نتایج جستجو برای: pollution intensity
تعداد نتایج: 249745 فیلتر نتایج به سال:
Extreme particulate matter (PM) air pollution of January 2013 in China was found to be associated with an anomalous eastward extension of the Siberian High (SH). We developed a Siberian High position index (SHPI), which depicts the mean longitudinal position of the SH, as a new indicator of the large-scale circulation pattern that controls wintertime air quality in China. This SHPI explains 58 ...
Economic reform has resulted in considerable decentralization and exceptional economic growth in China. It has however posed a serious contradiction for China’s environmental protection efforts. This study empirically investigated the environmental effects of market and power decentralization using data on industrial SO2 emission and dusts at the city level. It is found that China’s industrial ...
In Guadeloupe (French West Indies), the main municipal solid waste is surrounded by highly urbanized areas. An urban heat island (UHI) behavior has been identified in the landfill environment. It has been measured and its intensity (up to more than 4 C) has been shown to be negatively correlated with nebulosity and Tradewinds strength. Conditions for urban breeze detection have been examined. T...
Anthropogenic disturbance is a major cause of worldwide declines in biodiversity. Understanding the implications of this disturbance for species and populations is crucial for conservation biologists wishing to mitigate negative effects. Anthropogenic light pollution is an increasing global problem, affecting ecological interactions across a range of taxa and impacting negatively upon critical ...
During the last decades special attention of scientists has been focused on environmental pollution intensity and a great number of the so-called outdoor allergens (SO2, NO2, phenol, combustion gases, etc.) as well as on their increasing effect of formation of allergic diseases. Children's population is most sensitive to the influence of unfavorable environmental factors. This is associated wit...
More people are using more resources with more intensity than at any point in human history. Fresh water, cropland, forests, fisheries and biodiversity all show signs of stress at local, regional and global levels. Increasing pressure on the environment is the result of, on one hand, increasing affluence—that is, more consumption, pollution and waste, and on the other persistent poverty—that is...
A novel sensing system has been designed for naphthalene detection based on the quenched fluorescence signal of CdS quantum dots. The fluorescence intensity of the system reduced significantly after adding CdS quantum dots to the water pollution model because of the fluorescent static quenching f mechanism. Herein, we have demonstrated the facile methodology can offer a convenient and low analy...
Microalgae can be a valuable indicator for monitoring water pollution due to their sensitivity to the changes induced by pollutants in the environment. In this study, an aggregation-induced emission fluorogen was used as a novel tool to differentiate dead and live microalgae and quantify the link between live algal concentration and fluorogen intensity. Protein in the cell protoplasm is the key...
We present a novel technique for particle sizing based on recent studies about the statistical information contained within the light intensity distribution close to a disordered sample. We show that it is much simpler and more robust than the traditional light scattering methods and any imaging technique. Applications to optical diagnostics, process monitoring and pollution monitoring are expe...
BACKGROUND Epidemiological evidence on the association between ambient air pollution and breast cancer risk is inconsistent. OBJECTIVE We examined the association between long-term exposure to ambient air pollution and incidence of postmenopausal breast cancer in European women. METHODS In 15 cohorts from nine European countries, individual estimates of air pollution levels at the residence...
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