نتایج جستجو برای: sulphur dioxide so2
تعداد نتایج: 103388 فیلتر نتایج به سال:
BACKGROUND A study was undertaken to determine the relationship between hospital admissions for asthma and all respiratory conditions in electoral wards in the West Midlands and ambient levels of smoke, sulphur dioxide, and nitrogen dioxide, and to establish whether the relationship is independent of social deprivation and ethnicity, and is different for young children and older individuals. ...
A core challenge in epidemiological analysis of the impact of exposure to air pollution on health is assessment of the individual exposure for subjects at risk. Geographical information systems (GIS)-based pollution mapping, such as kriging, has become one of the main tools for evaluating individual exposure to ambient pollutants. We applied universal Bayesian kriging to estimate the residentia...
BACKGROUND A study was undertaken to investigate the relationship between daily hospital admissions for asthma and air pollution in London in 1987-92 and the possible confounding and modifying effects of airborne pollen. METHODS For all ages together and the age groups 0-14, 15-64 and 65+ years, Poisson regression was used to estimate the relative risk of daily asthma admissions associated wi...
BACKGROUND Very few published studies have looked at the effects of air pollution on health in the primary care setting. As part of a large study to examine the association between air pollution and a number of health outcomes, the relationship between daily GP consultations for asthma and other lower respiratory diseases (LRD) and air pollution in London was investigated. METHODS Time-series...
The impact of ambient air pollution on suicide mortality: a case-crossover study in Guangzhou, China
BACKGROUND Preventing suicide is a global imperative. Although the effects of social and individual risk factors of suicide have been widely investigated, evidence of environmental effects of exposure to air pollution is scarce. We investigated the effects of ambient air pollution on suicide mortality in Guangzhou, China during 2003-2012. METHODS A conditional logistic regression analysis wit...
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...
This study was conducted to study climatic and air pollution of Tripoli city center, Libya using ambient air quality station; during the period between Jan. to Dec. 2014. Particulate matter, Ozone, Carbon oxides (CO & CO2), Nitrogen oxides (NO & NO2), Sulphur gases (SO2 & H2S) and volatile organic compounds (VOCs) were determined using Aeroqual AQM-60 Environmental Station. The objective was to...
Browning has been controlled by sulfur dioxide (SO2 ) in wine for many years, but other compounds also have the potential to reduce browning. Bentonite, Cufex and SO2 were applied to juice from Riesling grapes Vitis vinifera L. and Vidal grapes, a French-American Hybrid to compare their effects on wine browning. Seven treatments (control, 35 mg/L SO2, 70 mg/L SO2, 120 mg/L bentonite, 240 mg/L b...
The association between daily mortality and short-term variations in the ambient levels of ozone (O3), black smoke (BS), sulphur dioxide (SO2), nitrogen dioxide (NO2), carbon monoxide (CO) and particulate matter was studied in The Netherlands. Daily total and cause-specific mortality counts (cardiovascular, chronic obstructive pulmonary disease (COPD) and pneumonia), air quality, temperature, r...
The effect of daily ambient air pollution was examined within a cohort of 846 asthmatic children residing in eight urban areas of the USA, using data from the National Cooperative Inner-City Asthma Study. Daily air pollution concentrations were extracted from the Aerometric Information Retrieval System database from the Environment Protection Agency in the USA. Mixed linear models and generaliz...
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