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China Air Pollution Getting Better

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Last Updated: 18 January 2022

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General | Latest Info

Outdoor Air Pollution is one of most serious environmental problems. Coal is still major source of energy, constituting about 75 percentage of all energy sources. Consequently, Air Pollution in predominantly consists of coal smoke, with suspended particulate matter and sulfur dioxide as principal air pollutants. In large cities, however, with rapid increase in number of motor vehicles, air pollution has gradually changed from conventional coal combustion type to mixed coal combustion / motor vehicle emission type. Currently, inhalable particles, 2, and nitrogen dioxide are criteria pollutants of concern in China. Generally, PM levels in cities in North are higher than those in South, whereas SO 2 and NO 2 levels do not differ much. In 2004, annual PM 10 concentrations for major Chinese cities were 102 g / m 3 in southern cities, 140 g / m 3 in northern cities, and 121 g / m 3 in cities nationwide. Annual average concentrations of SO 2 and NO 2 nationwide were g / m 3 and 38 g / m 3, respectively. Although its ambient air quality has improved substantially, China is still facing worst Air Pollution problem in world. Outdoor Air Pollution has become major concern for public health. World Bank Estimates That Total Health Costs Associated With Outdoor Air Pollution In Urban Areas Of China In 2003 Was Between 157 And 520 Billion Chinese Yuan, Accounting For 1. 2-3. 3 percentage China's gross domestic product. Health end points studied in China in association with Air Pollution include all-cause mortality, mortality and morbidity due to cardiopulmonary and numbers of outpatient and emergency department visits. Changes in respiratory and other symptoms, lung function, and immune function are also study. Dozens of Time-series studies have been conducted in large Chinese cities, including BEIJING, SHANGHAI, Chongqing, Shenyang, Wuhan, and Taiyuan, to assess association of short-term exposure to Air Pollution with mortality or morbidity. Mortality or morbidity risk estimates per unit increase in air pollution level among Chinese populations are generally similar in magnitude to risks estimated in other parts of world. Recent multicity Time-series analysis in Hong Kong, SHANGHAI, and Wuhan provide further evidence of short-term risks, with significant health effects detected at Air levels below minimum air quality standards in China. Currently, new National-level Air Pollution Time-series Study, China Air Pollution Health Effects Study, is under way. In addition, several ongoing panel studies are examining associations between air pollution and subclinical health outcomes before, during, and after 2008 Summer Olympic Games in BEIJING. These panel studies should provide unique opportunity to assess public health benefits of air pollution reduction in cities where air pollution levels have been high. Relatively few studies examined long-term effects of air pollution in China.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Discussion

Beijing experienced more than 200 days of air pollution categorized as unhealthy or worse in 2014, including 21 days that were hazardous-while only about 10 days were considered good, according to data gathered by US Embassy in Beijing. This week, smog was SO severe that authorities declared red alert for first time, closing down schools, halting construction and limiting car traffic. Alert Came During Week When Negotiators At UN Climate Summit In Paris Accused China Of Trying To Weaken Global Accord, And Month After Report That China Has Been Burning Up To 17 Percentage More Coal Year Than It Previously Disclose. Environmental conditions in China have stoked worries among public there about air pollution and whether situation is likely to improve. But when it comes to broader subject of climate change that is being discussed in Paris, Chinese show less intensity in their concerns compared with people in many other nations. About three-quarters of people in China say air pollution is big problem, including 35 percentage WHO regard it as very big problem, according to our Spring 2015 Global survey. About same number of Chinese say water pollution is very or moderately big problem, and of 15 issues test, both rank among public's top concerns. More than third of public believe air pollution will improve over next five years. But 34 percentage of Chinese expect situation to worsen and 22 percentage say it will remain same over that time period. Chinese living in Beijing and Shanghai, countrys two largest cities, are most pessimistic of those poll: 53 percentage believe air pollution will worsen in next five years. In March, documentary about Air pollution entitled Under Dome went viral in China, drawing more than 150 million viewers on video sites like Youku in less than week. China's minister of Environmental Protection, Jining, refers to phenomena as nations Silent Spring moment. However, Communist Party pulled video offline shortly afterward. Both video and US Embassy data focus on PM2. 5, which are in smog and acid rain and originate from coal plants, diesel trucks, dust from construction sites, and other sources. These tiny pollutants are among most dangerous, as they can embed in lungs and enter bloodstream, leading to heart and respiratory problems, according to US Environmental Protection Agency. Despite widespread concern about air pollution, Chinese are less intensely worried about broader issue of climate change than people in many other nations. Three-quarters of people in China, world's top polluter, say climate change is at least somewhat serious problem, but just 18 percentage say it is very serious problem-decline of 23 percentage points since 2010, and much lower than 54 percentage median in 40 countries surveyed by WHO say same.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Methods

National Air Pollution plans devised by China have seen significant reductions in pollution levels and associated health risks. C hina has lifted millions out of poverty like no other country on planet. Price Of That Economic Progress Is Demonstrated In Air Pollution That Has Caused Public Health Crisis, Killing More Than 1. 1 million people every year. It has also proven costly for nation as economy suffers annual loss of $37 billion due to pollution-induce crop failure. After Beijings airpocalypse sparked mass outpouring of anger and frustration among citizens, China set out to clean up air quality of its cities. Government Prohibited New Coal-fired Power Plants And Shut Down Number Of Old Plants In Most Polluted Regions, Including City Clusters Of Beijing-Tianjin-Hebei And Pearl And Yangtze Deltas. Large cities like Shanghai, Shenzhen, and Guangzhou restricted number of cars on road and started introducing all-electric bus fleets. Companies reduced their iron-and steel-making and shut down coal mines. Government Also Introduced Aggressive Afforestation And Reforestation Programmes Like Great Green Wall And Planted More Than 35 Billion Trees Across 12 Provinces. With investments of over $100 billion in such programmes, China's forestry expenditure per hectare exceeds that of US and Europe and has become three times higher than global average. Air Pollution Action Plan Released In September 2013 Become China's Most Influential Environmental Policy. It help nation to make significant improvements in its Air between 2013 and 2017, reducing PM2. 5 levels by 33 percentage in Beijing and 15 percentage in Pearl River Delta. In Beijing, meant reducing PM2. 5 levels from 89. 5g / M to 60. City Achieves Annual Average PM2. 5 level of 58g M-drop of 35 percentage . But even so, no cities reach World Health Organization recommended annual average PM2. 5 level of 10g / M. And as of end of 2017, only 107 of China's 338 cities at prefectural level or higher had reached WHOs interim standard of 35g / M. As part of second phase of its battle against Air Pollution, in 2018, China introduced its Three-Year Action Plan for Winning Blue Sky War. While 2013 Action Plan only set PM2. 5 level targets for clusters of Beijing-Tianjin-Hebei and Pearl and Yangtze Deltas, New Three-Year Action Plan applies to all cities in China. It mandates at least 18 percentage reduction in PM2. 5 levels on 2015 baseline in as many as 231 cities that have not yet reached government standard-average of 35g / M. Previous Plan did not addrest primary pollutant that makes air deadly in many cities: ground-level ozone-highly irritating gas created by volatile organic compounds reacting with nitrogen oxides release from vehicles. Although ozone in upper atmosphere protects Earth by blocking solar radiation, it is extremely toxic in troposphere and could cause asthma and respiratory tract infections among residents.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

Sources

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions.

* Please keep in mind that all text is machine-generated, we do not bear any responsibility, and you should always get advice from professionals before taking any actions

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