metals and pesticides in pregnant women, and to relate this to perinatal outcomes. METHODS Descriptive, retrospective, exploratory study, developed from existing secondary data analyses at Level III maternity center. A total of 40 mothers with their newborns (NB), living in a rural area in Botucatu- Brazil and surrounding region. Blood samples fr...

The possible effect of contrails in modifying the weather is reconsidered in the light of information obtained from ground-level contrails in Alaska. It appears likely that inadvertent cloud seeding b y jet aircraft may be of the same order of magnitude as that attained in commercial cloud seeding operations. Further investigation is needed; but in the meantime, the possibility of contrail cont...

Research has begun to demonstrate that contamination fears are comprised of both fear and disgust, but whether these emotions interact and how they may interact within the domain of contamination fears has not been researched. The present study investigated whether the fear of aversive sensations (i.e., anxiety sensitivity) interacts with the propensity to respond with disgust (i.e., disgust se...

The Sado Estuary in Portugal is a good example of a site where human pressures and ecological values collide with each other. An overall contamination assessment has never been conducted in a way that is comprehensible to estuary managers. One of the aims of this work was to select different types of index to aggregate and assess heavy metal contamination in the Sado Estuary in an accessible ma...