منابع مشابه
Environmental tobacco smoke exposure among urban children.
BACKGROUND Environmental tobacco smoke (ETS) exposure is a well-known health hazard for children. Poor urban children may be at increased risk of exposure from nonparental sources of tobacco smoke. The unique problems of ETS exposure in urban children have previously not been well-defined. OBJECTIVES This study was conducted: 1) to identify the sources of ETS exposure for children attending a...
متن کاملParticle concentrations in urban microenvironments.
Although ambient particulate matter has been associated with a range of health outcomes, the health risks for individuals depend in part on their daily activities. Information about particle mass concentrations and size distributions in indoor and outdoor microenvironments can help identify high-risk individuals and the significant contributors to personal exposure. To address these issues in a...
متن کاملPredicting Ecosystem Responses to Elevated CO2 Concentrations
O ne of the many changes occurring in the biosphere due . to human activities is the increase in the carbon dioxide concentration of the atmosphere. This change is due both to the burning of fossil fuels, which is ejecting approximately 5-6 gT of carbon into the atmosphere yearly, and to deforestation, which may account for another 1~2 gT (Moore and Bolin 1986/87, Detwiler and Hall 1988). The p...
متن کاملPredicting Urban Water Quality with Ubiquitous Data
Urban water quality is of great importance to our daily lives. Prediction of urban water quality help control water pollution and protect human health. However, predicting the urban water quality is a challenging task since the water quality varies in urban spaces non-linearly and depends on multiple factors, such as meteorology, water usage patterns, and land uses. In this work, we forecast th...
متن کاملA Morphological Approach to Predicting Urban Expansion
Many methods for modeling urban expansion are available. Most of these computational models demand a variety of large-scale environmental and socio-economic data to investigate the relationship between urban expansion and its driving forces. These requirements are not always fulfilled, particularly in developing countries due to a lack of data availability. This necessitates methods not sufferi...
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ژورنال
عنوان ژورنال: Clean Air Journal
سال: 1987
ISSN: 1017-1703,2410-972X
DOI: 10.17159/caj/1987/7/4.7290