关键词: |
storm water runoff,water pollution sampling,highways,salt river/arizona, water pollution sampling, basins, discharge(water), suspended solids, zinc, copper, lead, chromium, metals, phosphorus, ammonia, us epa, research program/arizona, water pollution sampling, basins, discharge(water), suspended solids, zinc, copper, lead, chromium, metals, phosphorus, ammonia, us epa, research program |
摘要: |
A comprehensive research program for the characterization of storm water runoff from an Arizona highway was conducted from January through December 2007. The study area covered a portion of the Loop 202 freeway west of Mesa Drive to a retention basin east of Lindsay Road in Mesa, Arizona. Storm water samples were collected from two storm water detention basins and a discharge point to the Salt River. The study was conducted by manually collecting storm water samples with passive automatic samplers and analyzing them for various roadway constituents. A primary objective of this research effort was to establish baseline values of constituents in ADOT highway runoff, aiding in the evaluation of related best management practices. A total of 16 storm water samples was collected from the research area between January 2007 and December 2007. The storm water sampling data indicates suspended solids (reported as total suspended solids, or TSS) were present in 14 of the 16 samples collected and zinc (reported as total zinc) was present in 13 out of 16 samples collected. Other heavy metals such as copper, lead, and chromium were occasionally detected. Phosphorous and ammonia were detected only once during this research program. TSS is the most significant pollutant, by mass, found in our nation's waterways, a standing consistent with the outcome of this research. It is important to note that exceedance of an Environmental Protection Agency benchmark does not constitute a storm water violation. / Title Note: Final rept. / Supplementary Notes: Sponsored by Arizona Dept. of Transportation, Phoenix. and Federal Highway Administration, Phoenix, AZ. Arizona Div. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5301 Shawnee Road, Alexandria, VA, 22312, USA. / NTIS Prices: PC A04/MF A04 / Monitor Agency Acronym: FHWA/AZ / Monitor Agency Number: 10-602 / Corporate Author Code: 888888888 / Classifivation: Unclassified report |