In the process of vermicomposting, the earthworms Eisenia fetida have been exposed to various metals with different concentrations to study the effects on worms’ bioaccumulation. The study was carried within 14 days of exposure. Five different chemical compounds in various concentrations were added as mixture solutions to the experimental containers. Metals concentrations were measured in earth...

background: due to the increasing pollution of water resources, this study was carried out for evaluation of water quality pollution indices for monitoring of heavy metals (as, zn, pb and cu) contamination in ghahavand plain, hamadan province, western iran during spring and summer 2012. methods: totally, 20 ground water wells were chosen randomly. the samples were filtered (0.45 μm) and maintai...

Background and objectives: Heracleum persicum (Golpar)is a native medicinal plant of Iran which belongs to Apiaceae family. The fruits of the plant have been used as spice for flavoring. They have also showed carminative, antioxidant, anticonvulsant, analgesic, anti-inflammatory, immunomodulatory and cytotoxic properties. In this study, toxicity of different fractions ...

this study was performed to explore the presence of heavy metals in some popular herbal medicines of the iranian market. primarily, this study was planned to do the task by the usp method. in the second step, those plants which contained more than 10 ppm of total heavy metals were analyzed by atomic absorption method. in this study, 43 popular herbal medicines were investigated according to the...

The beverage industry has been a heavy producer of organic pollution. The major contaminants found in waste are biodegradable organic compounds, volatile organic compounds, toxic metals, and recalcitrant xenobiotics, suspend solids, nutrients (Nitrogen and Phosphor) Microbial pathogens and parasites. Activated sludge flocs contain a wide range of microorganisms such as bacteria, Fungi, yeast, v...

The physiological importance of metals in human organism has been shown by many publications. The toxic doses of metals and their compounds can lead to serious health problems. Different metals present in the composition of blood can form different complexes with many organic compounds and biomolecules which could be found in the body fluids. Depending on the concentration of metals in the part...

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...

Background Release of toxic metals is one of most significant environmental problems since industrial revolution, mainly because heavy metals are not degraded and, therefore, remain in the environment. Some natural ecosystems may contain high heavy metals concentrations and, thus, it is not surprising that genes resistance to heavy metals are easily found in bacteria living in these environment...