Science news articles about 'usepa'

... not pose any risk to human health or the environment, if biosolids are land applied according to the USEPA regulations. The District has on-going research to investigate the trend of dioxins levels ...

... is regulated by the U.S. Environmental Protection Agency (USEPA) because of concerns related to infant health and ... seven well networks increased above the USEPA maximum contaminant level of 10 parts ...

... as small as 1,000 times below USEPA drinking-water standards. Of the 80 compounds ... per billion, or more than 10 times lower than applicable USEPA drinking-water standards. Characterization of trends ...

... sludges that have been treated to contain fewer than 2.0 x 106 fecal coliforms/dry gram. The USEPA estimates that 6.3 million tonnes of Class B biosolids are generated in the United States each year, ...

... , unlike tests required for the protection of animals. Past research conducted by the USEPA and others have shown that plant development/reproduction is not adequately protected with the current test ...

... on Climate Change guidelines for national greenhouse gas inventories. Currently, for regulatory purposes the USEPA has recommended a default value for landfill cover CH4 oxidation of 10% due to the ...