Air pollution is one of the serious problems facing the world. This is mainly due to production and consumption of fossil fuels. Sulphur dioxide (SO2) and oxides of nitrogen (NOx) emissions could affect human health a...Air pollution is one of the serious problems facing the world. This is mainly due to production and consumption of fossil fuels. Sulphur dioxide (SO2) and oxides of nitrogen (NOx) emissions could affect human health and destroy vegetation through acid deposition and cause transboundary air pollution. Currently, there are no regional ambient SO2 and NOx regulations and control measures of many developing countries including GCC countries. This paper reviewed the experiences of the past acid rain pollution problems in United States, Canada, Europe, Japan and China. In addition, the plausible control measures through application of air pollution abatement technologies, market based regulations were discussed. The study recommended that suitable and locally based measures could be adopted by GCC states to prevent future occurrence of acid rain within the region and beyond.展开更多
Forest yellow soil and arable yellow soil in Jinyun Mountain were collected to study the effect of simulated acid rain(adjusted to pH 2.0,3.0,4.0 and 5.0) on the Hg leaching from soils by the methods of static extract...Forest yellow soil and arable yellow soil in Jinyun Mountain were collected to study the effect of simulated acid rain(adjusted to pH 2.0,3.0,4.0 and 5.0) on the Hg leaching from soils by the methods of static extraction and dynamic leaching.The results showed that in forest yellow soils,surface accumulation of Hg occurred,and the accumulated Hg was easier to be leached out than that in arable yellow soil by acid rain.The amount of leached Hg was the largest at pH 4.0.To abate the risk of Hg pollution in water bodies by the Hg leaching from this forest soil,the Mountain should be closed,and timber-felling should be forbidden.展开更多
文摘Air pollution is one of the serious problems facing the world. This is mainly due to production and consumption of fossil fuels. Sulphur dioxide (SO2) and oxides of nitrogen (NOx) emissions could affect human health and destroy vegetation through acid deposition and cause transboundary air pollution. Currently, there are no regional ambient SO2 and NOx regulations and control measures of many developing countries including GCC countries. This paper reviewed the experiences of the past acid rain pollution problems in United States, Canada, Europe, Japan and China. In addition, the plausible control measures through application of air pollution abatement technologies, market based regulations were discussed. The study recommended that suitable and locally based measures could be adopted by GCC states to prevent future occurrence of acid rain within the region and beyond.
文摘Forest yellow soil and arable yellow soil in Jinyun Mountain were collected to study the effect of simulated acid rain(adjusted to pH 2.0,3.0,4.0 and 5.0) on the Hg leaching from soils by the methods of static extraction and dynamic leaching.The results showed that in forest yellow soils,surface accumulation of Hg occurred,and the accumulated Hg was easier to be leached out than that in arable yellow soil by acid rain.The amount of leached Hg was the largest at pH 4.0.To abate the risk of Hg pollution in water bodies by the Hg leaching from this forest soil,the Mountain should be closed,and timber-felling should be forbidden.
