Suchergebnisse

Chapter 1 Overview of atmospheric reactive nitrogen in China from a global perspective -- Part I Reactive nitrogen emission and deposition in China -- Chapter 2 Anthropogenic emissions of SO2, NOx and NH3 emissions in China -- Chapter 3 Monitoring nitrogen deposition in China -- Chapter 4 Modelling nitrogen deposition in China -- Chapter 5 Reactive nitrogen budgets in China -- Part II Contribution of atmospheric reactive nitrogen to China's air pollution -- Chapter 6 Contribution of atmospheric reactive nitrogen to haze pollution in China -- Chapter 7 Contribution of reactive nitrogen to ozone pollution in China -- Chapter 8 Contribution of atmospheric nitrogen to acid deposition in China -- Part III Impacts of nitrogen deposition on China's ecosystems Chapter 9 Impacts of nitrogen deposition on forest ecosystems in China -- Chapter 10 Impact of nitrogen deposition on China's grassland ecosystems -- Chapter 11 Impact of nitrogen deposition on China's desert ecosystems -- Chapter 12 Impact of nitrogen deposition on China's lake ecosystems: Taking Lake Dianchi as an example -- Part IV Reactive N Regulation Chapter 13 Nitrogen regulation in China's agricultural systems -- Chapter 14 National regulation of SO2 and NOX emissions in China

Due to the threat of a possible global climate change and the greenhouse effect caused by constituents of anthropogenic origin in the atmosphere, air quality has become a major environmental issue. As a consequence, emissions into the atmosphere need to be monitored and controlled. Measurement of Atmospheric Emissions presents technologies for emission control and analysis from industrial and energy plants. The author explains the physical and chemical basis before proceeding to the practical performance. This publication provides the reader with the knowledge necessary to critically analyze and investigate emission measurement techniques. It will be of great interest to researchers and engineers in the fields of environmental technology and air pollution control. It will assist in the choice of the most appropriate instruments for various purposes and circumstances

This book presents select papers from the 7th International Symposium on Advanced Environmental Monitoring. It addresses numerous monitoring topics as well as real world problems such as supporting economic development amid changing environmental conditions.

There is ever increasing concern about both the ozone depletion in the stratosphere and the increase in the ozone concentration in the troposphere. As a consequence, there is growing interest in total ozone surface and satellite observations, surface UV measurements and the interpretation of results to assess potential impacts of UV radiation enhancement on man and the biosphere. The volume analyses problems of total ozone and UV-B variability. Further, it treats tropospheric ozone changes as well as the responsible factors, such as air pollution, chemical and photochemical reactions coupled with air transport. Some key problems of numerical modelling are also discussed. Another subject is the development of remote sensing techniques to retrieve minor optically active components of the atmosphere

Radionuclides produced by past nuclear weapon test explosions comprise the largest source of anthropogenic radioactivity released into the earth's atmosphere to date. This volume presents data and models about the fate of the released radionuclides and their possible effects on human health. It is divided into the following three parts: - Source Term Studies; - Dose Reconstruction; - Ecological and Health Effects, and comprises both Western and formerly secret Soviet research studies, illuminates past and current research

Methane plays many important roles in the earth's environment. It is a potent "greenhouse gas" that warms the earth; controls the oxidizing capacity of the atmosphere (OH) indirectly affecting the cycles and abundances of many atmospheric trace gases; provides water vapor to the stratosphere; scavenges chlorine atoms from the stratosphere, terminating the catalytic ozone destruction by chlorine atoms, including the chlorine released from the man-made chlorofluorocarbons; produces ozone, CO, and CO2 in the troposphere; and it is an index of life on earth and so is present in greater quantities during warm interglacial epochs and dwindles to low levels during the cold of ice ages. By all measures, methane is the second only to CO2 in causing future global warming. The book presents a comprehensive account of the current understanding of atmospheric methane, and it is an end point for summarizing more than a decade of intensive research on the global sources, sinks, concentrations, and environmental role of methane

environmental management; air quality control; air pollution; climate change; agriculture; atmospheric protection; soil science; conservation

Anthropogenic emissions of ammonia cause a host of environmental impacts, including loss of biodiversity, and formation of particulate matter in the atmosphere. Under the auspices of the UNECE Convention on Long Range Transboundary Air Pollution, around 80 experts met to review the state of scientific knowledge. This book reports their analysis

The burning of biomass - forests, grasslands, and agricultural fields after the harvest - is much more widespread and extensive than previously believed; most biomass burning is thought to be initiated by humans and is on the increase. This comprehensive volume is the first to consider biomass burning as a global phenomenon and to assess its impact on the atmosphere, on climate, and on the biosphere itself. The 63 chapters by 158 scientists - including leading biomass burn researchers from third-world countries, such as Brazil, Nigeria, Zaire, India, and China, where biomass burning is so prevalent - point to biomass burning as a significant driver of global change on our planet.Global Biomass Burning provides a convenient and current reference on such topics as the remote sensing of biomass burning from space, the geographical distribution of burning; the combustion products of burning in tropical, temperate, and boreal ecosystems; burning as a global source of atmospheric gases and particulates; the impact of biomass burning gases and particulates on global climate; and the role of biomass burning on biodiversity and past global extinctions.Also included are contributions on the importance of biomass burning from the International Geosphere-Biosphere Program: A Study of Global Change and from the International Global Atmospheric Chemistry Project, as well as policy options prepared by the U.S. Environmental Protection Agency for managing biomass burning to mitigate global climate change.Joel S. Levine is Senior Research Scientist in the Atmospheric Sciences Division, NASA Langley Research Center and is the Principal Investigator of NASA's research program on global biomass burning, Biospheric Research Program, Office of Space Sciences and Applications.