الصفحة 1
الصفحة 1
Environmental Simulation Chambers : Application to Atmospheric Chemical Processes
Atmospheric pollution has many different detrimental impacts on air quality at urban, regional and global scales. Large volume photoreactors (often referred to as smog or simulation chambers) have been used very effectively to investigate and understand many varied aspects of atmospheric chemistry related to air pollution problems. Photochemical smog formation, which was first observed around 1945 in Los Angeles, is now a major environmental problem for all industrialised and densely populated regions of the world. Over the years many different modelling and experimental tools have been developed to analyse and simulate the complex chemical processes associated with tropspheric photooxidant formation. Work in environmental chambers has played a key role in the development of our understanding of the atmospheric chemistry associated with pollution problems on local, regional and global scales.
Ecotoxicology, Ecological Risk Assessment and Multiple Stressors
The science of ecotoxicology and the practice of ecological risk assessment are evolving rapidly. Ecotoxicology as a subject area came into prominence in the 1960s after the publication of Rachel Carson's book on the impact of pesticides on the environment. The rise of public and scientific concern for the effects of chemical pollutants on the environment in the 1960s and 1970s led to the development of the discipline of ecotoxicology, a science that takes into account the effects of chemicals in the context of ecology. Until the early 1980s, in spite of public concern and interest among scientists, the assessment of ecological risks associated with natural or synthetic pollutants was not considered a priority issue by most government. However, as the years passed, a better understanding of the importance of ecotoxicology emerged and with it, in some countries, the progressive formalization of an ecological risk assessment process.
Advances in the toxicity of construction and building materials
Presents the potential and toxic effects of building materials on human health, along with tactics on how to minimize exposure. Chapters are divided into four sections covering the toxicity of indoor environments, fire toxicity, radioactive materials, and toxicity from plastics, metals, asbestos, nanoparticles and construction wastes. Key chapters focus on the reduction of chemical emissions in houses with eco-labelled building materials and potential risks posed by indoor pollutants that may include volatile organic compounds (VOC), formaldehyde, semi-volatile organic compounds (SVOC), radon, NOx, asbestos and nanoparticles.
