Biological methods Environmental Protection Agenc

Mahar, H., Evaluation of Selected Methods for Chemical and Biological Testing of Industrial Particulate Emissions. U. S. Environmental Protection Agency Report, EPA-600/2-76-137, NTIS No. PB 257-912/AS (5/76). 

Isukapalli SS, Georgopoulos PG (2001) Computational methods for sensitivity and uncertainty analysis for environmental and biological models. Research Triangle Park, NC, United States Environmental Protection Agency, Office of Research and Development, National Exposure Research Laboratory, 145 pp. (EPA/600/R-01-068 http //www.ccl.rutgers.edu/reports/EPA/edmas v3 epa.pdf). 

Stanley JS (1984), EPA Publication 560/5-84-001.. .Methods of analysis of for polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) in biological matrices - literature review and preliminary recommendations", US Environmental Protection Agency, Washington, D.C. 

Anonymus (1973) Biological Field and Laboratory Methods for Measuring the Quality of Surface Waters and Effluents. U.S. EPA Report No. 670/4-73-001. Cincinnati United States Environmental Protection Agency. 

Levels of [N03] in waste water are controlled by legislation, limits being recommended by the World Health Organization, the Environmental Protection Agency (in the US) and the European Community. Nitrites, because of their toxicity, must also be removed. Methods of nitrate removal include anion exchange, reverse osmosis (see Box 15.3), and denitrification. The last process is a biological one in which certain anaerobic bacteria reduce [N03] and [N02] to N2 ... 

According to the US Environmental Protection Agency (US EPA 1999), NA can only be relied on within the context of a carefully controlled and monitored site clean-up approach to achieve site-specific remedial objectives within a time frame that is reasonable compared to that offered by other more active methods. The natural attenuation processes that are at work in such a remediation approach include a variety of physical, chemical, or biological processes that, under favorable conditions, act without human intervention to reduce mass, toxicity, mobility, volume, or concentration of contaminants in soU and groundwater. 

The analysis of environmentally relevant samples is a major field of application [243] and many standard methods have been developed, e.g., by bodies such as the US Environmental Protection Agency [244], [245]. This covers procedures for sample preparation and determination of 25 metals in waters, wastes, and biological samples. Details of quality assurance procedures, and interference correction are included. 

State of Ohio Environmental Protection Agency. 1987. Biological Criteria for the Protection of Aquatic Life Vol 3 - Standardized biological Field Sampling and Laboratory Methods for Assessing Fish and Macroinvertebrate Communities. Columbus, OH, USA. 

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