Download or read book The Development of a Method for the Determination of Sulfur Dioxide in Stack Gas Emissions by Ultraviolet Absorption Spectroscopy written by H. Eugene Winkler and published by . This book was released on 1974 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods of Measuring and Monitoring Atmospheric Sulfur Dioxide written by Seymour Hochheiser and published by . This book was released on 1964 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book N A P C A Abstract Bulletin written by United States. Environmental Protection Agency and published by . This book was released on 1971 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications Bibliography 1971 1975 Environmental Research Center written by United States. Environmental Protection Agency. Office of Research and Development and published by . This book was released on 1976 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Protection Research Catalog Indexes written by Smithsonian Science Information Exchange and published by . This book was released on 1972 with total page 1478 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Instrument Development and Measurements of the Atmospheric Pollutants Sulfur Dioxide Nitrate Radical and Nitrous Acid by Cavity Ring down Spectroscopy and Cavity Enhanced Absorption Spectroscopy written by David Salvador Medina and published by . This book was released on 2011 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfur dioxide (SO[subscript 2]), nitrate radical (NO[subscript 3]), and nitrous acid (HONO) play important roles in the atmosphere. SO[subscript 2] is associated with the combustion of fossil fuels and contributes to acidification of the ecosystem, particulate sulfate formation and SO[subscript 2] is an EPA regulated species. NO[subscript 3] is the major oxidation species at night often reacting with biogenic volatile organic hydrocarbons emitted during the nighttime air, which lead to peroxyl radical and nitric acid formation. HONO is a major source of hydroxyl radical (OH) in the early morning. All of these three pollutants exhibit strong absorptions in the UV and visible region and their absorption bands are exploited for measurements using the ultrasensitive absorption spectroscopy techniques, cavity ring-down spectroscopy (CRDS) and broadband cavity enhanced absorption spectroscopy (BBCEAS). SO[subscript 2] is measured by CRDS near 308 nm in the UV region with a limit of detection of 3.5 ppb/10 seconds (S/N = 2) and ambient measurements are attempted. Instruments based on light emitting diode (LED) based BBCEAS are developed for measurements of NO[subscript 3] and HONO. NO[subscript 3] is monitored using the 662 nm absorption feature with a limit of detection of 10 ppt/2 minutes (1[Alpha]) and the technique is demonstrated by sampling from an environmental chamber. HONO is measured in the UV region using the 368 nm absorption with a limit of detection of 10 ppb/2 minutes (1[Alpha]).

Download or read book Air Pollution Abstracts written by and published by . This book was released on 1971 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sulfur Dioxide written by Larry A. Haas and published by . This book was released on 1973 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Grants Index written by National Institutes of Health (U.S.). Division of Research Grants and published by . This book was released on 1969 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Research Awards Index written by and published by . This book was released on with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1973 with total page 1256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sulfur Dioxide Emission Control by Hydrogen Sulfide Reaction in Aqueous Solution written by and published by . This book was released on 1973 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report summaries written by United States. Environmental Protection Agency and published by . This book was released on 1983 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Publications Bibliography written by Environmental Research Center (Research Triangle Park, N.C.) and published by . This book was released on 1977 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: