affects of air pollution on the environment

Ngày tải lên: 29/06/2014, 09:20

... of the seasonal variation is modelled by the smooth function of temperature, while the long-term trends and temporal correlation are removed by the smooth function of calendar time. The air pollution ... including justifications for the choice of models. The first part focuses on the trend models, while the second discusses the air pollution component. 5.2.1 Modelling trends, seasonal variation and temporal ... mortality or morbidity. The majority of air pollution and health studies fix the effects of air pollution to be constant over time, and model long-term trends and temporal correlation in the health data...

Ngày tải lên: 17/02/2014, 10:20

... indoor air pollution among non-smoking office employees. Environ Res 2007, 103:331-337. 20. Chua ng KJ, Chang CC, Su TC, Lee CT, Tang CS: The effect of urban air pollution o n inflammation, oxidative ... dioxide; CO: carbon monoxide; O3: Ren et al . Environmental Health 2010, 9:78 http://www.ehjournal.net/content/9/1/78 Page 7 of 9 RESEARC H Open Access Effect modification of air pollution on Urinary 8-Hydroxy-2’-Deoxyguanosine ... Environmental Health 2010, 9:78 http://www.ehjournal.net/content/9/1/78 Page 3 of 9 more strongly associated with OC among those carrying the wild type of CAT (rs2284367), the non-deletion of GSTM1...

Ngày tải lên: 17/02/2014, 22:20

... relationships To illustrate the effects of making a different assumption about the shape of the concentration−response function, assume that mortality is linearly related to concentration (rather ... may be the largest source. Estimates of the burden of disease attributed to outdoor air pollution can help set the priority for controlling air pollution, relative to other interventions that ... region, the quantitative assessment of the health impact of outdoor air pollution, using PM10 or PM2.5 measurements, is based on four components: 1. An assessment of the ambient exposure of the...

Ngày tải lên: 06/03/2014, 16:20

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Ngày tải lên: 09/08/2014, 03:24

... carbon dioxide, sulphur dioxide and other greenhouse gases ã carbon dioxide traps heat in the atmosphere and causes the temperature of the earth to rise. ã This leads to disruption of the ... Burning the timber increases the level of carbon dioxide in the air 2. Less trees means less carbon dioxide absorbed for photosynthesis 3. Soil is eroded as it is exposed to the wind and rain 4. ... The Influence of Human Activity on the Environment Develop alternative energy sources ã Conserve our rapidly diminishing fossil fuel reserves...

Ngày tải lên: 28/09/2013, 11:10

... This leads to disruption of the weather patterns eg drought, floods ã Some weeds may thrive on the extra carbon dioxide while other plants are killed Biological Control of Pests ã This means ... from the water ã This means the fish suffocate and die ã This process is called Eutrophication ã Raw sewage pumped into rivers has the same effect The Influence of Human Activity on the Environment ... problems 1. Burning the timber increases the level of carbon dioxide in the air 2. Less trees means less carbon dioxide absorbed for photosynthesis 3. Soil is eroded as it is exposed to the wind and...

Ngày tải lên: 26/01/2014, 10:20

... of exceedance of the nitrogen critical load provides an indication of the level of risk of adverse effects of nitrogen on ecosystems Air pollution will remain a problem in the future ã Air pollution ... critical load provides an indication of the level of risk of adverse effects of nitrogen on ecosystems Air pollution will remain a problem in the future ã Air pollution continues to cause cardiovascular ... deposition After nitrogen deposition This brochure was produced by the Working Group on Effects of the United Nations Economic Commission for Europe Convention on Long-range Transboundary Air Pollution...

Ngày tải lên: 17/02/2014, 22:20

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Ngày tải lên: 29/03/2014, 21:20

... convection associated with heavy monsoon rainfall along the foothills of the Himalayas near Nepal. The cloud clusters off the coast of the southern tip of the subcontinent and over the Bay of ... largely a reflection of the seasonal variations of the meteorological conditions. The bulk properties of the aerosols can be inferred from the variations of the Ångstrøm exponent (Figure 3(b)). ... large-scale circulation patterns are characteristic of the impacts of absorbing aerosols on the Indian monsoon. The 2008 Indian monsoon In this section, we use the 2008 Indian monsoon as an example...

Ngày tải lên: 17/02/2014, 22:20

... . Convention on long-range transboundary air pollution. Task force on mapping, Geneva, Publication of the Federal Environmental Agency, Berlin. Westman L. 1974. Air pollution indications ... indirect pollution explanatory variable owing to the lack of any direct measurements of the pollution impact. Statistical analysis of ground vegetation and environmental variables The variation ... distribution of the effects of pollutants on epiphytic lichens, ground vegeta- tion and the growth and crown condition of Scots pine due to the different sensitivity of these plant groups to pollution. ...

Ngày tải lên: 17/02/2014, 22:20

... to consider carefully the connections between the chemistry of the atmosphere and climate. These connections are complex and their nonlinearity is exemplified by the fact that concentrations of ozone ... reduce the warming induced by the capping of SO x . Note that these climate calculations in Figure 6 omit the cooling effects of the CO 2 reductions caused by the lessening of the inhibition of the ... account for the effects of air pollution policies on overall demand for fossil fuels and on the choice of fuels (coal, oil, gas), nor have we considered the effects of caps on black carbon or organic...

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