presence of toxic metals in agricultural soils can impose adverse health impact on consumers. the main purpose of this study was to determine spatial distribution of elements fe, sb, mn in agriculture soils and crops of hamedan province in iran. soil samples (0-20 cm depth) were collected from an area of 2831 km2.  iron, antimony and manganese in samples of soil and agricultural crops were extr...

Rapid urbanization and economic development inevitably lead to light pollution, which has become a universal environmental issue. In order to reveal the spatiotemporal patterns and evolvement rules of light pollution in China, images from 1992 to 2012 were selected from the Defense Meteorological Satellite Program Operational Linescan System (DMSP/OLS) and systematically corrected to ensure con...

Al2 (SO4)3, 18H2O, FeCl3 and Ca (OH)2 were used for the treatment of tannery wastewaters. The influences of pH and coagulant dosages were studied. Conditions were optimised according to the pollutant removal efficiencies, the volume of decanted sludge and the biodegradability index improvement. The results indicate that 6771% of total COD, 76-92% of color and 79-97% of Cr can be removed using t...

This report is prepared based on the recommendations of the Expert Group constituted by Central Pollution Control Board (CPCB), and is being released for seeking public views/comments. The report is also available on CPCB's website, [email protected].

Introduction Conclusions References Tables Figures

Ambient (outdoor) air pollution is now recognized as an important problem, both nationally and worldwide. Our scientific understanding of the spectrum of health effects of air pollution has increased, and numerous studies are finding important health effects from air pollution at levels once considered safe. Children and infants are among the most susceptible to many of the air pollutants. In a...

Landfilling is one of the most widely used techniques, despite its numerous environmental problems, for the treatment and disposal of solid wastes. Significant effort has been directed toward the development of improved landfill designs to reduce the negative environmental impacts. Still, at present, about three quarters of the countries and territories around the world use 'open dumping' metho...