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Method TO-10A Pesticides/PCBs <br /> 3. Significance <br /> 3.1 Pesticide usage and environmental distribution are common to rural and urban areas of the United States. <br /> The application of pesticides can cause potential adverse health effects to humans by contaminating soil,water, <br /> air, plants, and animal life. However, human exposure to PCBs continues to be a problem because of their <br /> presence in the environment. <br /> 3.2 Many pesticides and PCBs exhibit bioaccumulative,chronic health effects;therefore,monitoring the presence <br /> of these compounds in ambient air is of great importance. <br /> 3.3 Use of a portable, low volume PUF sampling system allows the user flexibility in locating the apparatus. <br /> The user can place the apparatus in a stationary or mobile location. The portable sampling apparatus may be <br /> positioned in a vertical or horizontal stationary location(if necessary,accompanied with supporting structure). <br /> Mobile positioning of the system can be accomplished by attaching the apparatus to a person to test air in the <br /> individual's breathing zone. <br /> 3.4 Moreover,this method has been successfully applied to measurement of common pesticides in outdoor air, <br /> indoor air and for personal respiratory exposure monitoring(3). <br /> 4. Applicable Documents <br /> 4.1 ASTM Standards <br /> • D1356 Definition of Terms Relating to Atmospheric Sampling and Analysis <br /> • D4861-94 Standard Practice for Sampling and Analysis of Pesticides and Polychlorinated Biphenyls <br /> in Air <br /> • E260 Recommended Practice for General Gas Chromatography Procedures <br /> • E355 Practice for Gas Chromatography Terms and Relationships <br /> • D3686 Practice for Sampling Atmospheres to Collect Organic Compound Vapors (Activated Charcoal <br /> Tube Adsorption Method <br /> • D3687 Practice for Analysis of Organic Compound Vapors Collected by the Activated Charcoal Tube <br /> Adsorption <br /> • D4185 Practice for Measurement of Metals in Workplace Atmosphere by Atomic Absorption <br /> Spectrophotometry <br /> 4.2 EPA Documents <br /> • Compendium ofMethods for the Determination of Toxic Organic Compounds in Ambient Air: Method <br /> TO-10, Second Supplement, U. S.Environmental Protection Agency,EPA 600/4-89-018,March 1989. <br /> • Manual of Analytical Methods for Determination of Pesticides in Humans and Environmental <br /> Standards,U. S. Environmental Protection Agency,EPA 600/8-80-038,June 1980. <br /> • Compendium of Methods for the Determination of Air Pollutants in Indoor Air: Method IP-8, U. S. <br /> Environmental Protection Agency,EPA 600/4-90-010,May 1990. <br /> Page 10A-2 Compendium of Methodsjor Toxic Organic Air Pollutants January 1999 <br />