منابع مشابه
Effects of photochemical smog
Photochemical smog IS a complex m1xture of chemiCals, some harmless. others h1ghly react1ve and poten11ally dangerous for plants, an1mats and humans. The main consmuents of photochemical smog are ozone (0.,) and nitrogen diox1de (N0 2). Although ozone is widely cons1dered the chTef indicator of photochemical smog, Ollrogen diox1de IS an important pollutant in 11s own right, alfecllng human and ...
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High concentrations of both ozone and aerosols are observed in the eastern United States during stagnant weather conditions associated with transport from the W or NW; they show similar spatial and temporal patterns. We discuss a causal mechanism that may contribute to this correlation-the radiative eeects of aerosols on photolysis rates. We measured j(NO 2), the rate coeecient for nitrogen dio...
متن کاملExtent of photochemical smog reaction in the Sydney metropolitan areas
The Sydney basin region experiences some high ozone episodes in summer, especially in the north west and south west of Sydney. Observation-based methods can be used to provide a means to access the potential extent of photochemical smog problem at various regions in the Sydney area. In this study, the observation-based Integrated Empirical Rates (IER) model is used to determine and understand t...
متن کاملAir pollution: I--From pea souper to photochemical smog.
relation to their workload."' Doctors in general practice may be salaried, paid on a capitation basis, or paid per item of service or per patient treated-or they may be paid by a combination of these methods. In the Netherlands, for example, the health insurance schemes fix an earnings target for general practitioners and calculate the capitation payment to provide 70% of this target. The assum...
متن کاملReportrapport Steering Smog Prediction Steering Smog Prediction
The use of computational steering for smog prediction is described. This application is representative for many underlying issues found in steering high performance applications: high computing times, large data sets, and many di erent input parameters. After a short description of the smog prediction model, its visualization and steering are described. The amount of computation needed to solve...
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ژورنال
عنوان ژورنال: Nature
سال: 1976
ISSN: 0028-0836,1476-4687
DOI: 10.1038/259524b0