In this paper, snow samples containing dust particles from several sampling points around the city of Ostrava were analyzed. The pH values of sampled snow were measured and solid particles analyzed. Particle size, zeta potential and content of selected heavy metals were determined in solid particles. The pH values of most samples lay in the slightly acid region. Mean values of particle size ran...

Many soils are contaminated by heavy metals, with arsenic posing serious environmental threat. Enrichment of soil with phosphate is believed to reduce the arsenic toxicity. However, only a few attempts have already been conducted towards understanding the precise role of phosphate in controlling As toxicity. Moreover, there is no adequate information on the effect of phosphate on As-induced...

Two freshwater fishes, Rasbora sumatrana (Cyprinidae) and Poecilia reticulata (guppy) (Poeciliidae) were exposed for a four-day period in the laboratory condition to a range of copper (Cu) and cadmium (Cd) concentrations. Mortality was assessed and median lethal concentrations (LC50) were calculated. LC50 increased with decrease in mean exposure times for both metals. For R. sumatrana, LC50s fo...

background: heavy metals contaminations are recognized as the serious risk to our environment. the aim of the present study was to analyze heavy metals residue in cultivated mango samples from iran. methods: totally, 72 mango samples were randomly collected among six different mango genotypes cultivated in southern iran from june to july 2015. lead, chromium, cadmium, and arsenic were determine...

introduction: nowadays, advancements in industries, technology and human welfare level have lead to accumulation of solid wastes and have endangered environmental health. incorrect waste management intensifies this problem. recycling and composting (transformation of organic waste to humus) are the most important ways in waste management. health and safety of the compost is an important issue b...

There is an increasing concern about heavy metal contamination in farmland in China and worldwide. In order to reveal the spatial features of heavy metals in the soil-rice system, soil and rice samples were collected from Nanxun, Southeastern China. Compared with the guideline values, elevated concentrations of heavy metals in soils were observed, while heavy metals in rice still remained at a ...