Spring rain moistening of "acid"

Spring rain moistening of "acid" background information "since the Iceland volcanic eruption, a lot of sulfide to high altitude eruptions, we will suffer a 750 year acid rain. "Recently, mad on this network segment. Many people hold "prefer to believe them" attitude umbrella ready. , Chairman of the Chinese society of volcanic Fan Qi Cheng said on April 14 the eruption of Iceland volcano, levels measured by volcanic eruptions however, level 3, in the volume of volcanic eruptions has only a moderate, will not have too much of an impact on China. In addition, some experts pointed out that, rather than worry about uncontrollable volcano ash, rather than worry about human control of vehicle emissions and industrial pollution. Therefore, prone to acid rain in spring and summer seasons, people should still prevent possible harm of acid rain. What is acid rain rain, as its name suggests, is with acid rain. Its formation was due to the increase in carbon dioxide, sulfur dioxide and other gases in the air, they combine with water to become acid, the acid dissolved in water droplets in the atmosphere, with acid rain will decline. Carbon dioxide and nitric oxide in the atmosphere mainly comes from the combustion of coal and petroleum and natural gas, they slow oxidation in air, forming sulfuric acid and nitric acid, respectively. Acid rain effects on human health damages respiratory acid rain or acid fog on human respiratory system is the most important influence, acid will have an impact on pulmonary respiratory function, especially young people enter puberty, Lung bronchial relatively straight, acidic materials easy to reach the Bronchioles and alveoli, cause damage to the peripheral small airway ventilation function. This can cause acute and chronic respiratory damage, light can cause cough, upper respiratory inflammation such as hoarseness; severe cases can cause shortness of breath, chest pain, can occur even with emphysema and Cor pulmonale. In addition, under certain conditions, if the formation of acid fog penetrated human lungs can lead to pulmonary edema, pulmonary Sclerosing. Extensive research shows that sulphur dioxide from the respiratory tract for major defense function of alveolar macrophages with serious damage, its consequences will cause respiratory tract infections, lung tumor occurrence of significant growth. Eyes of acid rain or acid mist can stimulate people's eyes, trachoma prevalence increases. In addition, acid rain also have indirect effects on human health. People drink acidification of surface water and groundwater of soil infiltration in higher metal content, edible fish such as acidification of lakes and rivers, some heavy metals enter the body gradually accumulate through the food chain, and ultimately cause harm to the human body. How to avoid or mitigate the harm of acid rain 1. to reduce the emission of pollutants to the atmosphere, such as the emission of sulfur oxides are recycling, use of low sulphur fuels, may reduce the incidence of acid rain. 2. acid rain-prone season, such as the spring and summer, to avoid the rain to clean skin surface as soon as possible after the rain. 3. minimize the activities in the fog in environment, go out wearing a mask to reduce inhalation of hazardous substances. 4. daily life, should pay attention to food and drinking water health, variety of diet and trophic structure. Some foods, such as mung beans, seaweed and fresh fruit, and so on, can accelerate the Elimination of harmful substances in the body and eat these foods, can effectively reduce the harm of acid rain on health. Districts prone to acid rain in China's acid rain are mainly distributed in the Yangtze River in China, Qinghai-Tibet plateau and Sichuan basin to the South. Acid rain pollution in central China's most severe, its Centre regional annual average pH value of acid rain below 4.0 (pH values below 5.6 as acid rain), acid rain frequency over 80%. Nanchong, Yibin, Chongqing in Southwest China and Zunyi city centres such as acid rain area, had eased in recent years, but immediately after in central China, and acid rain are mainly located in coastal regions of East China in Xiamen coastal regions to the South in the lower reaches of the Yangtze River, after the regional strength of acid rain pollution in central China. See the original April 29, 2010 edition of the family health report