نتایج جستجو برای: causes of pollution
تعداد نتایج: 21182357 فیلتر نتایج به سال:
Introduction Hydrops Fetalis is a serious condition in fetal period, characterized by the presence of serous fluid accumulation in at least two potential spaces in fetus including pleural effusion, pericardial effusion, and ascites. The incidence of hydrops fetalis is one per 2500-3000 pregnancies. This condition is followed by different diseases. Fetal hemolytic anemia and its hypoxemia due to...
Monitored and diagnosed the machinery equipment by the fault diagnosis technology can find machine malfunctions in time and prevent the equipment’s worst accident from occurring, so that it can avoid casualties, environmental pollution and enormous economic losses. Applied the fault diagnosis technology can find the potential causes in the process of producing equipment, so that eliminate poten...
Objective—To investigate the association between outdoor air pollution and mortality in São Paulo, Brazil. Design—Time series study Methods—All causes, respiratory and cardiovascular mortality were analysed and the role of age and socioeconomic status in modifying associations between mortality and air pollution were investigated. Models used Poisson regression and included terms for temporal p...
Freshwater Pollution in Some Nigerian Local Communities, Causes, Consequences and Probable Solutions
STUDY OBJECTIVE To quantify the short term respiratory health effects of ambient air pollution in the Paris area. DESIGN Time series analysis of daily pollution levels using Poisson regression. SETTING Paris, 1987-92. MEASUREMENTS AND MAIN RESULTS Air pollution was monitored by measurement of black smoke (BS) (15 monitoring stations), sulphur dioxide (SO2), nitrogen dioxide (NO2), particu...
We would like to thank FILLEUL et al. [1] for their thoughtful comments on our paper [2] which discusses some limitations of time-series analyses. The main objective of our study was to evaluate the impact of air pollution on respiratory mortality accounting for primary and underlying causes of death, as accounting for primary causes only may underestimate the real impact of air pollution on re...
OBJECTIVE To explore whether the apparent low threshold for the mortality effects of air pollution could be the result of confounding. DESIGN The associations between mortality and sulphur dioxide (SO2) were analysed taking into account potential confounding factors. SETTING The Netherlands, 1979-87. MEASUREMENTS AND MAIN RESULTS The number of deaths listed by the day on which the death o...
China is a rapidly developing country with one-fifth of the world's population. The country faces major social and political problems, which have gained the world's attention. Equally challenging are serious environmental problems resulting from overpopulation, rapid industrialization, and overuse of natural resources that could potentially threaten the health of China's 1.2 billion people, whe...
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