Thermal-optical evolved gas analysis (TOEGA) is a conventional method for classifying carbonaceous aerosols as organic carbon (OC) and elemental carbon (EC). Its main source of uncertainty arises from accounting for pyrolized OC (char), which has similar behavior to the EC originally present on the filter. Sample composition can also cause error, at least partly by complicating the charred carb...

introduction groundwater resources in arid-semiarid zones universally suffer from problems of over-abstraction and declining water tables. in addition to the issues related to quantity, degradation of groundwater quality now assumes major importance in the arid and semiarid regions. in such areas, natural factors such as the low precipitation, combined with high evapotranspiration, result in hi...

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 ...

The contamination from heavy metals has been rising from the last decade due to increase in industrialization. The heavy metals are toxic for living organisms. The accumulation of heavy metals may lead to severe health problems. Many drugs are known to remove heavy metals from living organisms but sometime they may be destructive. The need-of-the-hour; however is to evolve procedures for remova...