Manganese, zinc, lead, copper, chromium and cadmium concentrations in snow collected in an urban area and its environs and snow clumping stations were determined for the snow from an area a]ong the basin of the Toyoliira River which runs tlirough Sapporo City in Hokkaido. These elements were chosen because they can be commonly founcl in mttnicipal, industrial and minlng eMuents. We studiecl the...

p p m t artin Hickman maneuvered his way into the office and ulled up his sleeve as the medical assistant put the brake on is wheelchair and fastened the blood pressure cuff around is oversized upper arm. A bulky 56-year-old man with a eavy shock of gray hair teetering on the edge of his orehead, his problem list included type 2 diabetes mellitus, hronic obstructive pulmonary disease, hypertens...

.....................................................................................................................4 Introduction/Background............................................................................................... 5 Developmental Nature of Breast Cancer...........................................................................6 Sources of Metals.............................

background: various chemicals are used to produce polymers ,leakage of polymer materials over the time , can cause health problems the aim of this research was to evaluate the leakage of heavy metals from the pvc and polypropylene pipes used in the water distribution system in isfahan. methods: four brands of pp pipes and two various types of pvc pipes were analyzed in this study. concentration...

Industrial metals are now ubiquitous within the atmosphere and their deposition represents a potential source of contamination to surficial environments. Few studies, however, have examined the environmental fate of atmospheric industrial metals within different surface environments. In this study, patterns of accumulation of atmospherically transported industrial metals were investigated withi...

Heavy metals in textile wastewater represent a major environmental problem, and are a potential danger to human health when present on textiles. Furthermore, the presence of some metals influences the production of textiles. Heavy metals are often used as oxidizing agents, as metal complex dyes, dye stripping agents, fastness improvers, and finishers. Thus, they act as hazardous sources through...

Metals are ubiquitous and play a critical role in neurobiology. Transition metals are important because they alter the redox state of the physical environment. Biologically, transition metals catalyze redox reactions that are critical to cellular respiration, chemical detoxification, metabolism, and even neurotransmitter synthesis. Many metals are both nutrients and neurotoxicants, such as iron...

There is growing evidence that micronutrient intake has a significant effect on the toxicity and carcinogenesis caused by various chemicals. This paper examines the effect of micronutrient status on the toxicity of four nonessential metals: cadmium, lead, mercury, and arsenic. Unfortunately, few studies have directly examined the effect of dietary deficiency or supplementation on metal toxicity...